Jupiter Power Secures $1.4 Billion Financing Package for 1,500 MW / 3,600 MWh BESS Portfolio

Backed by senior secured facilities and private placements, the multi-asset financing supports 10 utility-scale battery energy storage systems across ERCOT (...

Jupiter Power Secures $1.4 Billion Financing Package for 1,500 MW / 3,600 MWh BESS Portfolio

Backed by senior secured facilities and private placements, the multi-asset financing supports 10 utility-scale battery energy storage systems across ERCOT (Texas) and MISO (Michigan), addressing extreme weather grid volatility.

Scaling 1,500 MW / 3,600 MWh Storage Across ERCOT and MISO

Energy storage developer and operator Jupiter Power LLC has closed 1.4 billion in new financing across four transactions, bringing its cumulative capital raised since inception to over3 billion. The capital supports the deployment of 10 utility-scale battery energy storage systems (BESS) totaling 1,500 MW / 3,600 MWh of flexible capacity across the ERCOT and MISO electricity markets.

A core milestone of the transaction series was a $536 million senior secured debt and tax equity bridge facility dedicated to three major Texas projects: Tidwell Prairie II, Bee Branch, and Barton Branch, which are entering commercial operation.

Grid-Forming Inverters and Resiliency Against Weather Extremes

The installations utilize high-density lithium-iron-phosphate (LFP) chemistries paired with advanced grid-forming inverters capable of instantaneous sub-second active power injection.

Operating in the ERCOT territory, where summer heatwaves push wholesale reserve margins to critical thresholds, and MISO, where winter freeze events challenge thermal generation, these multi-hour BESS assets act as virtual peakers and dynamic stability anchors for transmission utilities.