The buildings sector contributes nearly 40% to global energy-related annual GHG emissions (IEA/UNEP, 2018). Final energy demand from buildings is predicted to increase 50% by 2050 compared with 2015 levels under business as usual scenarios due to rapid urbanisation and the doubling of the built surface area.
This GBPN report, which presents a global analysis of best practice renovation policies by an international network of experts, concludes that the required savings in the existing building stock can only be achieved with the widespread adoption and implementation of effective policy packages and support programmes that have a long-term target of achieving deep renovation.
Mainstreaming high-performance buildings could deliver a 124% return on investment globally through building-related energy cost savings by 2050 says a new comprehensive assessment study of the costs and benefits of low energy building pathways published by the GBPN in cooperation with the Central European University’s Center for Climate Change and Sustainable Energy Policy (3CSEP) and Advanced Building and Urban Design (ABUD).
A new scenario analysis demonstrates that a very aggressive residential building energy efficiency policy and market driven scenario in India can substantially reduce future energy demand in the sector. Following a business-as-usual scenario it is estimated that consumption from the residential building sector could rise up to 8 times.