Compliance. Savings. Risk. One system for every building.
A free public tool to track projected fines across every major building emissions law, verify energy savings with IPMVP-grade reports, detect anomalies, and ask questions in plain English. No hardware, no contracts. Open to anyone with a building - owners, tenants, facility staff, students, researchers.
One system. Every jurisdiction.
Add buildings in any covered city. The right compliance regime is applied automatically.
Click any card for a quick overview of the law.
Free for everyone.
Every feature unlocked for up to 5 buildings. No payment, no trial expiry, no upgrade prompts. Undertonne is a public tool - your feedback is the only thing we ask in return.
Free for everyone
Every feature unlocked. Open to anyone with a building - owners, tenants, facility staff, students, researchers. Tell us what works and what's missing.
Up to 5 buildings · no payment · no account upgrade
- Up to 5 buildings per account
- Every covered regime (NYC LL97, Boston BERDO 2.0, and growing)
- Monthly usage, fine projection, IPMVP savings, and anomaly detection
- Full audit log + report exports
- Postgres row-level isolation, AES-256 at rest, TLS in transit
- Direct line to the maintainers - your feedback shapes what ships next
Need to track more than 5 buildings? Get in touch - we'll work something out.
A complete view of every building, every day.
Usage, fine, savings, anomalies, and more. Refreshed nightly or on your schedule. Reports export to PDF, Excel, and CSV - formats that hold up in an audit.
Monthly Usage, instantly
Every meter read rolls up to a weather-normalized timeline. See exactly where your kWh and therms went - no spreadsheets.
Fine Projected in real time
LL97, BERDO, BEPS - every covered regime is computed against your YTD trajectory. Know your May 1st number in April.
IPMVP-grade savings receipts
Option C baselines, ASHRAE G14 quality gates, dollar-exact attribution. Reports you can share with stakeholders or auditors with confidence.
Anomalies before bills
Z-score detection against your own baseline catches a degrading chiller two months before it shows up on a utility bill.
Security, taken seriously.
Sign-in, MFA, audit logs, encryption at rest and in transit - shipped from day one. We rely on Clerk (SOC 2 Type II) for identity and Timescale Cloud for managed Postgres, inheriting their compliance posture for the parts of the stack they run.
Encryption at rest & in transit
TLS, field-level encryption, more.
Row-level account isolation
Row-level security in database.
Append-only audit log
Immutable audit trail.
Certified identity provider
Sign-in handled by Clerk.
All data hosted in AWS United States regions
Your data never leaves the region without an explicit export you trigger.
Clerk
Identity & auth
Timescale Cloud
Database + time-series DB
Questions about how data is handled? Email security@undertonne.com.
Sensible defaults for a public tool.
MFA, social sign-in, encryption at rest and in transit, and an append-only audit log are on by default. Found a security issue? Email security@undertonne.com.
See your projected fine in under two minutes.
Create a free account, add a building, and the dashboard does the rest. No payment, no credit card.