The building sector consumes one third of the total annual electrical energy consumption in the State and is one of the largest contributors to Green House Gas emissions. Having regard to the fact that, the rate of growth in commercial building sector is amongst the highest and needs to be moderated in its energy consumption
Buildings are major consumers of energy in their construction, operation and maintenance phase. Energy consuming systems for lighting, air-conditioning and water heating provide comfort to its occupants but consumes large quantum of energy. Taking the utilization of consumption into consideration, it is necessary to design a building conservation aspects focusing on energy
Energy Conservation and Energy Efficiency is the fastest, cleanest and cheapest way to meet energy needs. India could save each year by greatly improving Energy Conservation and Energy Efficiency in the buildings.
The Energy Conservation Act, 2001 empowers the Central Government to prescribe Energy Conservation Building Codes (ECBC) for efficient use of energy and its conservation in the building or building complex to reduce the adverse impact of buildings on the environment.
The Act firstly started with commercial building spaces to roll out best practice of Energy Efficiency as one of the key strategy adopted by the State Government. Also, considering a vast potential of energy savings and benefits of energy efficiency, the Karnataka Energy Conservation Building Code (K ECBC) 2014 was introduced by the Govt. of Karnataka.
Further, the K ECBC 2014 had been updated as KECBC 2018 and notified in the Karnataka State Gazette on 28th May 2020. The Code is mandatory and the enforcement of the Code came into effect in the State from the date of notification for efficient use of energy in the Commercial Buildings.
Also, to provide the rules/procedures for the implementation of the KECBC Compliant Building, KECBC Rules-2018 was notified along with the KECBC (Code) 2018.
The KECBC 2018 is applicable for buildings or building complexes that have a connected load of 100 kW or greater, or a contract demand of 120 kVA or greater and are intended to be used for commercial purposes.
This version of ECBC provides current as well as futuristic advancement levels that go beyond the minimum requirements in building technology to further reduce energy consumption and promote low-carbon growth.
The K ECBC is a directive, which refers to both structure and the application of processes that are energy efficient to promote the Energy Efficient Buildings.
The KECBC-2018 Code encompasses dynamic initiatives including energy efficiency and sets parameters for builders, designers and architects to integrate on Building Envelope, Heating, Ventilating, and Air Conditioning (HVAC) system, interior and exterior lighting systems, electrical system and renewable energy requirements. This requires close cooperation of the contractor, the architects, the engineers, and the client at the very initial design stage of the project.
Thus, the ECBC connects the whole project team i.e., Architects, Engineers, MEP (Mechanical, Electrical and Plumbing Engineers) consultants and others to think of the entire building and all of its systems together at the very initial design stage. This process enables the team to optimize systems, reduce operating and maintenance costs and maximize the energy saving in the building sector in India.
Hence, the overall objective of the KECBC-2018 is to provide the technical details to the Architects and Engineers to apply Energy Conservation principles and techniques in their designs for new Commercial buildings. The directives will ensure construction of energy efficient buildings with reduced electrical energy demand.
The application of these norms lowers the buildings energy requirement without affecting the function, comfort, health or productivity of the occupants. Adoption of ECBC 2018 shall lead to about 30%-50% of energy savings in commercial building sector which in addition results to CO2 reduction.