ThresholdStack collapses inspection, modeling, and energy operations into one platform. A robot scans your building in hours. BuiltLedger turns the scan into a living model. The model tells you which upgrades pay, then proves it.








One platform, every asset class. Every module ships for all five.
Our sensor payload mounts on any robot, quadruped, AMR, or drone, and captures the building in a single pass: LiDAR geometry, thermal envelope, equipment nameplates, air quality, moisture. No cloud required. Everything is processed on the edge, on-site.
Capture data becomes a verified digital twin: a living model that updates with every scan and every sensor reading, instead of a PDF that ages the day it's filed.
BuiltLedger runs the physics. Which three upgrades move your ENERGY STAR score. What the retrofit returns, against real utility data and real incentive dollars. What your compliance exposure actually is, priced per building.
The same model that found the savings runs the building: equipment health, demand response, battery dispatch, grid program revenue. Compliance filings fall out of the data. You never chase them again.
A five-sensor payload on hardware you already trust. First pass sets the twin baseline. Recurring scans keep it honest.
Explore Robotic CaptureEnergy performance analytics, equipment lifecycle, incentive matching, and portfolio dashboards for every building you own.
Explore BuiltLedgerAn OEM-agnostic energy controller that turns building flexibility into grid revenue: demand response, storage dispatch, DER enrollment.
Explore Grid & ControlsFifty US cities now enforce building performance standards. That is the floor, and it is rising.
| Jurisdiction | Penalty | 100K sqft example |
|---|---|---|
| New York City (LL97) | $268 / ton CO₂ | $50K–$500K / yr |
| Washington DC (BEPS) | $10 / sqft cap | Up to $1M / yr |
| Boston (BERDO 2.0) | $234 / ton CO₂ | $100K–$300K / yr |
| California (Title 24) | $2,000 / day | Up to $730K / yr |
| 40+ more cities | BPS Coalition | Rolling out through 2028 |
And the same data that clears the filing finds the retrofit that pays for itself. That's what owners actually buy. Platform cost runs $2.5K to $45K a year per building. Set that against penalty exposure and retrofit returns and payback typically lands inside 2 months.
Sources: BPS Coalition, NYC LL97, DC DOEE, MA DOER, CA CEC.
Building performance penalties scale with floor area and tighten every cycle. Move the slider, pick your jurisdiction, and see where the penalty floor sits against what the platform costs.
Illustrative estimate from published penalty schedules. Not financial or legal advice.
Sources: BPS Coalition, NYC LL97, DC DOEE, MA DOER, CA CEC.
Robotic capture · building sensors (BACnet, Modbus, MQTT) · utility data · weather and grid signals · regulatory context.
BuiltLedger performance modeling. EnergyPlus physics with AI surrogates, calibrated per building. Verified digital twins. Heavy compute runs on GPUs in the cloud, real-time inference runs on the edge.
Every scan, every meter reading, and every completed retrofit trains the models that price the next one. Buildings on the platform get smarter together.
Capturing full portfolio building data, verifying it, and finding incentive opportunities while ensuring compliance.
Working with MEA grant recipients and building owners, from property intake to the incentives that increase energy efficiency and lower costs.
Direct engagement with regulatory bodies to keep reporting accurate, answers fast, and data validated, from gross floor area to incentive eligibility.
Energy compliance and upgrades for world-class companies, improving ENERGY STAR scores along the way.
From a Maryland base to portfolios across the country, every deployment feeds the same models. More buildings on the platform means better physics for all of them.
Maryland · Washington DC · North Carolina · Virginia · New York · Massachusetts · Texas · Colorado · Washington · California · Florida


A 30-minute demo with your actual portfolio, not a slide deck.
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