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Energy Conservation Building Code (ECBC)

Energy Conservation Building Code (ECBC)

The ECBC was developed by the Govt. of India for new commercial buildings on 27th May 2007. The purpose of Energy Conservation Building Code (ECBC) is to provide minimum requirements for energy-efficient design and construction of buildings and their systems. The building sector represents about 33% of electricity consumption in India, with commercial sector and residential sector accounting for 8%and 25% respectively. Estimates based on computer simulation models indicate that ECBC-compliant buildings can use 40 to 60% less energy than conventional buildings. It is estimated that the nationwide mandatory enforcement of the ECBC will yield annual savings of approximately 1.7 billion kWh. The ECBC is expected to overcome market barriers, which otherwise result in under-investment in building energy efficiency. The ECBC was developed as a first step towards promoting energy efficiency in the building sector. The ECBC is the result of extensive work by the Bureau of Energy Efficiency (BEE) and its Committee of Experts.

The ECBC was developed under the guidelines of BEE with significant inputs from various other stakeholders such as practicing architects, consultants, educational institutions and other government organizations. The purpose of ECBC is to provide minimum requirements for energy efficient design and construction of buildings and their systems without compromising on the comfort of the occupants.

New Construction

The Energy Conservation Building Code (ECBC) was developed by the Govt. of India for new commercial buildings on 27th May 2007. ECBC sets minimum energy standards for commercial buildings having a connected load of 100kW or contract demand of 120 KVA and above. While the Central Government has powers under the EC Act 2001, the state governments have the flexibility to modify the code to suit local or regional needs and notify them. Presently, the code is in the last stage of notification.

Existing Buildings

In existing building we could save upto 30 percent of electricity by applying ecbc code. For this we could do retrofitting in the existing building and can make building close to ECBC compliant building.

The ECBC provides design norms for

Building envelope, including thermal performance requirements for walls, roofs, and windows Lighting system, including day lighting, lamps and luminaries' performance requirements HVAC system, including energy performance of air distribution systems Electrical system Water heating and pumping systems, including requirements for solar hot-water systems.