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We have an excellent reputation in providing a wide range of climate-related services such as research, consultancy and education.
EERA - Energy Efficiency Resource Assessment Model and Database
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What is EERA?
The Energy Efficiency Resource Assessment (EERA) model and database is a tool to:
- Construct, analyse and compare end-use energy and greenhouse gas (GHG) emission scenarios for all economic sectors and energy types
- Evaluate and quantify the impact of projects on the energy use and GHG emissions of scenarios through changes in:
- Equipment stock and efficiency
- End-use energy type
- Supply energy type
EERA highlights energy efficiency opportunities by quantifying and comparing the energy and GHG savings of efficiency improvements and their economic viability.
Who needs EERA?
- Energy policy makers
- Energy supply and distribution industry
- Energy efficiency authorities
- Local and regional governments
- Energy researchers
- Energy performance contracting industry
- Environmental and other interested groups
- Energy users
How are EERA scenarios constructed?
- Energy use in EERA is defined in terms of equipment stock and energy intensity where:
- Energy demand = Stock*Energy intensity
- Stock = Sector activity*Stock per unit activity
- EERA uses historic and projected equipment stock, energy intensities and energy demand to construct and analyse energy-using scenarios.
How is the impact of projects quantified?
- Establish a reference scenario (Business-As-Usual (BAU), Frozen efficiency, etc.)
- Create a modified scenario by implementing project measures relative to the reference scenario
- Estimate and compare the effect of project measures as the difference between the reference and modified scenarios
How has EERA been used?
- Analysing energy-use trends of residential, commercial, industrial and transport BAU scenarios
- Developing Kyoto compliance scenarios
- Evaluating energy efficiency projects
- Comparing the economic viability of residential energy efficiency measures
- Evaluating the energy efficiency potential of the residential, commercial, industrial and transport sectors
- Evaluating the National Energy Efficiency and Conservation Strategy measures for the building, environmental, and industrial sectors of New Zealand
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