Viable Renewable Energy Projects - me.queensu.ca · 5 RETScreen® International Renewable Energy Project Analysis Software • Model flow chart • Simplifies pre-feasibility studies

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SESCI 2003 SESCI 2003 –– Kingston, OntarioKingston, Ontario

Presented Presented byby

Gregory J. LengGregory J. Leng

CANMET Energy Technology Centre CANMET Energy Technology Centre -- VarennesVarennes

Viable Viable Renewable EnergyRenewable Energy ProjectsProjects

Renewable EnergyRenewable EnergyHeating & Cooling TechnologiesHeating & Cooling Technologies

Biomass Heating

Solar Air Heating

Passive Solar Heating

Ground Source Heat Pumps

Solar Water Heating

Photo Credit: Waterloo Green Home Photo Credit: Grove Wood Heat

Photo Credit: Conserval Engineering Photo credit: TN Conseil

© Minister of Natural Resources Canada 2001 – 2002.

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Renewable Energy Electricity Generating Renewable Energy Electricity Generating TechnologiesTechnologies

Small HydroPhotovoltaicsPhoto Credit: SNC-LavalinPhoto Credit: Vadim Belotserkovsky

Photo Credit: Middelgrunden Wind Turbine Co-operative

Wind Energy


Other Commercial Other Commercial RE TechnologiesRE Technologies

•• Biomass: heat and powerBiomass: heat and power•• BioBio--gas: cooking, electricity, shaft powergas: cooking, electricity, shaft power•• Geothermal: heat and powerGeothermal: heat and power•• Landfill gas: heat and powerLandfill gas: heat and power•• Fuels: ethanol and Fuels: ethanol and

biobio--dieseldiesel

Photo Credit: David and Associates DOE/NREL Photo Credit: Gretz, Warren DOE/NREL

Biomass Co-generationAgriculture Waste Fuel Supply


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Emerging RE TechnologiesEmerging RE Technologies

•• SolarSolar--thermal powerthermal power

•• OceanOcean--thermal powerthermal power

•• Tidal powerTidal power

•• Ocean current powerOcean current power

•• Wave powerWave power

•• etc.etc.

Photo Credit: Gretz, Warren DOE/NREL

Photo Credit: Sandia National Laboratories DOE/NREL

Parabolic-Trough Solar Power Plant

Central Receiver Solar Power Plant


Project Viability Project Viability Depends on Several FactorsDepends on Several Factors


•• RE resource at project siteRE resource at project site(e.g. solar radiation)

•• Equipment performanceEquipment performance(e.g. solar absorptivity)

•• Initial project costsInitial project costs(e.g. solar collectors)

•• “Base case” credits“Base case” credits(e.g. conventional cladding)

•• Annual & periodic costsAnnual & periodic costs(e.g. vandalism)

((SolarwallSolarwall Example)Example)

Fort Smith Solarwall

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•• Base case system energy costBase case system energy cost(e.g. retail price of heating oil)

•• FinancingFinancing(e.g. debt ratio & length, interest rate)

•• Taxes on equipment & incomeTaxes on equipment & income (or savings)(or savings)

•• Environmental characteristics of energy displacedEnvironmental characteristics of energy displaced(e.g. oil, natural gas, grid electricity)

•• Environmental credits and/or subsidiesEnvironmental credits and/or subsidies(e.g. GHG credits, deployment incentives – Ouch!Ouch! )

•• DecisionDecision--mmaaker’sker’s definition of costdefinition of cost--effectiveeffective(e.g. payback period, ROI, NPV, RE production costs)

Project Viability Project Viability Depends on Several Factors Depends on Several Factors -- cont.cont.


Market Acceptance vs. Simple PaybackMarket Acceptance vs. Simple PaybackMarket Acceptance Curves

Market Acceptance vs. Simple Payback Data TableMarket Payback yr 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Residential % 100 95 65 40 25 10 10 5 2 1 0.5 0 0 0 0 0Commercial/Industrial % 100 71 45 26 12 4 2 1 0 0 0 0 0 0 0 0Government % 100 90 55 35 20 15 15 9 8 7 6 5 4 3 2 1

Version 2001 © Minister of Natural Resources Canada 2001. NRCan/CEDRL

Market Acceptance vs. Simple Payback

0

20

40

60

80

100

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Simple Payback (yr)

Mar

ket A

ccep

tanc

e (%

)

Residential Commercial/Industrial Other

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RETScreenRETScreen®® International International Renewable EnergyRenewable EnergyProject Analysis Project Analysis SoftwareSoftware

•• Model flow chartModel flow chart

•• Simplifies preSimplifies pre--feasibility studiesfeasibility studies

•• Only 12 points of data for Only 12 points of data for RETScreenRETScreen vs. 8,760 for vs. 8,760 for hhourlyourlysimulation modelssimulation models

•• Costs 1/10th the amount of other Costs 1/10th the amount of other evaluation methodsevaluation methods

•• Standardized procedures allow Standardized procedures allow objective comparisonsobjective comparisons

•• Increases potential for successful Increases potential for successful RE project implementationRE project implementation

Growth of RETScreen Software User BaseAs of April 30th, 2003

0

3,000

6,000

9,000

12,000

15,000

18,000

21,000

24,000

27,000

30,000

Months

Nu

mbe

r of

Use

rs

0

3,000

6,000

9,000

12,000

15,000

18,000

21,000

24,000

27,000

30,000

ROW

USA

Canada

May-98 April-2003

30,253+ RETScreen users worldwide

200 new users per week

In 196 Countries

6

19486

57

25381

342(Participants)

21

26

33

35

100%Total16%Financial Institution, Government or Multilaterals

12%Individuals or Other12%Project Developer/Owner

4%Association/NGO38%Professional Services

10%Education Institution or R+D Centre8%Profile of Participants: Product Supplier

With REDI, FBI, ANCCP & CIDA

Trainers (76)Partners (9)

New focus of training activities: “TrainingNew focus of training activities: “Training--ofof--Trainers” and Trainers” and Distance Learning for rapid expansion of capacity building efforDistance Learning for rapid expansion of capacity building efforts.ts.

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Under Development:Under Development:RETScreen Version 3.0 RETScreen Version 3.0

External Funding Partners:External Funding Partners:

•• Prototype Carbon Fund (PCF)Prototype Carbon Fund (PCF)at The World Bankat The World Bank

•• The United NationsThe United NationsEnvironment Environment Programme Programme (UNEP)(UNEP)

New Developments & Main Upgrades:New Developments & Main Upgrades:

•• Combined Heat & Power (CHP) ModelCombined Heat & Power (CHP) Model•• Metric/imperial unit switchMetric/imperial unit switch•• Sensitivity and Risk Analysis worksheetSensitivity and Risk Analysis worksheet•• Updated GHG model Updated GHG model to account for emerging rules under the Kyoto Protocolto account for emerging rules under the Kyoto Protocol•• UniversityUniversity--level training course, elevel training course, e--Textbook, case studiesTextbook, case studies•• ee--Marketplace and eMarketplace and e--Learning modulesLearning modules•• New or improved weather/resource databases with NASA, IEA Small New or improved weather/resource databases with NASA, IEA Small Hydro & UNEPHydro & UNEP--

GEF Solar Wind Energy Resource Assessment (SWERA) and updated prGEF Solar Wind Energy Resource Assessment (SWERA) and updated product oduct databasedatabase

•• CostCost--effective opportunities effective opportunities existexist

•• Project viability depends on a Project viability depends on a number of factorsnumber of factors

•• RETScreen is an annual RETScreen is an annual analysis with monthly resource analysis with monthly resource calculation that can achieve calculation that can achieve accuracy comparableaccuracy comparable to hourly to hourly simulation modelssimulation models

•• RETScreen makes it much RETScreen makes it much easier to consider RETs at easier to consider RETs at critically important initial critically important initial planning stageplanning stage

Photo Credit: Ross, Michael

Photo Credit: Price, Chuck

Parks Canada PV-Wind Hybrid System (Arctic at 81°N)

PV PhonePhoto Credit: Nordex Gmbh

600 kW Wind Turbine installation


ConclusionsConclusions

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FreeFree--ofof--Charge at: Charge at: wwwww.retscreen.netw.retscreen.netQuestions?Questions?


Viable Renewable Energy Projects - me.queensu.ca · 5 RETScreen® International Renewable Energy Project Analysis Software • Model flow chart • Simplifies pre-feasibility studies

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