Solar sales is a game. We learned the rules so you don’t have to.

Sunline Solar Group started with a simple observation: the person across the table from you negotiates solar deals every single day. You do it once a decade. That’s not a fair fight — so we even it.

We’re a residential solar negotiation and installer-vetting consultancy. We don’t install panels. We don’t sell equipment. We don’t take commissions from installers or lenders. Our only paycheck is your flat fee — which means our only incentive is getting you a better deal.

The model comes from our sister vertical, Sticker Auto Group: paste the quote, we negotiate A to Z, you keep the savings. Solar needed it more — the quotes are bigger, the financing is murkier, and since the 30% federal credit ended (Section 25D, systems placed in service after Dec 31, 2025), there’s no cushion left for overpaying.

Who’s behind this

Sunline Solar Group is a vertical of THERXSIGNAL LLC, founded by Puru Gaur — a commercial intelligence professional who spends his days taking apart the numbers behind multi-billion-dollar pharma decisions. Turns out the same skills work on a $28,000 solar quote: benchmark the price, find the hidden fees, read the contract, verify everything.

Puru appears at most twice across our sites — here, and where it matters. No stock-photo founders, no invented team bios.