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Considering risk-based regulation from energy services bottom-up approach towards Net Zero Energy House

The Technology, Management and Policy Graduate Consortium 2014 Meeting. Considering risk-based regulation from energy services bottom-up approach towards Net Zero Energy House. Hang Dao, Carlos Silva Instituto Superior Técnico , University of Lisbon, Portugal

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Considering risk-based regulation from energy services bottom-up approach towards Net Zero Energy House

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  1. The Technology, Management and Policy Graduate Consortium 2014 Meeting Considering risk-based regulation from energy services bottom-up approach towards Net Zero Energy House Hang Dao, Carlos Silva InstitutoSuperior Técnico, University of Lisbon, Portugal Aalto University, Finland

  2. What is NZEH? |weighted energy supply| − |weighted energy demand| = 0

  3. Energy consumption in buildings Total annual final energy use – residential and commercial building 31% of global final energy demand • 1/3 of energy-related CO2 emissions • 25–33% of black carbon emissions

  4. NZEH in Portugal? EU Directive 2010: “requires all member states ensure that by 2020 all new buildings are nearly zero-energy buildings” How far Portugal can go for NZEHunder the current residential context?

  5. Residential energy services in Portugal Residential energy service: A description of energy end-uses • Heating & Cooling • Water heating • Lighting • Media appliances • Cooking Calculation • Portuguese regulation for low-energy performance housing • The Portugal national residential energy consumption survey • The monitoring project by smart-meter in Lisbon

  6. Residential energy services in Portugal • Better energy class are not the ones that consume less energy • Best energy class is not the best energy efficiency house

  7. Residential energy services in Portugal Results • The final energy consumption is lower than the maximum admissible consumption described in the regulation • Regulation might overestimate the duration using heating system in the real weather condition of Portugal (Energy use for space heating and hot water are only 5% and 22% of the nominal values obtained from the regulation)

  8. Energy-related consumption model in residential

  9. Risk-based regulation and stratergies in residential energy consumption • How could NZEH improve or encourage consumers on energy saving or to be more energy efficient? • Handle with the extreme variation of household energy consumption • Deal with uncertainties regarding consumer behavior intervention while shifting to NZEH

  10. Recommendations • Foster more robust bottom-up approach for energy-related behavior in residential sector • Empower people to participate in the regulation making process • Acquire what consumers need not from regulators • Structure the frame work assessment for different level of risk

  11. THANK YOU

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