“Green Schools” In the Province of Treviso Antonio Zonta Treviso Paving the way for self – sufficient regional Energy supply based on sustainable concepts and renewable energy sources www.manergyproject.eu
Feb 24, 2016
“Green Schools”In the Province of
TrevisoAntonio Zonta
Treviso
Paving the way for self – sufficient regional Energy supply based on sustainable concepts and renewable energy sources
www.manergyproject.eu
The Province of Treviso
• Inhabitants: 888.249• Area: 2.476,68 kmq• Density. 358,65 inhab./sq.km• 17th most populated
province in Italy 14th most densely populated
• 95 municipalities (of which 13 enclose High School buildings)
The buildings under management
Consistency of the patrimonies and the users
Typology BuildingsConsistency
[m2]
Thermal energy
[GWh/year]Users
School buildings
132 454.000 34,5 41.000
Office buildings
18 24.600 2,5 600
Total 150 478.600 37,0 41.600
Typology
• High School buildings, 41 schools, distributed in 13 municipalities in the Province of Treviso
• Office buildings concentrated in the new headquarters complex and in a few external offices.
The buildings under management
Operating cost before the project
Heating (winter) € 3.056.687,00
Maintenance € 2.737.313,00
Total cost per year € 5.794.000,00
Five years cost (adopted as the tender basis of the new service)
€ 29.005.259,00
The evolution framework
1999
2004
2011
2016
The Integrated Global Service
INTEGRATEDGLOBAL SERVICE
Attention to the interaction between user and building according to a sustainable vision
EPC: Energy Performance Contract with a minimum level of consumption reduction and sharing of economies(Shared Savings)
Reduction of operating costs and energy consumption
Improvement of the management procedures
CP: Communication Planoriented to the active involvement of users in pursuit of proper management-behaviour
pro/cons: incentive provided by the client to achieve certain goals and values of KPIsEvolution of Information System for the management of the service
OBJECTIVES SOLUTIONS
Implementation
After awarding of the contract, contractors translated the bid specifications into Green School project, which builds on the improvement of management procedures already established. It is proposed to initiate a transformation of school buildings through a combination of Technological Innovation and Social Innovation, to make schools more efficient and sustainable through a combination of innovative technologies, and active participation of citizens/users.
TECHNOLOGICAL INNOVATION
SUSTAINABLE technological interventions and installations in the belief that even without significant resources available one can do much
SOCIAL INNOVATION
Approach to new technologies and new forms of organization in which students/teachers - not merely play a passive role, but are ready to participate actively in the evolution of the whole building and it’s facilities, also through the use of network , and all the innovations in communications, in order to make technology a tool as functional as possible to the social as well as economic development
The Green School project
Technological Innovations
4 SOLAR THERMAL SYSTEMS, STOT=300 sq.m
1 GEOTHERMAL HEAT PUMP SYSTEM
6 PHOTOVOLTAIC SYSTEMS POWER TOTAL OF 120 KW
2 COGENERATION SYSTEMS (Pe = 465 kWe Pt = 670 kWt)
RENEWABLE ENERGY SYSTEMS
SMART METERING
INSTRUMENTS TO REDUCE
CUNSUMPTIONS
CONDENSING BOILERS INSTALLED IN 19 BUILDINGS, RECONSTRUCTION OF
CENTRAL HEATING PIPING IN 7 BUILDINGS, NEW TEMPERATURE CONTROL
SYSTEMS IN 23 BUILDINGS, 8 NATURAL GAS SYSTEMS
ELECTRIC-ENERGY METER
THERMAL-ENERGY METER
SURVEY OF THE WATER CONSUMPTION
REDUCING LIGHT FLOW REGULATOR IN ONE SCHOOL BUILDING
4300 THERMOSTATIC VALVES IN 28 SCHOOL BUILDINGS
1700 WATERTAPS WITH TIMER OF CLOSURE
ICTSUPERVISION OF THE SYSTEM SMART METERING ACCOUNTING
MAINTENANCE MANAGEMENT OF THE PATRIMONY
RENOVATION OF THE PLANTS
Approx imate ly 4 .000 .000 ,00 €
invested by the contractor
-12% heat consumption
- 400.000 €/year
-1% electricity consumption
-2500 t/year of CO2
-70,8 % use of gas oil
Social innovation
Promoting the establishment of an Energy Team in each school. Using direct communication channels already present in the 2 generation. Finding and training Energy Officer of the Campus. Through the Energy Officer of the Campus, create formation of new Energy Team in the schools. Training continues in the Energy Teams
Economic bonuses to be distributed to schools according to participation. Competition for the distribution of bonuses
Smart metering as a liaison between the user and technology. Ability to measure at any time the level of consumption and thus the efficiency of the actions and behavior
New ECO web portal: a tool for communication, training and sharing dedicated to all citizens or users and to the diffusion of the project-model
TOOLS:
GOALS: Spreading the culture of energy saving and sustainabilityParticipation for the improvement of energy performance in the school buildings
Establishment of an Energy Team
EO 1EO 2
EO 3
EO 5
EO 6
EO 4
• Promoting the establishment of an Energy Team in the schools. Using direct communication channels already present in the 2 generation.
• Finding and training Energy Officer of the school. Through the Energy Officer of the school, create formation of new Energy Team in the schools, coordinated by a teacher and composed by the faculty, students and staff .
• Education continue in the Energy Team and through involvement of increasingly large segments of the school population
Competition for the allocation of economic bonus to be distributed to schools
Smart metering, connecting element between the user and technology
Users can check at any moment the effect of actions taken to save
The facilities manager has a tool to rapidly assess corrective and preventive action
Web portal
The functions of the new portal:• Managing maintenance operations, logistics (local
employment plan), technical documentation and certifications (functions already handled by the old portal)
• Energy management: real-time visualization consumption (Smart Metering), management of the Middle State Energy of the Patrimony
• Managing the competition and distribution of bonus/price
• Presentation of projects implemented by each institution in the field of energy saving
• Projects carried out by comparison with other institutions, both nationally and internationally (foreseen a section in English)
The results
EXPECTED:• Further 8% reduction in energy consumption due to the involvement of users (Qs)
• Increased environmental awareness among students about sustainability and multiplying effect given by the project due to the educational / pedagogical contribution
OBTAINED:• Involvement of the users in the management of assets with a specific Communication plan; constitution
of the first Energy Team• Rationalizing procedures and reducing operating costs with an economy, already determined by the
institution with an lowest bid of € 840,000 / year• Starting a redevelopment technology already underway aimed at a reduction of 12% in heat consumption
and 1% in electricity consumption (Qt)
The results
Objectives, developments, replicability of the model
The savings in management can improve the condition of the school buildings in terms of:• Quality of space• Safety• Further riduction of energy consumption
The model, although obtained through an evolutionary process, lends itself to be replicated, to an extent and at a time related to the maturity of the contexts.• Subjects responsible for managing school buildings in the Provinces of Treviso: 95 Municipalities, in charge of more than 400 school buildings, where similar
savings to those of the Province can be obtained
Goals for 2016 (end of contract): 20% reduced heat consumption20% reduced emissions
Possible further goal(with economies reinvestment) 20% more renewable energy sources
The schools
A thoroughly examination of the buildings have let to this action plan for technological interventions to be implemented at the schools.
Two examples on interventions
INSTITUTE
Interventions for the exploitation of renewable energy sources Technological requalification interventions Interventions for the remote
reading of energy carriers interventions
on water consumption
Construction of a solar PV
system
Creation of an air conditioning
system to geothermal heat
pump
Construction of a cogeneration
plant or traditional biomass
Trasformation for operation with natural
gas
Replacement of boilers
Remaking piping pipes in thermal
power plant and
substations
Completion of the
temperature control system
Installation of thermostatic
valves on radiators
Interventions for the remote reading of
consumption of solid fuel or gas
Interventions for the remote reading of electricity
consumption, inst. of equipment
x-meter
Installing timed taps of hot and cold
water terminals
A. Palladio PP_1 x X X X X X X X X
E. Fermi and Lab PP_2 X X X X X X X X X
Technological Innovation – Pilot Project 1 & 2
Actions that are currently being implemented
Expected benefits
Technological Innovation – Pilot Project 1 «the school A. Palladio»
Expected benefits by optimization of the existing plant and installation of a photo-voltaic panel system
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100% 100% 100%
80.00% 80.00%
54.00%
Valori iniziali Valori finali
Ridu
zion
i
Primary energy consumption Carbon dioxide CO2 Nitrogen oxides NOx
Initial target Final target
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100% 100% 100%
80.00% 80.00%
12.27%
Valori iniziali Valori finali
Ridu
zion
i
Expected benefits
Technological Innovation – Pilot Project 2 «the school E. Fermi»
Expected benefits changing from oil to methane gas plant and installing a geothermal plant
Primary energy consumption Carbon dioxide CO2 Nitrogen oxides NOx
Initial target Final target
The Province of Treviso headquartes
Every time we turn up the heat, the level of CO₂ emissions increases. Because heating is often produced using fossil fuels such as coal and oil. And the production process emits CO₂. The more we can reduce our dependence on fossil fuels, the more we can reduce CO₂ emissions.
1050 m² photovoltaic panels (200kW) and 1 biofuel plant (360kW)
When The Province of Treviso decided to allocate and renovate an existing building complex, it was agreed that alternative sources of energy would be utilized. 1050 m² photovoltaic panels were installed on a field, which together with the biofuel plants would be used to heat and produce energy to the buildings. And to minimize heat loss, a building automation system (BAS) was installed.
Cooling/heating from fossil fuels equal to that of 14 single-family houses
The solution above provides enough cooling/heating and energy for the 100,000 m³ building complex, that the amount of fossil fuels actually used is no more than it takes to cool/heat 14 single-family houses. The CO₂ accounts show some impressive results: The buildings emits approximately 807 tons less CO₂ pr. year.
Energy and cool/heat to 100,000 m³ of buildings using no more fossil fuels than 14 single-family houses (4,458 m³)
The Province of Treviso headquartes
Fuel consumption and emissions:
• Consumption of wood chips: approx. 5000 m³ per year
• Production ashes: approx. 110 m³ / year
• Gas equivalent: approx. 300,000 m³
• Greenhouse gas CO2 equivalent: approx. 700 t / year
• CO2 emissions to 5000 m³ of wood chips wood: approx. 70 t / year
• Reduction of CO2 emissions per year: 630 tons - Automated extraction ashes
• Reduction of CO2 emissions per year: 177 tons - photovoltaico panels
Heating and energy using RES = 807 tons/y less emission of CO2
Wood chips
Questions