Gravity Request a briefing

The papers.

Gravity publishes its engineering. The physics papers are open. The strategy papers are available to anyone who tells us who they are. The commercial and manufacturing documents are held in a data room for qualified counterparties under NDA. Every paper is versioned and labels its figures as measured, modeled, or unmeasured.

Engineering papers

Open. Physics, system architecture, and validation.

What Has Been Measured, What Has Been Modeled

The complete figure set for the Gravity system, stated by basis of evidence. This sheet governs every other document.

Conservation of Energy in Heavy-Duty Vehicle Systems

A first-principles framework: where a heavy vehicle's fuel energy goes, why suspension damping is the one loss stream that is recoverable, and how much.

Regenerative Suspension Systems: A Comparative Review

ClearMotion, Audi eROT, and Gravity. Why two capable teams left the energy-generation lane open, and why Class 8 is the right platform.

The Power of Motion

Distributed generation from the freight fleet already on the road, built from a single modeled number.

Every Mile Stored

Battery architecture: why lithium iron phosphate, how the hydraulics do most of the smoothing, and what a pack has to survive.

Harnessing Pressure: A Technical Overview

How suspension displacement becomes hydraulic pressure and how accumulators turn a pulsed input into continuous output.

Revision in progress

Let the Engine Haul

Why auxiliary electrical load should not be the engine's job, and what happens to fuel burn when it is not.

Revision in progress

Ten Laws That Make Gravity Inevitable

The physical and economic principles that make suspension energy recovery a matter of when, not whether.

Revision in progress

The Vertical Layer

Vertical motion as an energy layer no one has built on, and why heavy commercial platforms come first.

Revision in progress

Strategy papers

Available on request. Tell us your name and organization and we will send access.

Securing America's Energy Future

Distributed vehicle generation as a grid-resilience asset in a contested threat environment.

A National Path to Energy Dominance

How America's transportation network becomes a domestic energy asset, with fleet-scale figures labeled modeled.

Filling America's Energy Gap with Speed and Scale

Distributed mobile generation as a near-term complement to new baseload, with a modeled cost basis.

The Federal Fleet as Proving Ground

Why the federal fleet is the wrong volume market and the right first customer, and the Title 10 requirement it already satisfies.

Onboard Power for Defense Platforms

Generator independence, silent watch, and forward energy for deployed platforms. The OTA pathway.

End-User Pathways

How fleets, facilities, and manufacturers each capture value from the same system.

Revision in progress

OEM Integration Overview

The retrofit-to-integration pathway for manufacturers.

Revision in progress

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We use this to send the papers and to know who is reading them. Nothing else.

Data room

Bill of materials and tiered cost model, manufacturing and commercialization strategy, intellectual property valuation, and the Tier-1 engineering path to production. Available to qualified investors, fleet counterparties, and manufacturers under non-disclosure agreement.

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