Turn your building retrofit savings into carbon credit revenue — closing the financing gap to decarbonize buildings at scale.

The BERS pROGRAM

The Building Emissions Reduction Standard (BERS) is Ontoly's certification framework for quantifying, verifying, and issuing carbon credits from building retrofits. It sets the rules for how emissions reductions are measured, what qualifies, and how credits are tracked from issuance to retirement — all on a public registry.

Learn how we certify

Who Creates Berus


Ontoly works with several types of suppliers who create BERUs from real building retrofit projects.

Suppliers
  • Building Owners & Managers
    Monetize your retrofit savings as certified carbon credits.

  • Retrofit Consultants
    Offer clients a carbon revenue pathway alongside your advisory services.

  • Retrofit Engineering Firms
    Connect your engineering work directly to verified carbon outcomes.

Who Buys Berus


Several types of buyers purchase BERUs — each with different goals but the same need for high-integrity, building-level carbon credits.

Buyers
  • Voluntary Carbon Market Buyers
    High-integrity credits backed by real utility data, not estimates.

  • Green Building Certification Buyers
    Offsets for Zero Carbon Standard, LEEDv5, and similar programs.

  • Building Performance Standard Compliance
    BERUs may qualify as a compliance mechanism under emerging Building Performance Standards — channeling finance to real retrofit projects. Subject to jurisdictional approval.

+
4
6
2
0
3
7
2
8
5
0
7
5
0
1
8
7
0
7
3
3
6
3
6
6
4
2
7
6
3
%

Fill the building decarbonization financing gap with carbon credit revenue.
Reason Image