How to contact Renewbrook about a production guarantee shortfall
Renewbrook (which services former PosiGen leases) has no published claims process for production guarantee shortfalls, and its support is split across three different contacts. Here's which one to try first.
Last reviewed: September 30, 2026. Facts on this page rest on GuaranteeCheck research checked on September 23, 2026.
The short answer
Renewbrook does not publish a dedicated process for production guarantee shortfall claims. Our research found its support split across three different entities — Renewbrook Servicing, Renewbrook Energy, and GoodLeap — and the first step is figuring out which one actually owns your billing question.
Contact routes (as of September 23, 2026)
What to do
- Start with Renewbrook Servicing's email ([email protected]) — our research found this the clearest entry point for a billing or account-level shortfall question.
- Document the outreach: date, method, and a summary of any response.
- If that stalls, try phone escalation to Renewbrook Energy. Unlike SunStrong and Sunrun, Renewbrook doesn't yet have an established BBB complaint pattern to point to as a proven escalation lever — Renewbrook only took on PosiGen's orphaned portfolio in February 2026, so there isn't enough complaint history yet to say how well that channel works for this servicer specifically.
What to expect
Because Renewbrook is a newer servicer of this portfolio, there is less public complaint data to set expectations against than for SunStrong or Sunrun. The three-way contact split is itself a friction point worth knowing about going in — be ready to repeat your account details if you get routed between entities.
Before you write, check that a shortfall actually exists. More on this servicer is on the Renewbrook page.
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