Fleet operators do not buy forecasts. They buy what they can watch work on equipment they recognize. Gravity's rolling Class 8 demonstrator is built for exactly that.
Net continuous electrical output per Class 8 tractor, modeled by Pratt Miller Engineering on Peterbilt road-profile data.
Per vehicle, per year, on a 2,000-hour duty cycle. Energy the vehicle produces while doing the job it was already doing.
Driver intervention. The system operates within the manufacturer's suspension specification and is invisible to the route.
Figures are modeled. Full-scale Class 8 hardware validation is the current engineering program. See the validation ledger.
Captured energy powers auxiliary systems onboard, displacing fuel the engine would otherwise burn to run them.
Surplus transfers to facility storage when the truck returns. The terminal draws on it instead of buying at retail.
Stored energy covers the hours when demand charges and time-of-use rates are highest.
When the grid drops, the facility keeps running on energy the fleet delivered. A yard full of trucks is a yard full of storage.
Retrofit is planned around your maintenance schedule. No route disruption, no new driver procedures.
The Class 8 demonstrator is a Pratt Miller-engineered system mounted on a real tractor. It is simultaneously the field-validation platform and the place where fleet decision-makers see a working system produce power on a duty cycle they recognize, then sign for the install.
Gravity is engaged with a top-5 national freight carrier under non-disclosure agreement, and with Peterbilt Motors, a PACCAR company, whose Senior Principal Engineer has issued a letter of support. Reference details are shared with qualified fleet counterparties under NDA.
Tell us your terminal, route profile, and tractor count. We will bring the numbers that match it.
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