8 Wirgentius

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Published on February 20, 2008

Author: Wen12

Source: authorstream.com

Primary Resource Factor – for systematic evaluation of heating and cooling options:  Primary Resource Factor – for systematic evaluation of heating and cooling options What is PRF PRF of heating and cooling systems PRF and competitiveness Primary Resource Factor (PRF):  Primary Resource Factor (PRF) ENERGY EVALUATION Primary Energy Source Building Electricity 10 kWh Pellets 10 kWh Efficiency 40 % Pellet factory & transportation 1 kWh resource energy (Primary Resource Factor 0,1) 25 kWh resource energy (Primary Resource Factor 2,5) Energy saving investment (heat recovery system):  Energy saving investment (heat recovery system) Before 100 Heat loss (ventilation, etc.) District heat (PRF = 0,1) Electricity (PRF = 2,5) After: 70 and 10 additional electricity Whole energy chain taken into account Evaluation limited to building Cooling solution in building:  Cooling solution in building Cooling demand =100 District cooling (PRF = 0,1) Electricity (PRF = 2,5) Whole energy chain taken into account Evaluation limited to building Primary Resource Factor (PRF):  Primary Resource Factor (PRF) PRF sounds like a complicated term, but it provides a simple answer to the efficiency of heating and cooling systems. Calculation method is presented in a draft version of the European standard (Heating Systems in Buildings). The Standard will be part of the implementation of a Directive (Energy Performance of Buildings). Takes into account the whole energy chain and energy market. PRF defines the ratio between fossil energy supply and energy used in building. Excludes the renewable part of primary energy. Gives advantages to renewable energy but does not automatically lower factor. Only a renewable that replaces the fossil supply on the market receives a lower PRF. Fossil fuel supply provides a good estimate on CO2 emissions. Tool to compare the efficiency of different heating and cooling systems. PRF is not a scientifically “truth” and it does not need be. It is a tool to make heating and cooling market more efficient. PRF for different heating options:  PRF for different heating options Electric heating Oil or gas boiler Heat pump 2 1 DH (Coal CHP) DH (Gas CHP) DH (Biomass, waste incineration) DH (Waste heat) DH (Heat only boilers with fossil) PRF for different cooling options:  PRF for different cooling options 2 1 DC (Absorption; by waste heat) DC (Absorption; heat from CHP) DHC (Heat pump) Cooling with Chillers DC (Free Cooling) DC (Absorption; Biomass) DC (Absorption; Waste Incineration) PRF examples from Europe:  PRF examples from Europe PRF and CO2 emissions:  PRF and CO2 emissions Competitiveness and efficiency:  Competitiveness and efficiency Competitiveness on the heating and cooling market is the key to increasing the market share of efficient systems – customer’s choice. There should be free competition between different heating and cooling options. No special financial support, taxes or any other special regulation. No special treatment for heating and cooling options. Financial support, taxes or any other regulation should be based on the total efficiency of heating or cooling solution. Systems with low PRF value should not be disadvantaged by regulation Savings should not be financially supported, but regulation should support investments and customer choices that make the market more efficient. Should this type of energy saving investment receive financial support?:  Should this type of energy saving investment receive financial support? Before 100 Heat loss (ventilation, etc.) District heat (PRF = 0,1) Electricity (PRF = 2,5) After: 70 and 10 additional electricity Whole energy chain taken account Evaluation limited to building What type of systems should the regulation support?:  What type of systems should the regulation support? Electric heating Oil or gas boiler Heat pump 2 1 DH (Coal CHP) DH (Gas CHP) DH (Biomass, waste incineration) DH (Waste heat) DH (Heat only boilers with fossil) Market share of DH and DC:  Market share of DH and DC 1 % greater market share for DH in Europe: 35 TWh less fossil fuel supply (equal to yearly electricity production in Hungary) 10 million tons of CO2 (equal to yearly CO2 emissions in Luxemburg) 500 TWh cooling in Europe in the year 2018. DC market share 40 % compared to DC market share 10 %: 200 TWh fossil fuel supply (more than yearly electricity production in Benelux countries) 70 million tons of CO2 (equal to yearly CO2 emissions in Denmark or Ireland or Sweden) Next step:  Next step Goals for heating and cooling in Europe: decreased fossil fuel supply and reduced CO2 emissions. Generating savings or increasing the use of renewable energy in heating and cooling should not be the main focus. Savings or uses of renewable energy are only part of the solution to achieve reduced fossil supply and decrease in CO2 emissions. Efficiency evaluation should take into account whole energy chain and entire energy market. Assessment of energy performance shall not be limited to the buildings where energy consumption takes place. PRF is a tool to understand What kinds of systems really are efficient. What is the customer’s best choice. What kinds of investments make heating and cooling market more efficient. Allow free competition combined with regulation that supports efficient systems. Use energy, but use it in a smart way!:  Use energy, but use it in a smart way! PRF is a tool to find low fossil heating and cooling systems – greater market share for low PRF systems have a huge impact on fossil supply and CO2 THANK YOU! Let’s work together to make heating and cooling market more efficient. PRF does not make the market more efficient, it is only a tool. It’s up to all of us to make it happen! Don’t save energy – save resources!

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