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Hans-Josef Fell, „The shift from feed-in-tariffs to tenders is hindering the transformation of the global energy supply to renewable energies“, Policy paper for IRENA, July 2017. 1 The shift from feed-in-tariffs to tenders is hindering the transformation of the global energy supply to renewable energies July 2017 Hans-Josef Fell, President of the Energy Watch Group (EWG) and Senior Advisor at DWR eco, served as Member of the German Bundestag from 1998 to 2013. As author of the Renewable Energy Sources Act (EEG), he laid the foundations for Germany’s world-renowned energy transition, formulating for the first time ever the basic principles of economically viable feed-in tariffs. He has also made major contributions to the improvement of framework conditions for renewable energy on both the European and global level. His expertise makes him an internationally popular speaker at conferences and conventions on energy policy issues. Ralph Tigges, environmental scientist and project assistant at the Energy Watch Group, provided scholarly support and legwork. 1. Executive Summary More and more national governments are transitioning from successful fixed feed-in tariff models to tendering schemes as the means of promoting renewable energies (RE). Yet the disadvantages of tenders, which operate like instruments of a planned economy, are varied, significant, and long known. To cite a few examples: Tenders massively curb the expansion rates of renewable energies and thus unnecessarily jeopardize climate protection. In the tendering model, expansion volume and tender design are determined exclusively by the state, hindering free market forces from accelerating renewable energy growth and new innovations. Tenders reduce the diversity of actors; private investors, energy cooperatives, and SMEs in particular are virtually barred from making offers given the high application requirements. Tenders help cement the market power of oligopolies by large corporations and established energy industry companies, thereby diminishing competition. Tenders decrease local public support for renewable energy development by excluding local communities from investment and project planning. When tenders replace feed-in tariffs for decentralised civic investments, investment volumes sink because a large number of decentralised, small investments are eliminated. Calls for tender do not promote advanced decentralised solutions, particularly for grid integration and sector coupling. Overall, tenders slow the cost reduction of renewable energy technologies: according to the learning curve, specific investment costs decrease only with further increases in market volume; since calls for tender are intended to cap the market volume and keep it lower than it would be with feed-in tariffs, they contribute to a considerable slowdown in the cost reduction of renewable energies.
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Page 1: The shift from feed-in-tariffs to tenders is hindering the ...energywatchgroup.org/wp-content/uploads/2018/01/FIT-Tender_Fell_… · Mohit Anand, senior analyst at GTM Research, sees

Hans-JosefFell,„Theshiftfromfeed-in-tariffstotendersishinderingthetransformationoftheglobalenergysupplytorenewableenergies“,PolicypaperforIRENA,July2017.

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Theshiftfromfeed-in-tariffstotendersishinderingthetransformationoftheglobalenergysupply

torenewableenergies

July2017Hans-Josef Fell, President of the EnergyWatch Group (EWG) and Senior Advisor at DWR eco,servedasMemberoftheGermanBundestagfrom1998to2013.AsauthoroftheRenewableEnergySources Act (EEG), he laid the foundations for Germany’s world-renowned energy transition,formulatingforthefirsttimeeverthebasicprinciplesofeconomicallyviablefeed-intariffs.HehasalsomademajorcontributionstotheimprovementofframeworkconditionsforrenewableenergyonboththeEuropeanandgloballevel.Hisexpertisemakeshimaninternationallypopularspeakeratconferencesandconventionsonenergypolicyissues.RalphTigges,environmentalscientistandprojectassistantattheEnergyWatchGroup,providedscholarlysupportandlegwork.1.ExecutiveSummaryMore and more national governments are transitioning from successful fixed feed-intariffmodelstotenderingschemesasthemeansofpromotingrenewableenergies(RE).Yetthedisadvantagesoftenders,whichoperatelikeinstrumentsofaplannedeconomy,arevaried,significant,andlongknown.Tociteafewexamples:

• Tenders massively curb the expansion rates of renewable energies and thusunnecessarilyjeopardizeclimateprotection.

• In the tendering model, expansion volume and tender design are determinedexclusively by the state, hindering free market forces from acceleratingrenewableenergygrowthandnewinnovations.

• Tenders reduce the diversity of actors; private investors, energy cooperatives,and SMEs in particular are virtually barred frommaking offers given the highapplicationrequirements.

• Tendershelpcementthemarketpowerofoligopoliesbylargecorporationsandestablishedenergyindustrycompanies,therebydiminishingcompetition.

• Tenders decrease local public support for renewable energy development byexcludinglocalcommunitiesfrominvestmentandprojectplanning.

• When tenders replace feed-in tariffs for decentralised civic investments,investment volumes sink because a large number of decentralised, smallinvestments are eliminated. Calls for tender do not promote advanceddecentralisedsolutions,particularlyforgridintegrationandsectorcoupling.

• Overall, tenders slow the cost reduction of renewable energy technologies:according to the learning curve, specific investment costs decrease only withfurtherincreasesinmarketvolume;sincecallsfortenderareintendedtocapthemarket volume and keep it lower than it would be with feed-in tariffs, theycontribute to a considerable slowdown in the cost reduction of renewableenergies.

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• Non-transparentproceduresandgovernmentprocurementpracticesencouragecorruption.

Forlargeinvestmentswithindividualplantsover100MW,tenderscanbequiteuseful.They give the state the opportunity for targeted intervention – so that it may, forexample, promote grid integration or attract large investors. At the large scale, SMEs,energycooperatives,andprivate individualscannotraiseadequate financialresourcesanyway.

Suggestions for national policy: Up to a capacity of at least 40 MW, statesupport forrenewableenergiesshouldcontinuetobebasedonorreturntoabasis infixed, legally guaranteed feed-in tariffs. Should tenders under40MWalso bedesired,energycooperativesshouldatleastbeexemptedfromtheobligationtotender. Giventhattheinnovativepoweroffeed-intariffsisconsiderablyhigherthanthatoftenders,newtaskssuchasgridintegrationandsectorcouplingshouldbeaddressedwith feed-in laws. A combined power plant remuneration, which has not yet beenimplementedanywhereintheworld,seemsparticularlywellsuited.Inthisway,thegoalof 100 percent renewable energies can be reached quickly and democratically.Furthermore, an approach without arbitrarily set expansion caps and proscriptivetenderdesignswillpromotestakeholderdiversityandthuscreatespaceforadditionalsourcesofinvestmentandinnovation. Though many scientific analyses and political experiences of the past twodecades have confirmed that tendering schemes produce the negative consequencesmentioned above, the German government, along with other governments and theEuropean Commission, have been working increasingly since 2010 for the transitionfrom fixed feed-in tariffs to tenders. Given the negative effects of tenders, thosewhononethelesschampionthemmustbedrivenbyothergoalsandmotivationsnotusuallycommunicated to the public. Curbing the expansion of renewable energies worksdirectly in the interest of the coal, natural gas, oil, andnuclear industries.With everyslowing down of renewable energy expansion, with every state-imposed cap forrenewableenergies,therevenuesfromfossilandnuclearpowerplantsaresustainedforlonger.Politicalsupportfortenderingisthusbestunderstoodasameansforprotectingtheinterestsoftheoldenergyindustrytothedetrimentoftheglobalclimate.

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2.Introduction2.1.CurrentSituation

In recent years, many governments have increasingly moved away fromadministrativefeed-intariffsandtowardstenderingschemesasthepreferredstrategyin the development of renewable energies. In the 1990s, the UKwas one of the firstcountriestoacceptbidsfromelectricityproducersforcertainelectricityvolumesfromspecificenergysourcesatfixedpricesaspartofitsNonFossilFuelObligation(NFFO).In2009, at least nine countries implemented tenders to promote the expansion ofrenewable energies. One year later, the numberwas already up to 21 and in 2013, itgrew to 44 (IRENA 2013). At the end of 2015, the latest Global Status Report 2016identifiedatotalof64countriesusingtenders(REN212016).Thepopularityoftendersstill lags behind that of feed-in tariffs, but it’s rapidly catching up. At present,administrativefeed-intariffsarestillusedforabout75percentofphotovoltaicprojectsand45percentofwindprojectsglobally(Yanetal.2016). In2017,projectswithalikelytotalof5,100MWofrenewableenergysourceswillbeawardedbytenderinGermany.Othercountries–India,forexample–havealreadydistributed a large number of project surcharges through tender this year. And evenpriortothisyear,renewableenergyprojectstotallingupto$4billionwereselectedinMexico,whileDubai’sElectricity&WaterAuthorityrecentlyawardedan800MWlarge-scaleprojectbytender.

Asurveyofexpertsintherenewableenergyfieldshowsthatinthepastdecade,fixed feed-in tariffswere seen as themost efficient regulatorymeasure in the energysector.Andyetmoreandmoreoftheseexpertsarepredicting–basedonnoscientificevidencewhatsoever–thattheimportanceoffeed-intariffswilldiminishinthecomingyearsandthatoftendersandintelligentnetmeteringgrow(REN212017).

While there are slightdifferencesbetween thedifferent typesof feed-in tariffs,theyallsharethesamecoreideaofremunerationtoensurethechanceofprofitabilityfor investors. This is achieved either by means of a fixed compensation or a slidingpremiumpaidtoenergyproducersontopofthecurrentelectricityprice.Tendersandauctions work the other way around: the government sets a maximum expansioncapacity or budget, and the final remuneration is determined by the results of thetender.

The main objective of this paper is to compare feed-in tariffs to tenders andauctions. Both types of quota-based principleswill be referred to below as “tenders,”andnoexplicitdifferentiationwillbemadebetweenthevarioustypesoffeed-intariffs.

Whatare the reasons for thisacceleratedshift towards tendersandaway from

feed-intariffs,whichhavesuccessfullyfedthousandsofmegawattsofgreenenergyintothegridover the last fewyears?MohitAnand,senioranalystatGTMResearch, seesaclear link to the financial crisis and the large deficits it produced in many Europeancountries(Warren2016).Butthesearchforausteritymeasures isnottheonlyreasonfor the shift. Thepossibility for governments to artificially limit the expansion rate of

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renewable energies according to their own desires and thus to protect conventionalenergyproducersseemstobeanevenmoreimportantfactor.

Some experts in the field, such as Joachim Falkenhagen, are sceptical aboutmakingdirectcomparisonsbetweentheeffectivenessoffeed-intariffsandtenders.Duetothelargenumberofvariablesatplayandthelackofconsistentframeworkconditionsduringtransitionsfromonemodeltotheother,hecanidentifynoclearadvantagesordisadvantagestoeithermodel(Falkenhagen2017).

Currentdevelopments,however,demandamore thoroughconsiderationof theeffectivenessandimpactoftenders,theemergingstrategicpolicyinstrumentofchoicefortheexpansionofrenewableenergies.Thefollowingpageswillprovideananalysisofthetenderingobligationforsmallandmediumsizedprojectsuptoatotaloutputof40MWversusremunerationthroughfeed-intariffs.2.2.Historicalcontextandexperiences Demandsfortenders,oncereferredtoasquotaschemes,insteadoffixedfeed-intariffs have always been made by representatives of the fossil and nuclear energyindustries;theyareasoldastheEEGitself. In tenderingschemes, thebidderwith the lowestbid isawarded the tender; inquotaschemes,ontheotherhand,theremunerationconsistsofthepriceofelectricityandthecertificate.Itispreciselythisthatgeneratesagreatdealofeconomicuncertaintyfor producers. Quota and tendering models are primarily introduced when the statewantstosetanupperlimitfortheexpansionofrenewableenergies;thequantitiesarethen tobemetat the lowestpossibleprice (Fell2013).But capsalways lead toweakexpansionvolumes, farbelowwhat couldbe achieved through entrepreneurialpowerandsociety’sexpansionvolumes;theythushindertherapidimplementationofazero-emissioneconomytoprotecttheclimate. Under the feed-in tariff principle, by contrast, the state specifies only that theexpansion of renewable energies allow investors to make a profitable investment.Without this assurance, competitive distortions from the nuclear and fossil energyindustriescouldnotbeovercome.Eventoday,theoldenergyproducersretainavarietyof competitive advantages. External damage costs (air pollution, climate damage,nuclearwastedisposal,etc.),forexample,arenotornotfullytransferredtothepollutersthemselves, but borneby taxpayers. In addition, subsidies havebeenhistorically highandarecurrentlymassive;inGermanyalone,theycometomorethan3.2billioneurosannuallyforthecoalindustry(ODI2017).NicholasStern,formerchiefeconomistoftheWorldBank,hasnotunjustlyasserted“thatclimatepolicyisthebesteconomicpolicy:itcostsonlyaboutonepercentoftheglobalGDP,whereasforgoingitcouldcostupto20percent.”Heseesinitsfounderingthegreatestmarketfailureofalltime(Vorholz2006). Evenbeforetheturnofthemillennium,HermannScheer,formerMemberoftheGerman Bundestag and President of EUROSOLAR, and I spoke out against theintroduction of quota schemes and in favour of feed-in tariffs for electricity fromrenewable energies (Scheer 1998). In the following decades, both Scheer and Ireiterated this call, pointing out that with a fixed quota for renewable energies and

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corresponding calls for tender, the electricity companies could exploit their financialclout against new, independent providers and regain their investment monopoly(Scheer 2006). Scheer warned that “if a change in government results in theabandonment of the current guaranteed purchase, it will fast bring to a halt theexpansion of electricity produced from renewable sources” (EUROSOLAR 2005). Bynow, it’sbecomeclear thatwith the introductionof tenders, theguaranteedpurchasewasbasicallyabolishedforthosewhocouldn’twinthebid.Scheerforesawthetruthtocome: investments outside the tendering volume are now virtually non-existent sincetheguaranteedpurchaseislimitedonlytoelectricityfromthetendervolumeprovidedthattherearenotparallelfeed-intariffsinothersegments. InneighbouringDenmark,PrebenMaegaard–Danishpioneer,author,andexpertinthefield–wasanotherearlyvoiceagainsttendering.Thedecisiveargumentagainstthe quantity-based tendering model, he contended, is the official determination of aspecificupperlimitforrenewableenergiesandtheuncertaintyastowhetherornotitwillbeextendedbypoliticaldecisions(Maegaard2001). By the start of the 21st century, itwas clear that only those countries that haddecidedearlyoninfavouroffeed-intariffs–Spain,Germany,and,until2000,Denmark–wereabletoachieverealsuccesses.Othercountries,bycontrast–theUK,Ireland,andFrance–harnessedsignificantlylesswindenergydespitehigherpotentials(Fell2003).The UK, for example, despite boasting higher wind potential than Germany, didn’tmanagetobringasmuchpowertothegrid:amere7GWwereinstalledontheBritishIslesbylate2011,whileinthehomeoftheenergytransition,thenumberwasfourtimesashighandachievedatmuchlowercost–about€0.07perkilowatthourasopposedto€0.13 in theUK.Thereason for thisdiscrepancy is that in theUK, tenderswereused,thus limiting from the get-go the circleofpotential suppliers to large companieswithhighyieldexpectations(Fell2012). In its 2005 report, the European Renewable Energies Federation (EREF)determinedthatcountriesthathadimplementedminimumpricingsystemswereabletoexpand their green energy faster and at lower cost than countries using quotas. As aresult, many more new jobs were created and increased regional added value wasachieved(Bechberger&Reiche2005). In2008, theEuropeanCommission issuedaworkingdocument that foundwelldeveloped feed-in tariff systems tobegenerally themostefficientandeffectivemodelfor promoting renewable energies. It also called for high priority to be placed oneliminating administrative hurdles and ensuring accessible network access forrenewables(EC2008). In summary, the experiences and scientific findings of the last two and halfdecades have already clearly shown that feed-in tariffs have a positive effect andacceleratetheexpansionprocesstowards100percentrenewables.Tenders,bycontrast,canleadonlytocomparativelylesssuccessfulresults.2.3.Europeanperspectiveandlegalframework

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Despite these clear scientific findings andmany years of experiencewith bothmodels,theEuropeanCommission(EC)hasforyearsbeenpressingEUmemberstatestoreplacetheirwell-functioningadministrativefeed-intariffswithtenders. Here, too, as sooften in thepolitical sector:whenpolitical actionsare taken indirectopposition to clear andoverwhelming findings, thenunspokenmotivationsandinterestsmoredominantthanthestateofempiricalknowledgemustbeatplay. Itcanonly be assumed that the conventional energy industry lobby is so dominant that indirect opposition to the state of knowledge, tenders are being implemented by theEuropeanCommissionand,increasingly,bynationstateswithinEuropeandbeyond.Itis,afterall,clearthattendersslowtheexpansionofrenewableenergiesandthusservetheinterestsoftheoldenergycompaniestwiceover:ontheonehand,businessbasedon climate-destroying fossil energy can be prolonged, and on the other hand, theprogress of many new players in the energy sector is hindered to the benefit of theenergyoligopoly. The European Commission’s main justification for its decision is that a well-plannedtenderleadstothegreatestpossiblelevelofcompetition,whichrendersvisiblethetruecostsofindividualprojects,promoters,andtechnologies.Thisinturnleadstoacosteffectivelevelofminimumsupportnecessary(EC2013). ThisargumentissimplywrongandisrefutedbytheCommission’sownfindingsinitsworkingpaper(EC2008).Sustainedprotestagainsttheseplansonthepartoftherenewableenergycommunity,however,hassofarbeenunsuccessful–aclearindicationofthestrengthoftheconventionalenergyindustrylobbyandthepowerlessnessoftheREcommunity,whichconsistsofindustryassociations,environmentalassociations,andgreenpoliticalactors. TheCommissiondoes,however,providepossibilitiesforexemptionsforsmallerplants; these proceed from awritten reply fromBrussels to a request of the GermanWindEnergyAssociation(BWE).Thereplyclearlyconfirmsthevagueformulationusedin the Commission’s Environmental and Energy Aid Guidelines 2014-2020 (EC 2014)and acknowledges the possibility of exemption from the tendering obligation forprojectswithamaximumlimitof18MWof installedcapacity.Theaimis“topromotedemonstrationfacilitiesaswellassmallandmediumsizedfacilities for localandnon-industrialuseandtofreesuchprojectsfromadministrativeburdens”(Vestager2016).

The wind energy industry welcomed the Commission’s de minimis regulation,even though it had hoped for a higher maximum limit of 36 MW (IWR 2016). ThisinterpretationwasalsosupportedbyGermany’sFoundationforEnvironmentalEnergyLaw,whichcontendsthat“GermanlawmakerswhodraftthenextEEGwillbeonthesafeside of the guideline requirements if they exempt wind energy projects with sixgenerating units and an output of up to 36 MW from the obligation to tender”(Münchmeyer&Kahl2014). The authors of an Institute for Advanced Sustianability Studies (IASS)workingpaperalso recommend that “tomaintain thediversityofparticipants in the tenderingprocess, the de minimis rules granted by the EU must be fully exploited” and “to

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minimise the risk of refinancing facilities and involve small players, sliding marketpremiumsshouldcontinuetobeputoutfortender.” Legal experts see things similarly and contend that “within de minimis limits,memberstates[have]leewaytocontinueworkingwithadministrativelyfixedvolumesofelectricityfromrenewablesourcesiftheywishtodosopolitically.Thusintermsofpreservingadiversityofactors,itisquiteappropriatetoexcludesmallerprojectsfromtheswitchtotenderswithintheEuropeandeminimislimitsandinaccordancewiththeaid guidelines” based on the fact that the preservation of stakeholder diversity wasexpresslyenshrinedbylawmakersintheBasicPrinciplesoftheLaw,Sec.2,Para.5,Page3,EEG2014andthusmustalsobeobservedindecisionsbynon-legislativeregulatoryauthorities(Kahletal.2014). As to the fundamental question of whether or not the Commission’s aidguidelinesarelegallymandatoryonthenationallevel,theIASShasthefollowingtosay:“Since the guidelines are only relevant for actual aid, and the German federalgovernment takes the view that the EEG’s subsidy mechanism does not meet thedefinitionof state aid as provided inArticle 107 (1)Treaty on theFunctioningof theEuropean Union, it’s questionable to what extent the guidelines apply to Germanlegislatorsatall.”ThorstenMüller,ChairmanoftheBoardandResearchDirectorattheFoundationforEnvironmentalEnergyLaw, isevenmoreexplicit.Forhim,“thereisnoneedtointroducetendersfromalegalperspective”(Müller2014). As early as 2001, the European Court of Justice (ECJ) confirmed that Germanfeed-in tariffs complied with European competition law in its precedent-settingPreussenElektra ruling. In its reasoning, the court stated that “the use of renewableenergy sources for producing electricity, which a statute such as the amendedStromeinspeisungsgesetz is intended to promote, is useful for protecting theenvironmentinsofarasitcontributestothereductioninemissionsofgreenhousegaseswhichareamongstthemaincausesofclimatechangewhichtheEuropeanCommunityand itsmemberStateshavepledged to combat” and invokes, amongother things, theKyotoProtocol(ECJ2001). Therulingrightlypointstothenecessityofreducinggreenhousegasemissions;theseandotherexternaldamagecostsofconventionalpowergenerationhavenotbeensufficientlyinternalisedthusfarbyexistingregulations.Inthisrespect,theintroductionoffeed-intariffsprovidedafirstequaliserandtherebycreatedaninvestmentbasisforrenewables.ThisargumentwasfurtherstrengthenedbytheinternationalParisclimateaccordof2015. AndyetontheEuropeanlevel, inoppositiontoallscientificevidence,therehasbeen a strong commitment to tendering for years; the European Commission inparticularhastriedtoimplementitspoliticalpro-tenderstanceintheEUmemberstates–evenwithoutclearlegallegitimacy.2.4.SynopsisofthepoliticalsituationinGermany

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Back in2015, theGreenParty faction in theGermanBundestagdemanded thatthe “automatic introduction of tendering models, anchored in the EEG for all greenelectricity technologies starting in 2017, not be implemented” and that instead, “thelatitudeoftheEUaid lawbeexploitedinorderthatthediversityofactors involvedinthe development of green electricity continue to be ensured” (DB 2015). The GreensreceivedparliamentarysupportfromTheLeft,whichalsoinvokedtheguidelinesoftheEuropeanCommissioninitsmotionforaresolutionontheabolitionoftenders,arguingthat “the change in remuneration to tenders threatens to destroy the diversity of thestakeholderstructureforrenewableenergies,includingsmaller,regionalinvestorslikecommunity energy cooperatives and municipalities, and instead lead to a marketconcentration of numerically fewer large-scale transregional investors” (DB 2016). Inotherwords,theentireoppositionintheGermanBundestagvigorouslyobjectedtothebillamendmentsintroducedbythereigningCDU/CSU/SPDcoalition. Butinspiteofpriorexperience,expertrecommendationsincommitteehearings,andpoliticalpressurefromtheopposition,theCDU/CSU/SPDmajorityintheBundestagmaintaineditsground,callingtheCommission’sdeminimisregulation“notsound,sinceitalsocoversmanyactorsthatarenotsubjecttoprotectionwithintheframeworkofthetender. A considerable number of large developers are also building and developingwind parks with fewer than six plants. Relevant parts of the market could thus falloutsidethecompetitivedeterminationoftheaidamount.Thiswouldbecontrarytothegoalsofintroducingtenders.Furthermore,thereisreasontofearthatwindparkswouldbe strategically sized; this could lead to a situation in which good and economicallyefficientpotentialfordevelopingwindenergyisnotexploitedorlargerwindfarmsarestrategicallydividedintoindividualcompaniesandthusbidders”(BMWi2015). Somerepresentativesoftheoldenergysectorhavemadesimilararguments.TheGermanAssociationofEnergyandWaterIndustries(BDEW),forexample,thelobbyingarmoftheoldenergyindustry,dominatedbyenergyoligopolists,supportsthefederalgovernment’s decision. For the BDEW, “the introduction of tenders represents a realstep towards market integration of renewable energies, because market integrationmeansnotonlyreactingtothepricesignalsofthegeneralelectricitymarkets,butalsodetermining electricity production costs (full costs) in competition.” The BDEW thuscalls for an “abolishment of exemption limits or at least a drastic reduction” (BDEW2016). ThattheBDEW,lobbyofthefossilandnuclearenergyindustry,hasaparticularlylargeinfluenceonpolicycanbeseenfromtheresponseoftheGermangovernmenttoarecent enquiry of The Left faction in theBundestag. The old energy giantsRWE, Eon,Vattenfall,andEnBWarebyfarthemostfrequentlobbiestovisittheFederalMinistryforEconomicAffairsandEnergyandtheFederalChancellery.Bycomparison,therehavebeen far fewer appointments with representatives from the renewable energiesindustryinrecentyears(Kreutzfeldt2017). InGermany, then, the recommendations of theEuropeanCommission (and thefossil andnuclearenergycompanies) fora systemchange towards tendersareon the

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wholebeing followed,while thepossibility forexemptionregulations toprotectsmall,financiallyweakeractorshasbeenignored,despitepoliticalpressure.3.Maineffectsofabandoningfeed-intariffs The following discussion will (a) show that many potential actors are beingexcluded from participating in the development of renewable energies, (b) examinemorecloselythepaceofdevelopment,and(c)revealthemythofthetenderingmodelasthe best instrument for long-term cost reduction. It will conclude with concreterecommendations for strengtheningadecentralisedapproach to theenergy transitionsothatafuturewithoutfossilfuelsornuclearpowermaybeachieved.Thediscussionisdeeply influenced by experience of theGerman energy transition,which has played apioneeringroleintheinternationalcommunity. In1990,GermanywasoneofthefirstcountriesinEuropetoimplementfeed-intariffs and successfully promote renewable energies. After the introduction of theRenewableEnergySourcesAct (EEG) in2000,Germanyattainedakindof rolemodelfunctionintheworld.Indeed,thefoundationsforthesuccessfuldevelopmentandcostreductionofrenewableenergiesaroundtheworldwereinitiallylaidbyHans-JosefFellinhis1999issuepaperfortheGreens,whereheproposedprinciplesforfeed-intariffsthatwouldeventuallybeincludedintheEEGandimplementedinGermanyforthefirsttimeanywhereintheworld(B90/Grüne1999).3.1.Actors Oneof themainarguments in favourof fixedpremiums is that theyenable fairopportunities for active participation in reaching the goal of 100 percent renewableenergy for every possible actor, whether citizen, local community, medium sizedcompany, or multinational corporation. The same cannot be said of tenders, whichdeliberatelyexcludemanypotentialparticipantgroups(WWEA2016).AccordingtoanIASSreportoninternationalexperienceswithtenders,theparticipationofsmallactorsis very unusual (Bayer et al. 2016). Strict requirements, financial hurdles, anddiscriminatoryframeworkconditionspreventmanypotentialactorsfromsubmittingabidatall.Theconsequence isaseemingly freemarketthat is in factmarkedbyunfairconditions, limited to a small number of participants, and an even smaller number ofbeneficiaries,mostofwhicharealreadywellestablishedcompaniesorlarge,financiallypowerfulcorporations(Farrell2010). Asonestudyhasshown,projectsinSouthAfricatendtobeverylarge,whichhasalreadyledtoaconcentrationofaveryfewindustryplayersonthelocalwindmarket(Eberhard&Kåberger2016). Lessons could already be drawn from the first round of tenders in Germany’ssolar sector inApril 2015 (Fig. 1).A total of25winnerswere selected from170bidssubmitted,andnotoneofthemwasacitizens’cooperative,othertypeofcooperative,orindividual project. Instead, all selected bids originated exclusively with majorcorporationsandprofessionalprojectdevelopers (GmbH&Co.KG,GmbH,AG/SE).Anabruptendwastherebyputtothefederalgovernment’smuchvauntedactordiversity.

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The results of the second round of tenders a few months later confirmed the trend(AURES2015).

Fig.1: Comparison of participating actors in the first round of tenders for the German PV sector. AURES(2016),basedondatafromtheFederalNetworkAgency2015.

Withahandfulof exceptions,newcomersandcitizens’ initiativeshavevirtuallynochanceinthetenderingmodel.Europeiscurrentlyhometoabout3,000renewableenergycooperatives,orREScoops(Leidreiter2017),whichduringthefirstfourcallsfortender for solar plants in Germany represented amere 0.22 percent of the proposedoffersbasedoninstalledcapacity.

Inparticular, it is theriskofproject failureandtheassociated financialpenaltythatmakeparticipationinthetendersvirtuallyimpossibleforcitizeninitiatives(DGRV2015). Claudia Kemfert, German economics expert in the fields of energy andenvironmentalprotection (Kemfert2016), shares thisview.Similarobservationshavealso been made internationally – in Japan, for example, where many citizen energyprojects were denied access to the grid after a change in the feed-in tariff law (ISEP2017).

Anotherdisadvantageof tenders is that inspecial cases,bribesmaybea factorforrelevantdecision-makingbodiesorinfluentialindividuals.Large-scaleprojectswithhigh investment volumes through government tender are by nature more liable tocorruption than small, decentralised applications. Even when the entire processproceeds in an orderly and corruption-free manner, a non-transparent process cannever lead to the same level of acceptance as a consistently accountable aid conceptopentoallpossibleactorssuchasthefeed-intariff.

Aprimeexampleofsocialcommitmenttotheexpansionofrenewableenergiesisthecitizens’projectWindparkZeewoldeintheNetherlands.Here,morethan200peoplehavejoinedforcestocreateamegawindparkwithatotalof93turbines,aninvestmentvolumeof400millioneuros,andatargetoutputof1,000MW(Morris2017).Toputthe

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dimensions into perspective, consider that the country’s total installed wind poweramounted to 4,328 MW in 2016 (WindEurope 2017), while the largest facility inneighbouring Germany, the Stößen-Teuchern wind park, boasted just 177 MW totaloutput.ThemammothprojectwasmadepossibleaboveallbythepersistentwilloftheDutch people. The Dutch government, through its Stimulering DuurzameEnergieproductie (SDE+) program for expanding renewable energies, is helping toensure that the community project remains economical. State support in this caseoperates by means of dynamic subsidies to balance electricity generation prices andcurrentmarketprices(NEA2017).Thisisnot,however,aclassicfeed-intariff,sincetheSDE+ defines a fixed annual budget for all renewable energies, with the annual totalalways determining the budget cap for all renewable energy producers. Bidderscompete for thesurchargeson thebasisof theirelectricityproductioncosts.AsDutchwind turbine manufacturer Henk Lagerwey reports, a drawback to this approach totenderingcanalreadybeseen.“InthefirstyearsofSDE,thebudgetwasusedupquicklyforlargeprojects,”hereports.“Butmanyoftheseprojectshavestillnotyetbeenbuilt”(Bah2015).

TheDutchexampleshowsclearlythatitwasnotstatetendersthathelpedgetthelargecivilianenergyprojectofftheground,butratherthepoliticalandsocialpressurebroughttobearbythepeoplethemselvesinordertoreceiveadequatesupportfortheircivicinvestment.

It’struethatinthelastroundofGermantendersforland-basedwindfarms,93percentofthebidswenttocitizens’energycooperatives(BNetzA2017b),butthiswillremaintheexception,nottherule.Manyofthecivilianprojectsthistimearoundwere,afterall,alreadyhighlyadvanced–they’dbeenworkingat localwindfarmsfora longtimeandcouldnolongerbeimplementedundertheoldEEG.Buttherewillbefewerandfewer cases like this in the future, since there are virtually no new citizenwind parkstart-ups–thehurdlestoparticipateintendersaresimplytoohighfornewlyfoundedciviccooperatives.

These tendering results provide amore accurate evidence of the slowdown inandreductionofinvestmentvolumes:256bidsover2,137MWweresubmitted,butonly70offerswith807MWwereawardedcontracts. Inotherwords, feed-intariffs leadtosignificantlyhigherexpansionvolumes,whichareimperativeforclimateprotection.Thewillingnessandcommitmentofmanyactors,someofwhomarechampioningtheenergytransitiononavolunteerbasis,werebitterlyunderminedby thenon-allocationof thebids.Onlysomewilltryagain;manywillgiveupindisappointment.Insixfederalstates,eithernocontractswhatsoever(e.g.inBaden-Württemberg)orjustafewcontracts(e.g.justtwoinBavaria)wereawarded(Dehmer2017).Insomestates,inotherwords,windpowerexpansionwillbestoppedaltogetherforthemomentanddrasticallyreducedinthefuture.

These experiences demonstrate that it is much more difficult for small actorssuch as citizens’ energy cooperatives to participate in the development of renewableenergies under the tendering model – despite the fact that, as the Dutch example of

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Zeewoldeandthemassiveparticipation in the lastGermantenderingroundshow, thewillandcommitmentofthepeopleisthere.

3.2.Paceofexpansion A national government guarantee to financially support any type of renewableenergy production for a period of time by means of fixed feed-in tariffs generatessecurityandtrust.Investmentinrenewableenergiestherebybecomesnotarisk,butasolid investmentwith calculable returns. And yet governments are pushingmore andmore for tenders, primarily, it seems clear, to protect the stock of fossil and nuclearplants. By introducing tendering requirements, the state can freely control theexpansionof renewable energies and thus sustain theuseof theold coal andnuclearenergycarriersmore than isecologicallyandeconomicallysensible.Thestate therebybecomes the driving force of the economy,with a pure and furthermoreunsuccessfulplannedeconomyas the result.Accurate targetquantities aredefinedanddistributedthroughstatetendersratherthanlefttomarketforces,andthefreemarketeconomyisbasicallyoverridden–theexactoutcomethatallmajorpoliticalpartieswanttoavoid.

All this is highly reminiscent of China’s Five-Year Plans for economicdevelopment.Buteven theChinesegovernmenthas recognised that feed-in tariffsaremorepromisingthantenders.Indeed,theintroductionofsuchtariffsfortheexpansionofwindpowerplantsinChinaledtoasignificantexceedingoftheexpansiontargets.Italso ensured the introductionof a feed-in tariff forphotovoltaics in2011 (Fell 2012).Chinamay currently be experiencing a shift towardsmore tenders, but only for largeprojects;thisyear,asannouncedinthecurrentFive-YearPlan,about30percentofthetargeted18.1GWexpansionofsolarphotovoltaicswillbedistributedthroughthestateallocation system,while feed-in tariffswill be further cutwith the goal of potentiallydoingawaywiththemaltogetherby2020ifgridparityhasbeenachieved.Inthecomingyears however, the Chinese government will retain feed-in tariffs for most plants inorder to achieve its solar energy target of 110 GW by 2020, mainly because it hasrecognised thatpromotingdecentralised facilities accelerates theoverall expansionofrenewableenergies(Haugwitz2016). Manydevelopmentcostsandlabourhoursarelostwhenabidisrejectedunderthetenderingmodel.InthefirstGermantenderingroundof2017,almost70percentofthebidswererejected, inspiteof lowprices,becausethelimit imposedbythefederalgovernment on the expansion of photovoltaic plants was significantly exceeded. Inaddition to stranded investment costs, this model thus also leads to a significantslowdownofrenewableenergyexpansionbecausecapsaresetfartoolowcomparedtotheavailableinvestmentfunds. Ironically,theoppositeissue–targetssettohigh–isalsoproblematicand,inthecaseoftoofewbids,couldresultinthescrappingofentireprojectssothatnotasinglefacilityisbuilt,aswasthecasewithIndianelectricityproviderTANGEDCO. AndreasWagner from theGermanOffshoreWindEnergyFoundationdescribesthe tendering model for sea-based wind turbines as “cold expropriation” (Wagner

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2017).Duringthefirstroundoftendersin2017,successfulbidswerealmostexclusivelythose with zero cent per kilowatt hour subsidy support (BNetzA 2017a). Industryexpertsareextremelyapprehensiveaboutthisdevelopmentandseeproblemswiththelegislation. Given the virtual elimination of subsidies, they consider the chances forrealisation of the selected projects very uncertain. Once they’ve secured the rights toplant construction, companies can spend the next few years decidingwhether or nottheywanttousethoserightsorsimplyletthemexpireunderunfavourableconditions.This“blockadestrategy”slowsdownthedevelopmentofrenewablesevenfurther,sinceit increases the likelihood that only a fraction of projects will actually ever beimplemented.Facilitieswillonlybebuiltifitiseconomicallyworthwhiletodoso,whichwill only be the case if costs fall further and/or stock prices rise (Falkenhagen 2017,Meyer 2017). No wonder the president of the German Wind Energy Associationdescribestendersas“highlyspeculativeinstruments”thathavesupplantedthe“reliableinstrumentoftheEEG”andcanonlybeusedbylargecorporations(Albers2017). Inaddition,uncertaintystillremainsastowhetherornotdeveloperscandeliverwhattheypromisedintheirbids.TheIASS,forexample,hasfoundthatonlybetween14and41percentofallprojectsawardedthroughtendersinBrazilandSouthAfricawerecompletedaccordingtothegiventimetable–andthatonlybecausefinancialpenaltiescouldbeincurredincaseoflapse(Bayeretal.2016).Butthethreatofpunishmentaloneis no guarantee for project realisation. Case studies have shown that comprehensivecompletionofprojectsisonlyrarelyachieved,anddelaysarenotisolatedcases.ThusinFrance, Italy,andBrazil, forexample, less thanhalf theplannedprojectshaveactuallybeenimplementedwithintheindicatedtimeframe(AURES2016). Throughtenders, thepossibilities forexpandingrenewableenergiesare limiteddependingonpoliticalwill,which thwarts the transformationof theenergysystem to100percentrenewablesources.Maximumtargets,particularlywhenthey’resetlow,arenoteffectiveinstrumentsfortheexpansionofrenewableenergies,butratherprotectionmechanismsforinvestmentsinfossilandnuclearenergyproduction(Fell2013).3.3.Comparisonofcosts Advocates of the tenderingmodel argue that theirmethod leads to thehighestpossible levelof competitionandconsequently to the lowest costs (BDEW2016).Thequestion remains, however, as to whether the change from private to public tendersactuallyleadstolowercosts.

ItisoftenoverlookedthattendersarealsoissuedundertheGermanEEG–notbythepublicauthorities,butbytheprojectoperatorsofgreenpowerplants–andthatthisisadecisivefactorforinnovation,leadingtocompetitionamongplantprovidersforthebest technologies and cost reductions without limiting the total sales volume ofelectricity (Fell 2013). The EEG, in other words, has done much more to promotecompetitionandfreemarketeconomicforcesthandopublictenders,whosecriteriaaredeterminedbystateofficialswhoaren’tatentrepreneurialrisk.

Indeed, renewable energies have experienced an extreme price decline in thepastfewdecadesandarenowcheaperthanconventionalenergysources;therehasbeen

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asignificantcostreduction fordecades.EnvironmentalengineerUweNestleofEnKliPhas shown that since early 2004, the ongoing cost reduction for free-standingphotovoltaicplantshasoccurredexclusivelybymeansofpromotionthroughfixedfeed-intariffs(Fig.2).

Fig.2: Comparison of the reduction of EEG remuneration for electricity from photovoltaic systems resulting fromadministrativedecision(until theendof2016)andresultingfromtenders(forplantsput intooperationfrommid-2016onwards).Itisassumedthatsuccessfulprojectsgointooperationanaverageof15monthsafterwinningabid(ownaccount),Nestle(2017). The high costs of the early days of promoting the technology have long beenovercome–withouttenderingmodels,noless.Sincepriceshavealreadybeenfixeduntillate2018,thedirectcomparisonalsoshowsthatinbothcases,insofarasproviderskeeptheirpromises,acontinualdropinpricescanbeobserved.Putanotherway,thereisnoadvantage or faster reduction in costs achieved through public tenders compared tofeed-intariffs.

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Fig.3: Comparison of the reduction of EEG remuneration for land-basedwind energy installations resulting fromadministrativedecisionandthereductionofremunerationforground-mountedphotovoltaicsystemsresultingfromtenders. It isassumedthatsuccessfulprojectsgo intooperationanaverageof15monthsafterwinningabid(ownaccount),Nestle(2017).

A direct cost comparison (Fig 3.) of ground-mounted photovoltaic systemspromoted through fixedcontributionsand land-basedwind farmsestablished throughtendersshowsnodiscernibledifference:thecostcurvessinkatalmostexactlyidenticalspeeds. This is easy to explain. Cost reduction proceeds along the so-called learningcurvealongwithtechnologicaladvances;afterthat,thepricesofthenewtechnologyfallwiththesizeof themarketvolume.Priceswill thusalso fall inamarketsupportedbyfeed-intariffsbecausemarketparticipantssearchamongthemselves for thebestcost-benefitratiobywayofprivatetenders.Thiseffectcan’tbeachievedtothesameoptimaldegree though a public tender as it can under free market conditions since publictenders aredesignedbypublicofficialswho, aspreviouslymentioned,donot takeonanyentrepreneurialrisk.

A similar view is taken by other researchers who tend to attribute the costreductionexclusivelytofallingtechnologycostsforrenewableenergiesinrecentyears(Toke2015).The IASSconfirms thisconjectureandseespricealoneasan insufficientindicatorformakinganinformedstatementastowhetherornottendersreallyleadtolowercostsinthelongterm(IASS2014).

When considering large and mega projects, however, tenders can represent asensible option (Grau 2014). This is confirmed by India’s Council on Energy,EnvironmentandWater,whichisplanningtointroducetenderingforfuturelarge-scaleprojects while simultaneously maintaining fixed remuneration for decentralisedapproaches, such as roof-mounted solar systems in several regions of the country(Chawla2017).Formore innovative technologiesnotyet ready for themarket– tidalsystems, for example – fixed feed-in tariffs currently offer the greatest incentive fordevelopment(Hinrichs-Rahlwes2017).

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Quotas and state tenders aremethodsof a planned economy that donot bringwiththemanysignificantsuccessesfortheexpansionandcostreductionofrenewableenergies. Cost reduction is achieved only through advances in technology along thelearning curves developed by Winfried Hofmann, also known as “price-experiencecurves” (Fraunhofer ISE 2017). According to these, investment costs drop with anincrease in globalmarket volumes,meaning that tenders not only fail to promote thedesireddropinpricesforrenewableenergies,butactuallyhinderitinsofarastheyleadtoreducedmarketvolumescomparedtofixedfeed-intariffs.4.Conclusionandrecommendations4.1.Ensuringstakeholderdiversityforademocraticanddecentralisedexpansion Fairnessisonemainreasontoimplementtheenergytransitioninadecentralisedway; rationality is the other. A decentralised solution is both economically andecologically more efficient given the steadily falling costs and more or less equallydistributed wind and solar potential across different areas of a country. With shortdistances, unnecessary transmission costs and losses are avoided. A great number ofsmall projects also add up fast and gomore quickly into the grid than large projects(Farrell 2010). Furthermore, many developing countries are heavily dependent ondecentralisedsolutionsforprovidingtheircitizenswithenergy(Gsänger2016).

Through tenders, a large portion of profits inevitably goes to transnationalcorporations rather than local companiesor citizens’ energy initiatives; this results innegative attitudes towards the expansion of renewable energies. Directly involvingcitizens makes them direct beneficiaries of renewable energy development and isproven to lead to a higher level of societal acceptance. This was precisely the greatsuccess of the German energy transition in its early days – the commitment andenthusiasmofthepopulation(Risse&Herold2017). Asuccessfultransitionto100percentrenewableenergywon’tbemarkedsolelybythefastestpossibleimplementationofthebestandmostefficienttechnicalsolutions.Asuccessfultransformationismorethanthat–itmustalsobeacceptedandsupportedbythemajorityofsociety.Andpeoplearemorelikelytoacceptchangewhentheyprofitfrom it directly, whether through financial incentives, job creation, or expandeddemocraticvoice(Gsänger2016).4.2.Furtherincentivesnecessary:gridintegrationandsectorcoupling Therapidexpansionofrenewableenergiesrequirestherapidimplementationofgrid integration – fluctuation compensation bymeans of sector coupling and storage.Thecurrentlegislationinmostcountriesdoesnotprovideenoughincentivestoachievethis end. Tenders only incentivise isolated investment in solar parks, wind parks, orbiogasplants,when in fact, thenecessary interplay invirtualor real combinedpowerplants could and should be organised through combined investments in renewableenergies. Studies conducted by the Fraunhofer Institute for Solar Energy Systems ISE inFreiburg (Henning & Palzer 2010) and IWES in Kassel have shown “that a safe and

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stable power supply for Germany based 100 percent on renewable energy sources istechnically feasible in the future”and that “asa resultof coupling incombinedpowerplants,theroomformanoeuvreforrenewableenergiesisexpandedtoensurenetworksecurity”(Fraunhofer2014). Inordertoachievethis,however,legislativeincentivesforinvestorsareneededthatpromotenotonlyfundingforresearch,butalsomarketpenetrationforcombinationsolutions. A combined power plantwould create a breakthrough for grid integration.Comprehensive,highly innovativesolutionsadaptedto localconditionswouldemerge;local, fully grid integrated, 100 percent renewable energies would branch out in ahoneycombshapeandachievefrombelowtheself-organisingconversionofallenergysectorstorenewables.Giventhattheymuststipulatesomanytechnicaldetails,tenderscannottriggerthissocialdynamicinthesamewaythatfeed-intariffsalreadyhaveinthedevelopmentoftechnologiesforindividualrenewables. A combined power plan remuneration is the key to achieving decisiveadvantages;itcan,forexample,significantlyrelievedecentralisednetworkexpansionofnetworkfeesattheregional levelandincreasethesecurityofthepowersupply.Sincecombinedpowerplantsthemselvescanprovidesystemservices,newinvestmentsinthenetwork operators’ system services will be reduced, which will also help reducenetworkcosts.Inaddition,theintegrationofexistingEEGfacilitieswillrelievetheEEGcoffersandreducecostsfortheprovisionofoldcoalandotherpowerplants.

Another important factor here is that small investors such as citizens’ energycooperativesareabletocontributeinthisbusinesssegment.Thatmeansthatnotonlywillregionaleconomiesbestrengthened,butsocietalacceptanceforrenewableenergieswillgrowandtheexpansionofrenewableenergiesbefurtherdemocratised.Promotingthiscombinedapproach is thus justas importantaspromoting thevariousrenewableenergy technologies individually.A fixed compensationof ten centsper kilowatt hourseems appropriate for plant investments (Fell 2016). The conditionmust be that theinvestorcoverseveryhourofelectricitydemandeverydayoftheyearexclusivelywithrenewableenergies.Thiscanonlybeachievedwithelectricityandheatstorage,aswellaslinkingupwiththeheating/coolingsectorande-mobilitysector. Recent approaches by the federal government to identify and remunerate alimited number of medium sized cogeneration facilities and innovative cogenerationsystems via competitive tenders starting in 2018 are far from sufficient. Reliable andfixedgovernmentremunerationwithnovolumecapisrequiredinordertoachieverealresults.Thatcanmeanonlyacombinedpowerplant remunerationaspartof theEEGthatprovidesfixedfeed-intariffsforcombinedinvestments.4.3.Summary&concreterecommendations All future tenders and auctions for small andmedium sized renewable energyprojects up to at least 40MW should be abandoned as soon as possible. At the sametime,asystemofmodernisedfeed-intariffsmustbedevelopedastheprimarytoolofREpromotioninordertoacceleratetheexpansionofrenewableenergiesto100percentby

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2030 in the spirit of true climate protection and in order to ensure the possibility ofmeetingthe1.5°Cor2°CParisgoal.

Good legislative implementation is of crucial importance here. The variousenergysourcesmustbeintegrated,long-termreliabilitymeasuresimplemented,regularand transparent audits executed, incentives for innovations, scalability, and costreductionscreated,andareasonablereturnoninvestmentguaranteed.Inaddition,theremuneration program introducedmust be easy to administer and adaptwithout toomanybureaucratichurdles (Hinrichs-Rahlwes2017).Bureaucratichurdles arepart ofthe very nature of tenders; if funding is coming fromgovernment subsidies, the statemustprovetothetaxpayerthatthefundsarebeingusedappropriatelyandeffectively.Thisinevitablyleadstoavarietyoftechnicalandeconomicrequirementscoupledwithhighbureaucraticconsequences(Fell2013).

Theobligationtotenderforprojectsunder40MWhasaseriousnegativeimpact.Ontheonehand,itfurtherjeopardisesclimateandenvironmentalprotection.Everydaythatnuclearandcoal-fuelledpowerplantsremaininthegrid,additionalsafetyrisksaretaken and greenhouse gasses released, further threatening the flora and fauna of ourplanetandacceleratingclimatechange.Withregardtoactordiversity,thelargemajorityof SMEs, energy cooperatives, and private individuals are categorically excluded fromparticipating in the expansion of renewable energies. The high financial risks anduncertainties mean that only large corporations and well established companies canparticipate. The desired democratic character of the energy transition is therebycompletelylost.Fewparticipantswillfightfortendersinthefuture,andevenfewerwillremain standing. The cementation of oligopolieswill no longer be stoppable andwillfurtherleadtodecreasedcompetition.

All of this is also directly related to poverty reduction,whichwould be largelysuspended should the current policy be continued. In addition, the acceptance ofrenewable energies in the population will continue to decrease with increasingoligopolyformation.Assoonasonlyafewpeoplebenefitwhilelocalpopulationsareleftbehindandnolongerinvolvedintheenergytransitionbymeansofenergycooperatives,the resistance to wind turbines and solar facilities will grow. Even today, it can beobserved in Germany that total investment volumes in ground-mounted PV facilitieshavebeendrasticallyreducedsincetheshifttotenders.Privateengagementisdecliningas the opportunities for investing in small decentral projects diminish, which isespeciallydetrimentaltothegoalsofgridintegrationandsectorcoupling.

Around the world, more than 50 countries have committed themselves toconvertingtheirenergysystemsto100percentrenewableenergies.Buttheywillnotbeable to reach this goal solely through tenders and the limited expansion volumesassociatedwith them.Asshown in thispaper, tendersmakesenseonly for large-scaleprojectsinordertopromotecostefficiencyforlargeplants.Butfixedfeed-intariffsmustbe maintained or reintroduced as the primary promotion mechanism for small andmediumsizedprojectsuptoatleast40MWincombinationwithadditionalinvestmentincentivessuchascombinedpowerplantremuneration.

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