Rest and Wollemi Buy Majority Stake in Redball
The Washington solar firm, which operates about 4,500 rooftop systems, will expand across the Mid-Atlantic and Northeast.
Updated on Nov. 13, 2026 in Corporate Finance
Rest and Wollemi Capital have acquired a majority stake in Redball Energy, a distributed solar company based in Washington, DC. The investment amount was not disclosed.
Why it matters
The deal brings institutional backing to a rooftop solar firm that plans to expand across the Mid-Atlantic and Northeast and add battery storage. It also extends Rest and Wollemi's distributed solar investments beyond Australia.
Redball owns and operates around 4,500 rooftop solar systems on homes and businesses in the Mid-Atlantic and New England, versus Rest's A$230m cornerstone commitment to Wollemi's first managed vehicle. The transaction value and the stake percentage remain undisclosed.
The players
Rest
Rest is an Australian superannuation fund that has made recent investments in distributed solar through Wollemi and MPower.
Wollemi Capital
Wollemi Capital is an investment manager that runs managed vehicles directing capital into distributed energy assets.
Redball Energy
Redball Energy is a distributed solar company based in Washington, DC, operating rooftop systems across the Mid-Atlantic and New England.
The details
Rest is investing in Redball through a Wollemi-managed co-investment fund, with Redball working closely with a select group of trusted local installers. Redball was founded in 2021 and plans to expand across the Mid-Atlantic and Northeast while adding battery storage.
Timeline
2021: Redball Energy is founded.
July 2025: Rest makes its A$230m cornerstone commitment to Wollemi's inaugural managed vehicle.
November 13, 2026: The majority stake acquisition in Redball is announced.
Market Dynamics
The Redball acquisition follows Rest and Wollemi's expanded A$350m investment in MPower, an Australian distributed solar and storage platform, extending the same strategy to a US rooftop solar operator. It signals continued institutional capital flowing into distributed solar and storage across markets.
For retail investors, the deal shows institutional capital moving into rooftop solar, a sector that may affect the availability of co-investment products tied to distributed energy. Individuals considering solar installations in the Mid-Atlantic or New England may see expanded installer options as Redball grows.
The takeaway
Institutional investors are increasingly backing distributed solar platforms across borders, and rooftop operators with established installer networks are attracting that capital. Readers tracking clean energy investments should watch whether Redball's planned battery storage build-out follows through.
Further reading
For related coverage, browse Corporate Finance stories from Washington.
Source note: This article includes information reported by Real Assets.
