Revision to take into account technological developments. Were integrated: Renewable energy integration; Ease of compliance; Passive building design strategies; and Flexibility for designers.
Energy conservation building code of 2017 has a requirement of 20-40% solar heating in cold climatic regions depending on the floorpace. IEA/IRENA Global Renewable Energy Policies and Measures Database © OECD/IEA and IRENA, [November 2020]