The Energy Conservation Building Code (ECBC) was launched in 2007 as a voluntary code by the Bureau of Energy Efficiency for effecting energy efficiency in buildings. ECBC establishes minimum energy standards for commercial buildings having a connected load of 100 kW or contract demand of 120 KVA and above.

ECBC 2017 has been launched on 19 June, 2017 which includes measures for energy savings through suitable building construction parameters involving enhanced wall and roof insulation, efficient glass, efficient comfort and control system and appropriate orientation and shading. It prescribes criteria and parameters for design and construction of energy efficient buildings in 3 categories:

  1. ECBC compliant
  2. ECBC plus
  3. Super ECBC

Various measures proposed in the Code can also be combined with the use of renewables to convert buildings into Net Zero Energy Building category. 

At present, there is no proposal to mandate that all new buildings and offices in future to be Super ECBC and Net Zero Energy Buildings. However, all offices, sub-ordinate offices, attached offices including offices of Central Public Sector Undertakings (CPSUs) and their Joint Ventures, under the administrative control of Ministry of Power have been advised to prepare action plan for converting their owned buildings and offices into Net Zero buildings.

It is estimated that with adoption of ECBC 2017 in all new commercial buildings constructed 2018 onwards will result in 25% energy savings by 2030. Further, the adoption of ECBC plus and Super ECBC parameters is estimated to result in energy savings of 35% and 50% respectively.