USE OF BUILDING STOCK DATABASES IN POLICY DEVELOPMENT AND PROGRAM EVALUATION
Moderator: Philipp Degens, Energy Trust of Oregon
Evaluation is highly dependent on good, reliable, and accessible data. This is equally true for the evaluation of energy programs and policies. Evaluators typically will try to leverage as much available data, databases, and studies to support their evaluations. Existing data and databases may be preferred to collecting primary data in evaluations to keep costs down, the fact that some existing data cannot be reproduced or to shorten the time needed to perform the evaluation. This session focuses specifically on buildings databases and how they can be used to support effective energy program and policy evaluation.
The first paper constructs a building stock database from four separate studies for the German residential and nonresidential sectors. This database was used as an input to modeling software to generate energy profiles for nearly 4,500 buildings segments. A dynamic bottom-up simulation model evaluates the effects of three scenarios of economic and regulatory incentives for three different renovation packages. Results are presented visually through Energy Saving Cost Curves which communicate the energy savings and avoided energy costs following renovation programmes of the German building stock. The results show that under a range of realistic scenarios to 2030, the total economic energy saving potentials range from 60 to 170 TWh/y, and correspond to financial savings that range from 1.2 to 6.2 bn€/y. Energy Saving Cost Curves provide a means to compare the impact of different policy options from the perspective of the investor for different building categories, and can thereby feed directly into the design of renovation strategies -whether at national, regional or city level- taking into consideration economic parameters ranging from subsidies and energy prices, to transaction costs, learning curves and discount rates.
The second paper moves the focus south to Albania, Montenegro, and Serbia. In this case, residential building topologies developed by the Tabula/Episcope project were used as an input to bottom-up simulation models to assess the impact of decarbonisation policy packages applied to this sector. The models were prepared in co-operation with national policy-makers. The final models and input data were provided to the policy makers for further use and modification. Issues associated with partial heating and intermittent heating as well as uncertainties of wood share in the national energy balance are discussed. The models indicated that energy demand could be significantly reduced through building thermal retrofits, even with the models incorporating increased heating hours and greater thermal comfort. Both moderate and ambitious policy scenarios, which include building codes and financial incentives, may realize a large share of energy savings in all three countries. The results also provide guidance into what types of policies will generate the most cost-effective energy savings in this sector.
The third paper describes the development of the European Union (EU) Building Stock Observatory to monitor the improvement in the energy performance of buildings. This public data portal, to be launched in 2016, shall provide a comprehensive knowledge resource for policy makers, investors, industry stakeholders, energy utilities, local and national authorities and researchers to underpin decision making, financial and long-term strategic support. The EU Building Stock Observatory will be the key tool to monitor the improvement of the energy performance of buildings and its impact on the actual energy consumption of the sector in member states. The goal of the paper is to present the challenges and opportunities of setting up the Observatory. The EU Buildings Stock Observatory should become an important tool that supports member states in drafting and implementing their long-term renovation strategies.
PAPERS / PRESENTATIONS
Database Tools for Policy Development – Presenting Building Stock Renovation Programmes Potentials Through ESCC [paper] [presentation]
Filippos Anagnostopoulos, BPIE – Buildings Performance Institute Europe, Brussels, Belgium
Lukas Kranzl, Technische Universität Wien, Vienna, Austria
Jan Steinbach, Fraunhofer ISI, Karlsruhe, Germany
Dan Staniaszek, BPIE – Buildings Performance Institute Europe, Brussels, Belgium
Agne Toleikyte, Technische Universität Wien, Vienna, Austria
Building Capacity of Policy-Makers in South East Europe on the Modelling of Low Carbon Transformation of the Residential Building Stock [paper] [presentation]
Aleksandra Novikova, Institute for Climate Protection, Energy and Mobility, Berlin, Germany
Tamás Csoknyai, Budapest University of Technology and Economics, Budapest, Hungary
Zsuzsa Szalay, Budapest University of Technology and Economics, Budapest, Hungary
József Feiler, Regional Environmental Centre, Szentendre, Hungary
Role of the EU Building Stock Observatory in Evaluation of the Buildings Policies [paper]
Aleksandra Arcipowska, Buildings Performance Institute Europe, Brussels, BE
Francesco Mariottini, Buildings Performance Institute Europe, Brussels, BE