Projects Onboarding
Experts Consulted
tCO2e reduced/building
Example Revenue
The Building Emissions Reduction Standard (BERS) is Ontoly's framework for certifying carbon credits from building retrofits. Every BERU traces to an exact building and an exact technology — no estimates, no mega-project aggregation, no guessing what your money funded. Tracked on the Ontoly Registry from issuance to retirement.
"I built Ontoly because the carbon market is over-indexing on removals — credits that carry real permanence risk — while verified emissions reductions from buildings go unrewarded. We invented the pathway to trace every credit to a real building and a real retrofit." - Ashley Sarauer, Founder & CEO
A Building Emissions Reduction Unit is a carbon credit representing one tonne of CO2e reduced through a certified building retrofit — issued, tracked, and retired on the Ontoly Registry.
Every BERU is quantified from measured utility data, not models or estimates, and traces to a specific building and retrofit — no mega-project aggregation.
Building owners, managers, retrofit engineering firms, and consultants with eligible retrofit projects under the BERS Program. Check eligibility on the program page.
Voluntary offsetting, green building certification offsets (LEED v5, Zero Carbon Standard), and — subject to jurisdictional approval — compliance under emerging Building Performance Standards.
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