A structured prior over Massachusetts commercial and industrial buildings to identify where a 250 kW / 522 kWh battery captures meaningful demand-charge savings before requesting an electric bill.
Ranked against National Grid’s filed G-2 ($15.06/kW) and G-3 ($10.48/kW) distribution tariffs. Combines MassGIS assessor records, NREL ComStock 15-minute load profiles, and parcel-line exterior wall clearance to separate sharp, shaveable weekday peaks from unserviceable plateaus.
Commercial battery developers traditionally cold-call, request 12 months of utility interval bills, and evaluate feasibility after the fact. Shave inverts the sequence: it screens municipal assessor records and models load shapes to score demand-charge savings before dialing.
A 250 kW / 522 kWh system (~413 kWh usable) cannot hold down a 6-hour hospital plateau. It excels at sharp 1–2 hour weekday peaks on National Grid’s G-2 tariff ($15.06/kW), which costs 44% more per kW than G-3 ($10.48/kW). Mid-size spiky loads beat large flat loads.
4,179 parcels screened across Worcester, Fall River, and Lowell. 15-minute load shapes from NREL ComStock and industrial models, root-found against filed billing windows (08:00–21:00 weekdays), filtered by physical exterior wall clearance (≥10 ft).
| Site | Load shape | Peak / avg | Rate | Saving/yr | Conf |
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