Fourth Power raises $19M to scale thermal battery technology

Fourth Power raises $19M to scale thermal battery technology

The investment will initiate the construction of a 1 MWh-e prototype facility outside Boston, with a 2026 anticipated completion date.

Fourth Power recently received $19 million in Series A funding to scale its cost-effective thermal battery technology. The investment round was led by the venture capital firm DCVC, with participation from Breakthrough Energy Ventures (BEV) and Black Venture Capital Consortium. In addition to helping scale the company’s thermal energy storage solution, which can store energy for both short- and long-term durations to be put back on the grid as electricity, the investment will initiate the construction of a 1 MWh-e prototype facility outside Boston, with a 2026 anticipated completion date.

Fourth Power said its technology uses renewable energy to heat carbon blocks to temperatures so hot they glow like the sun and later release that heat on demand to the grid as electricity. Fourth Power’s system converts renewable energy to heat, or thermal energy, which can be stored until needed. The thermal battery heats liquid tin and moves it through a piping system to heat stacks of carbon blocks until they glow white hot. The system then exposes thermophotovoltaic (TPV) cells to the light and converts it into electricity. The solution is designed to maximize the value of renewable energy generation and offer grid operators control and flexibility at the lowest cost compared to other energy storage options. The system is also modular and scalable by adding more carbon blocks to increase storage duration, allowing growth with the grid as renewable generation increases.

Fourth Power said its approach to utility-scale energy storage considers the expected growth of wind and solar generation. With Fourth Power’s solution, the company said renewable energy that would otherwise be wasted due to curtailment can be stored for over a month and discharged over any period from a few hours to a few days while maintaining the lowest possible cost.

Beyond the development of its initial 1 MWh-e facility, Fourth Power said the funding will facilitate rigorous durability tests and expand the company’s engineering team to meet the market’s growing demands.

You May Also Like

Gilbarco Veeder-Root launches EV recharging ecosystem ‘Konect’

GVR said Konect offers a suite of EV charging hardware and software for fuel retailers wanting to install their own EV charging infrastructure.

GVR-Konect-Charger-retail-store-front

Gilbarco Veeder-Root (GVR) has launched Konect – an EV recharging ecosystem designed specifically for the fuel retail industry. Launched recently at the UNITI Expo, GVR said Konect offers a unique, fully integrated, site-wide suite of market-leading EV charging hardware and software solutions for businesses wanting to install their own EV charging infrastructure while driving down costs and maximizing return on investment (ROI).

Toyota chooses communities to receive EVgo fast chargers through ’empact’ vision

The high-power 350kW chargers at each location are to be installed, owned and operated by EVgo and feature simultaneous charging.

Toyota-EVgo-Charger
Energy Vault Holdings, SOM partner on gravity energy storage for buildings

SOM will be the exclusive architect and structural engineer for the next generation of fixed frames and deployable structures for GESS.

Energy-Vault-SOM-partnership
ChargePoint to allow Porche Cars NA access to its charging network

This partnership allows Porsche EV and PHEV customers to charge at ChargePoint and roaming partner charging stations via the My Porsche app.

Porsche-ChargePoint-access
Stora Enso and Altris collaborate on a sustainable battery value chain in Europe

The companies plan to drive adaptation of Stora Enso’s hard carbon solution Lignode as an anode material in Altris’ sodium-ion battery cells.

Altris-Stora-Enso
Other Posts
Ansys debuts SaaS cloud-native offering, ConceptEV

This solution enables component and system engineers to work together on EV powertrain concept designs.

Ansys-ConceptEV
Factorial delivers B-samples of lithium-metal battery cells to Mercedes-Benz

The B-samples will be integrated into modules and battery packs for extensive testing and optimization.

Lithium-Demand-Rising-EV-Battery-1400
Cummins, PACCAR, Daimler Truck N.A. form Amplify Cell Technologies JV

Amplify will soon begin construction of a 21-gigawatt hour (GWh) factory in Marshall County, Miss.

Accelera-Cummins-Daimler-Paccar-1400
Panasonic Energy batteries to power Tern, RC8 commercial vehicles

Panasonic Energy will begin manufacturing batteries for Hexagon Purus’ Tern Trucks in Japan before delivering from its U.S. production facility.

Panasonic-Energy-Tern-RC8