11. Energy performance

Transcription

1 11. Energy performance 11A. Current situation Nijmegen cooperates with companies, home owners, housing corporations, citizen initiatives and (knowledge) institutes on projects to save and generate energy. In the built-up areas as well as for mobility and public space. Total energy use Nijmegen The total energy of Nijmegen in 2014 was 3,238 GWh including mobility. Indicator Unit Year of data Energy end use 3,238,312 MWh 2014 Energy end use per head 19,236 kwh / head 2014 Energy end use per sector Agriculture & Fisheries 0 Industry & Commerce 19 Transport 20 Domestic 27 Services 19 Other 15 Total 100 % 2014 Historical development of energy use Figure 1 indicates the historical development of energy use and the socioeconomic development. In 2014 the urban energy use in the built-up area decreased by 15% compared to The number of residents increased by more than 7,000 people during the same period. Calculated per head, energy use has decreased by 18.7%. Energy demand [GWh] Energy demand and socialeconomic development Total energy demand Nijmegen Year Total enery demand business Total energy demand private sector Total residents Figure 1. Total energy use in the built-up are between (including public space, commerce and industry, excluding mobility) Total energy demand municipal buildings Total jobs Socialeconomic [amount]

2 Figure 2 shows the historical energy use of the municipal organisation. In 2014, compared to 2008, the municipal organisation saved 1.58 GWh (4.7%) energy by taking energy measures in the 76 municipal buildings. Structurally, the introduction of energy efficient public lighting is being implemented Total energy use municipal buildings and installations in GWh Savings compared to 2008 in % % % -5.65% 2.26% 6.28% 4.70% Total energy use kwh per m² Figure 1. Total energy use municipality of (in GWh) The energy use of the business sector (including industry) dropped by 17.3% (363 GWh) in the period. From 2010 the drop of energy use is stronger than the decrease of jobs. This indicates an effect of energy-saving measures in companies. The total energy use of private persons was 7% lower 2014 than in 2008, in spite of a 13% increase of the number of households. The average amount of energy saved per household was 17%. Energy situation, development and energy provision mix Currently, 7% of energy use in the built-up area in Nijmegen is generated locally and sustainably. In 2020 this will increase to 15%, through the realisation of wind park Nijmegen (2016) and later their solar park (2018). GDF Suez is closing its coal-fired power plant at the end of 2015 and will build a solar park, windmills and biomass plants (Green Delta ) Sustainable energy mix Cold Heat Storage solar energy wind energy biogas sewage plant biomass residual heat electricity from waste Figure 3. Sustainable energy mix of Nijmegen between 2005 and 2020

3 Integration of energy technology in municipal buildings and houses In total, 7.5 % of the total energy use of municipal buildings and installations is generated locally and sustainably. On roofs of municipal buildings there are currently 1,300 PV panels (total 221 MWh/year). In addition, a number of municipal buildings is connected to district heating (917 MWh) or use a CHP installation (1,260 MWh). Currently, households generate 1.4% of the total energy use sustainably (4,000 MWh of solar energy and 8,194 MWh by burning biomass) Development of city heat energy and CHP In March 2015 Nijmegen s district heating was opened by Minister Kamp of Economic Affairs. The installation of the first phase of the network cost 100 million, of which 93.5 million was invested by market parties. In the meantime, 4,000 existing houses have been connected to district heating (27,843 MWh). The aim is to extend district heating in the city and to connect it to the district heating of Arnhem. By 2020, district heating will provide 3.4% (now 0.8%) of the total Nijmegen energy requirement. Nijmegen has several major CHP installations (total 10,000 MWh). Nijmegen is also very suitable for thermal storage. In total, there are 15 larger open CHP installations in Nijmegen. By 2020 this will be expected to have increased to 20,000 MWh (now 78,000 MWh) on an annual basis. Application of innovative techniques Nijmegen is using LED lighting in public lighting, municipal buildings and car parks. Also, Nijmegen is stimulating the application of green roofs and facades via a subsidy for building owners who want to make their roof greener. The municipality is setting a good example (figure 4). Figure 4: Green roofs on town hall (installed second roof in 2009) Via Power2Nijmegen the city of Nijmegen is stimulating innovations, such as a mini fermenter for kitchen waste or the solar radar. Figure 5 shows the solar radar that was made by the Institute for Molecules and Materials of Radboud University. Innovative thin film solar panels are developed here. The aim is to rollout this solar radar regionally into a regional prediction system for solar energy. Figure 5: Solar radar on the roof of the Institute for Molecules and Materials of Radboud University

4 11B. Past performance objectives Environmental policy Environmental policy in Nijmegen has been on the political agenda since The city of Nijmegen has been drawing up four-yearly environmental policy plans and implementation programmes, as of 1992, in which the subject of energy was given a fixed place. In the coalition agreements as of 2010, sustainability has been a main theme of municipal policy. The current policy is laid down in the Sustainability Agenda ( ). The objective is to make Nijmegen an energy neutral city by 2045, with the intermediary objective being a realisation of 12% energy saving by 2015, 22% energy saving by 2020 (compared to 2008) and 15% sustainable energy generation by Own municipal organisation In 2008 the objective was set that the municipal organisation needs to be climate neutral by The additional objective of the organisation being energy neutral by 2030 was added in To reach our targets, we took the following measures: Since 2008 we have been purchasing regionally generated green energy for our own use, together with neighbouring communities. We are making our real estate more sustainable and are investing 2 million a year in this. This will later save us approx. 30% energy (9.81 GWh and kwh per m2), compared to The saved energy costs are directly used via a revolving fund to finance interest for investments. The Ministry of Foreign Affairs considers this financial strategy as best practice and is promoting it nationally. We have a programme to make the real estate of schools, sports clubs and non-profit institutes more sustainable. They are given advice, are unburdened and can take out sustainability loans. In 2008 the city began with projects to make public lighting more energy efficient, an annual investment of 2,500,000. The energy use of public lighting in 2014 decreased by 21% compared to Our entire fleet has been replaced these past few years by cars using biogas or electricity. For business trips we are making public transport, (electric) bikes and e-scooters available. For commuter traffic we are adopting a very strict authorisation regime for car parking and are stimulating bike use. We have laid down a policy for sustainable purchasing in our sustainability-ladder and are purchasing 100% sustainably. Residents We have arrangements with housing corporations on energy saving and sustainable generation of their properties (approx. 30,000 homes). By 2020 all homes of housing corporations will have on average at least a B-label. Housing corporation De Gemeenschap has made an existing rented house sustainable by converting it into an Active Warmth All Electric Zero-on-the-meter Home. It is a smart house with special insulation material (figure 6). The energy bill is 0 a month. Figure 6: Active Warmth All Electric House

5 Nijmegen has successful subsidy arrangements and provides sustainable loans for solar panels and energy-saving measures for home owners and housing corporations. We have been campaigning since 2008 to stimulate citizens to save energy via the Sustainable Living counter. More than 10% of home owners have taken energy saving measures for their homes. We are stimulating people to become members of the various Nijmegen energy cooperatives. The largest is WindPower Nijmegen with 1,600 members. 1,100 members bought wind shares at the end of 2015 (approx. 3.2 million) to help pay for the construction of four windmills. Finally, we are trying to make sustainable energy visible in public spaces and on striking buildings to raise awareness, by means of a solar train, solar panels on parking meters, schools and municipal buildings. Schools are paying a lot of attention to solar energy and sustainable energy. Companies Via the Environmental Management Act we are forcing companies to take energy-saving measures, of which the costs will be recovered in five years. This is why many Nijmegen companies are active in the field of energy saving and generating sustainable energy: In the Nijmegen energy covenant, companies and institutes have reduced 19% CO2 since The companies participating since 2008 have already realised a 36% CO2 reduction. In the energy transition programme Power2Nijmegen 250 participants are active on behalf of 80 companies in projects to make Nijmegen an energy neutral city. Apart from individual companies, notably business associations TPN-West and Nijmegen Zuid. In the Green Hub project, municipalities and companies are working on making mobility more sustainable together. Figure 7 and 8: Alderman Tiemens opens the solar farm at industrial estate BNZ on the Day of Sustainability Alderman Tiemens opened the solar farm at industrial estate BNZ on the Day of Sustainability (9 Oct 2015). Employees and visitors of the businesspark charge their electric cars with solar energy free of charge (figure 7 and 8). Over the past year, waste incineration plant ARN realised the connection of district heating and invested in a biomass fermenter for green gas from local composting waste. In addition, 800 PV panels have been installed on the roof. Sports events Zevenheuvelenloop and the Nijmeegse Vierdaagse are seriously investing in making their events sustainable. These past few years 100,000 has been invested in 15,000 solar panels on 16 schools. HAN University of Applied Sciences, Radboud University and the UMC invested in thermal storage and solar energy over the past few years. Recently, HAN opened the most sustainable educational building in the Netherlands in Nijmegen. Energy plant GDF Suez (ENGI) is working on a project to convert the site into a green energy delta (figure 9) after closing the existing coal-fired power plant at the end of The first phase, the realisation of a solar field that can generate 1 MW energy for 250 Nijmegen households, was recently completed (figure 10).Fout! Verwijzingsbron niet gevonden.

6 Dutch English Van kolencentrale Naar een geintegreerd duurzaam energieterrein Zonne-energie Biomassa Warmte Wind From coal-fired plant To an integrated sustainable energy site Solar energy Biomass Heat Wind Figure 9: Plans of energy plant GDF Suez (ENGI) Figure 10: Realisation of the first phase of the transformation of the coal-fired power plant of GDF Suez into the Green Energy Delta of Nijmegen

7 11C. Plans for the future Nijmegen wants to be an energy neutral city in By % sustainable energy generation will be feasible. By 2045, the sustainable generation of 67% of total energy use will be feasible. The rest of the required energy can be generated sustainably on a regional level. The sphere of action of energy transition is extremely dynamic and the innovative strength of the Nijmegen and regional network on sustainable energy is developing into an essential place of business factor. Objective Nijmegen wants to be energy neutral by We can achieve this by saving 50% energy and by generating the remaining 50% with local sustainable energy sources (figure 11). Figure 11: Possible scenario Nijmegen energy neutral 2045 Strategy In April 2012 the municipality of Nijmegen started the co-creation process Power2Nijmegen. Together, they drew up a route map ( Figure 12). All insight, proposals and projects of Power2Nijmegen are processed in the Implementation Programme Sustainability in Execution.

8 Figure 12: Route map Power2Nijmegen By 2020, 15% sustainable energy generation will be feasible. By 2045 sustainable generation of 67% will be feasible. This requires the realisation of at least 16 wind turbines, a million solar panels, 40,000 solar boilers, 11,000 homes connected to district heating and more use of CHP/heat pumps and regional biomass. The remaining 33% will come from the region (Figure 3). Figure 13: Share of generating sustainable energy per source Spatial energy plan Together with the main stakeholders (housing corporations, industrial estate managers and network administrator Liander) we are currently working on converting the Route map into a spatial energy plan. This indicates how districts can be made energy neutral and with which techniques. Together with market parties it is being examined which districts are viable for passive house renovation, for geothermal energy and in which districts a smart grid in combination with all-electric houses is possible. District heating District heating will go to at least 14,000 houses and companies between now and At industrial estate Nijmegen-West several business cases were recently drawn up to connect companies to district heating. District heating is also being connected to Arnhem. This results in regional district heating with various heat suppliers where by 2030, 90,000 homes in the Arnhem/Nijmegen region will be connected to district heating (figure 14). Figure 14: Rollout district heating: between now and 2020 district heating will be extended to at least 14,000 house equivalents in Nijmegen.

9 Over the next few years, Engi (GDF SUEZ) wants to invest in a biomass plant that can supply district heating. The citizen cooperative WindPowerNijmegen has plans to buffer the future surplus of wind energy in district heating (figure 15). With a local producer of solar collectors, the possibilities of supplying district heating with solar collectors are being examined. Wind energy Energy cooperative WindpowerNijmegen will be realising four of the five planned wind turbines in In addition, companies at TPN West have concrete plans to realise four to eight wind turbines of 2.5 MW each before 2020 in combination with a smart grid. For the period after 2020 there are possible locations where more wind turbines can be built. Figure 15: Plans for the future for connecting the provision of energy from WindPowerNijmegen to district heating Solar energy The intention is to seriously increase the area for solar panels in Nijmegen over the next few years: A think-tank has been formed of local engineers, bankers and lawyers that is focusing on business cases with which the rollout of PV on company roofs can be accelerated. Engi (GDF Suez) has a first field setup of 1 MW on its own site and wants to further extend this in the future. Energy cooperative WindPowerNijmegen has concrete plans to realise a 8.6 MW solar park around the windmills over the next few years. The municipalities in the Nijmegen region are jointly preparing a tender where they demand that the additional supplied energy as of 2018 can be generated sustainably in the region. This is taking shape in a solar park(s) of in total 30 MW, mainly on Nijmegen soil. From next year on, we will be offering our sustainability loan to non-profit organisations and companies for the investment in, among others, solar panels. Biomass Engi has concrete plans to realise two biomass plants (50MW) on the site of the coal-fired power plant in combination with a storage point for biomass trade by ship. Apart from generating energy from biomass, ENGI wants to work with companies in the future to produce high quality products from biomass via bio refinery. Thermal storage In our city several soil systems have been constructed at educational institutions, the Academic Hospital, and municipal buildings. Maps show whether the soil is suitable for soil energy.

10 Other measures that are influencing the total use of energy in the city: Nijmegen s business parks, united in the Economisch Collectief Nijmegen, will jointly make out a case for making all Nijmegen s business parks more sustainable. A strong movement of companies dedicated to realising a circular economy has been formed in Nijmegen. Currently, a regional scan is being created to clearly map out opportunities for a circular economy. From the Green Hub a strong bio-based energy cluster is being formed in the region around Nijmegen including parties such as Engi, ARN and Radboud University. In Nijmegen a strong bottom-up movement has been formed that focuses on stimulating a sharing economy. There is also a movement from the population that is dedicated to more local and regional food production via urban agriculture. An increasing number of commuters in Nijmegen uses their bicycle to commute. 11D. References Climate programme File available digitally. Framework memorandum Climate File available digitally. Sustainability agenda : Sustainability in Execution : Quick scan Strategische Notitie Energie en Klimaat, 2010: Route map Power2Nijmegen Towards an energy neutral city by 2045: Masterplan making social immovable property more sustainable. File available digitally. Policy plan Zicht op het Nijmeegse Licht : File available digitally. Opportunity map underground energy storage 2006: The Green Hub: Annual environmental reports : Files available digitally. Annual environmental report 2012: CO2 footprint of own organisation NEC 2008, 2009, 2010, 2011, 2012 Files available digitally. Energy in Beeld : (required login data) Presentation results Nijmegen Energy Covenant. File available digitally. Video Green Delta GDF Suez: Video Geef de Zon door :