IGBC NET ZERO ENERGY BUILDINGS

The building sector in India is growing at a rapid pace and contributing significantly for the increase in energy demand. The increase in energy demand leads to increase in Green House Gas (GHG) emissions and hence global warming. Green buildings have demonstrated that about 25 to 30% reduction in energy consumption with respect to the National baselines, can be achieved by implementing energy efficient practices and technologies.

The advancements in the renewable energy technologies, policy interventions by the Government and the wider adoption of renewable energy sources have made the cost of renewable energy generation very competitive. In fact, buildings can become self-sufficient by generating their own energy requirements economically, through the use of onsite/ offsite renewable energy sources.

Against this background, the Indian Green Building Council (IGBC) has launched 'IGBC Net Zero Energy Buildings Rating System' in 2018. This rating system is a tool which enables the designer to apply energy efficiency concepts and adopt appropriate renewable sources by design to achieve Net Zero Energy Status. In case of an existing building, the tool enables implementation of energy efficient measures to reduce energy consumption and meet the rest of the energy requirements through renewable energy sources.

Benefits

Net Zero Energy concepts and techniques encourage to use of Renewable Energy sources to meet the energy requirements of the building. It would result in

  • Improvement in energy efficiency and hence reduction in annual energy consumption to the tune of about 25-30% with respect to the National baseline.
  • Overall reduction in energy cost of at least about 30%.
  • Reliable source of power supply if combined with energy storage devices.

The rating system evaluates buildings on a performance-based approach. The rating system is evolved to be comprehensive and at the same time user-friendly. The programme is fundamentally designed to reduce the energy needs of a building and national priorities.

Overview

IGBC Net Zero Energy Building rating system addresses energy efficiency and Renewable Energy through the following sections

  • Energy performance
    • Simulation approach
    • Prescriptive approach
      • Energy efficient building envelope
      • Air conditioning
      • Lighting
      • Appliances
  • Renewable Energy
  • Thermal comfort, Indoor temperature and RH

Note:
The mandatory requirements and credits earned at the preliminary review are only considered as expected. These mandatory requirements and credits are not awarded until the final documents are submitted, along with additional documents showing implementation of design features.

Scope

IGBC Net Zero Energy Buildings Rating System is designed for both new and existing buildings/ projects, both for air-conditioned and non-air-conditioned spaces.

Net Zero Energy Building (NZEB) Rating is applicable to Commercial, Industrial as well as Residential building projects those are able to off-set 100% annual grid energy use by renewable energy sources (either on-site and or off-site). These buildings include but not limited to offices, banks, IT parks, shopping malls, hotels, hospitals, airports, convention centers, educational institutions (schools, colleges, university Campus), Factory Building/ projects, Warehouses, Railway Stations, etc.

Certification Levels

The threshold criteria for certification levels are as under :

Certification Level Credit points Recognition
Net Zero Energy < 80 Best Practices
Net Zero Energy Platinum 80 and above Outstanding Performance

IGBC will recognise Net Zero Energy Buildings that achieve one of the rating levels with a formal letter of certification and a mountable plaque. Net Zero Energy certification can be awarded either at Design Stage or during Operation. A building which achieves Net Zero Energy Certification at Design State must showcase Net Zero Energy Performance after one year of building operation.

Fee Structure

Registration Fee*:
Membership Category Fee (INR)
IGBC Founding Member 25,000
IGBC Annual Member 25,000
Non Member 30,000
Design Certification Fee(Rs)*
Membership Category Base Fee Additional fee for Projects with multiple buildings including common basements*
Overall built-up area
5,000 sq m & below 5,001 sq m to 20,000 sq m 20,001 sq m to 50,000 sq m 50,001 sq m to 75,000 sq m For each additional building with built-up area 5,001 sqm and above
Flat Fee (INR) Flat Fee (INR) Flat Fee (INR) Flat Fee (INR) Flat Fee (INR)
IGBC Founding Member 1,80,000 2,60,000 3,55,000 4,75,000 50,000
IGBC Annual Member 1,90,000 2,70,000 3,70,000 4,90,000 50,000
Non-Member 2,00,000 2,80,000 3,80,000 5,00,000 50,000

* Design certification fee is applicable for projects in design and construction phase.

Certification Fee(Rs)#
Membership Category Base Fee Additional fee for Projects with multiple buildings including common basements*
Overall built-up area
5,000 sq m & below 5,001 sq m to 20,000 sq m 20,001 sq m to 50,000 sq m 50,001 sq m to 75,000 sq m For each additional building with built-up area 5,001 sqm and above
Flat Fee (INR) Based on sq m (INR) Based on sq m (INR) Flat Fee (INR) Flat Fee (INR)
IGBC Founding Member 1,80,000 Rs. 2,05,000 plus Rs. 6 per additional sq m over & above 5,000 sq m Rs. 3,25,000 plus Rs. 6 per additional sq m over & above 20,000 sq m 5,75,000 50,000
IGBC Annual Member 1,90,000 Rs. 2,15,000 plus Rs. 6.25 per additional sq m over & above 5,000 sq m Rs. 3,40,000 plus Rs. 6.25 per additional sq m over & above 20,000 sq m 5,90,000 50,000
Non-Member 2,00,000 Rs. 2,25,000 plus Rs. 6.50 per additional sq m over & above 5,000 sq m Rs. 3,50,000 plus Rs. 6.50 per additional sq m over & above 20,000 sq m 6,00,000 50,000

# Certification fee/ Provisional certification fee is applicable for projects in operation phase.

Notes:
  • The fee mentioned above is exclusive of Goods and Services Tax (GST).
  • The fee structure is applicable to both Owner-occupied and Tenant-occupied projects.
  • Parking areas need not be considered as part of the built-up area.
  • Registration, Design certification and Certification/ Provisional certifications fees are non-refundable.
  • Membership discounts can be availed only if the Project Owner or Developer is a member of IGBC.
  • Only one plaque would be awarded on a complimentary basis for projects adopting a Net Zero rating. If the client wishes to have an additional plaque, INR 20,000 + GST would be payable for each additional plaque.
Additional Notes:
  • The registration fee shall be payable once for adopting any Net Zero rating or a combination of Net Zero ratings.
  • The projects which adopt second and/or third Net Zero rating (Say NZ Energy or NZ Water or NZ Waste to Landfill) shall be offered 20% reduction on the base NZ certification fee for each NZ rating whenever the project applies for certification.
  • The project which applies only for Net Zero Carbon certification shall pay full certification fee as per the fee mentioned above.
  • The projects which apply for two or more Net Zero ratings (i.e. Energy, Water & Waste to landfill) in addition to the Net Zero Carbon rating, then such projects shall be offered 20% reduction on the base NZ Carbon certification fee.

Contact Us

For more details, please contact:
IGBC Marketing:
Anand Sundararajan
Associate Counsellor
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IGBC Technical:
Chakka Nagendra Subrahmanyam
Associate Counsellor
chakka.subrahmanyam@cii.in
Naveen Jain
Counsellor
naveen.jain@cii.in
Mr Yasin Khan
Counsellor
yasin.khan@cii.in

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