Harnessing Gravity: RRPT Hydro’s Modular Power Vision

The Data Center Frontier Show

In this episode of the Data Center Frontier Show, DCF Editor-in-Chief Matt Vincent speaks with Ed Nichols, President and CEO of Expanse Energy / RRPT Hydro, and Gregory Tarver, Chief Electrical Engineer, about a new kind of hydropower built for the AI era.

RRPT Hydro’s piston-driven gravity and buoyancy system generates electricity without dams or flowing rivers—using the downward pull of gravity and the upward lift of buoyancy in sealed cylinders. Once started, the system runs self-sufficiently, producing predictable, zero-emission power.

Designed for modular, scalable deployment—from 15 kW to 1 GW—the technology can be installed underground or above ground, enabling data centers to power themselves behind the meter while reducing grid strain and even selling excess energy back to communities.

At an estimated Levelized Cost of Energy of $3.50/MWh, RRPT Hydro could dramatically undercut traditional renewables and fossil power. The company is advancing toward commercial readiness (TRL 7–9) and aims to build a 1 MW pilot plant within 12–15 months.

Nichols and Tarver describe this moonshot innovation, introduced at the 2025 DCF Trends Summit, as a “Wright Brothers moment” for hydropower—one that could redefine sustainable baseload energy for data centers and beyond.

Listen now to explore how RRPT Hydro’s patented piston-driven system could reshape the physics, economics, and deployment model of clean energy.