Rondo Energy, Inc.

Jeremy Quentin Keller

Peter Emery Von Behrens

Yusef Desjardins Ferhani

Matthieu Jonemann

Robert Ratz

Chiaki Treynor

John Setel O'Donnell

John Setel O′Donnell

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

Thermal energy storage system with steam generation system including flow control and energy cogeneration

Methods for material activation with thermal energy storage system

Thermal energy storage system with deep discharge

Thermal energy storage system with forecast control of operating parameters

Calcination system with thermal energy storage system

Thermal energy storage assemblage with energy cogeneration

An apparatus includes one or more thermal storage blocks that define a radiation chamber and a fluid flow slot positioned above the radiation chamber to define a fluid pathway in a first direction. The apparatus includes a heater element positioned adjacent to the radiation chamber in a second, different direction, wherein the radiation chamber is open on at least one side to the heater element. The apparatus includes a fluid movement system configured to direct a stream of fluid through the fluid pathway in the first direction.

Thermal energy storage system with radiation cavities

Thermal energy storage system with steam generator having feedback control

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000&#xb0; C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

Thermal energy storage system with steam generator having feed-forward control

Energy storage system and applications

Material activation system with thermal energy storage system

Growing community of inventors

Seattle, WA, United States of America

Jeremy Quentin Keller