IGBC Net Zero Energy Rating

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 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 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 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), Warehouses, Railway Stations, etc.

Validity

The rating awarded for IGBC Net Zero Energy under Design & Construction phase or Operations phase would be valid for a period of 3 years. The projects certified under Design & Construction phase shall apply for Operations phase certification with the prevailing version. The projects certified under Operations phase shall apply for recertification with the prevailing version

Types of Certifications

Projects can apply for IGBC Net Zero certification during Design and Operation phase, and following are the types of certification:

  • Design Certification - For projects in Design and Construction stage.
  • Operations Certification - For projects in Operations stage for at least one year. Such projects should have implemented the measures and also have the recent annual performance data for validation.
  • Provisional Certification - For projects in Operations stage for at least three months. Such projects should have implemented the measures and also have the recent three months performance data for validation.

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Certification Levels

The threshold criteria for certification levels are as under :

Certification Level Compliance Requirement (Percentage of renewable energy w.r.t. total annual energy consumption) Minimum Points to Comply
Near Net Zero Energy Meet/ offset 75% or more project’s annual energy requirement from on-site/ off-site RE sources NA
Net Zero Energy Meet/ offset 100% or Maximum Allowable Quantity* of project’s annual energy requirement from on-site/ off-site RE sources NA
Net Zero Energy Platinum Meet/ offset 100% or Maximum Allowable Quantity* of project’s annual energy requirement from on-site/ off-site RE sources 80

* Maximum Allowable Quantity (MAQ):

(a) Maximum allowable quantity depends on the state electricity policy related to maximum allowable capacity for the respective project with respect to onsite and offsite/open access renewable energy sources.

(b) The maximum allowable quantity shall be equal or higher than 95% w.r.t. building’s annual energy consumption.

Fee Structure

Registration Fee:
Membership Category Fee (₹)
IGBC Founding Member ₹ 25,000
IGBC Annual Member ₹ 25,000
Non Member ₹ 30,000
Design Certification Fee(₹)*
Membership Category Base Fee Additional fee for Projects with multiple buildings including common basements (Applicable for up to four buildings)
Overall built-up area
5,000 sqm & below 5,001 sqm to 20,000 sqm 20,001 sqm to 50,000 sqm 50,001 sqm to 75,000 sqm For each additional building with built-up area 5,001 sqm and above
Flat Fee (₹) Flat Fee (₹) Flat Fee (₹) Flat Fee (₹) Flat Fee (₹)
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(₹)#
Membership Category Base Fee Additional fee for Projects with multiple buildings including common basements (Applicable for up to four buildings)
Overall built-up area
5,000 sqm & below 5,001 sqm to 20,000 sqm 20,001 sqm to 50,000 sqm 50,001 sqm to 75,000 sqm For each additional building with built-up area 5,001 sqm and above
Flat Fee (₹) Based on sqm (₹) Based on sqm (₹) Flat Fee (₹) Flat Fee (₹)
IGBC Founding Member ₹ 1,80,000 ₹ 2,05,000 plus ₹ 6 per additional sqm over & above 5,000 sqm ₹ 3,25,000 plus ₹ 6 per additional sqm over & above 20,000 sqm ₹ 5,75,000 ₹ 50,000
IGBC Annual Member ₹ 1,90,000 ₹ 2,15,000 plus ₹ 6.25 per additional sqm over & above 5,000 sqm ₹ 3,40,000 plus ₹ 6.25 per additional sqm over & above 20,000 sqm ₹ 5,90,000 ₹ 50,000
Non-Member ₹ 2,00,000 ₹ 2,25,000 plus ₹ 6.50 per additional sqm over & above 5,000 sqm ₹ 3,50,000 plus ₹ 6.50 per additional sqm over & above 20,000 sqm ₹ 6,00,000 ₹ 50,000

# Certification fee/ Provisional certification fee is applicable for projects in operation phase. The fee for Provisional certification is same as Certification fee, and projects which apply for Provisional certification need not pay Certification fee later.

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, ₹ 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 Green Building projects which are already registered under any IGBC rating system (other than IGBC Net Zero rating system) shall register separately for the Net Zero certification.
  • The certification fee for projects having a total built-up area of more than 75,000 sq m is calculated additionally, over and above to the base fee, based on the total built-up area. The project teams are requested to contact IGBC Marketing / NZ Technical team for the certification fee proposal for such projects

NZ – Energy, Water and NZ Waste to Landfill

  • The projects which adopt two or more Net Zero ratings (of NZ Energy or NZ Water or NZ Waste to Landfill) shall be offered 20% reduction on the second & third NZ certification fee (other than NZ Carbon) whenever the project applies for certification.

NZ – Carbon

  • 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 NZ Energy, NZ Water, and NZ Waste to landfill ratings, in addition to the Net Zero Carbon rating, such projects shall be offered 20% reduction on the second, third & fourth NZ certification fee whenever the project applies for certification.

Contact Us

For more details, please contact:
IGBC Marketing:
Anand Sundararajan
Associate Counsellor
Request a Call
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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