Solar Results Guidebook
The whole solar picture, on your timeline.
The Solar Results Guidebook walks through what solar actually costs, what it returns, and what makes sense for your home. Written by Brett Joerger, founder and CEO of Westhaven Power, and built on 10,000+ Northern California installations across 15+ years. Get your copy and decide on your terms, on your timeline.
- 10,000+ installs
- 15+ years
- 100% in-house
By Brett Joerger
What is the Solar Results Guidebook?
The Solar Results Guidebook walks through what solar actually costs, what it returns, and what makes sense for your home. Decide on your terms, on your timeline.
The Solar Results Guidebook is written by Brett Joerger, the founder and CEO of Westhaven Power in Yuba City and the author of Grid Liberation.
Behind every page: 10,000+ installations across Northern California in 15+ years, all by our own in-house crews. It is the homework we wish every homeowner had before the first conversation with any solar company, ours included.
Why now
The grid you grew up with is not the grid you live on now. Rates climb every year. Outages arrive without warning. And demand is exploding, because AI just joined the grid, and the data centers it runs on pull from the same lines your home does. The homeowners who come out of this era ahead are the ones who understood their options before they needed them.
That is what this guidebook is for. It is the same clarity we teach live in the Northern California Power Briefing, in a form that runs on your timeline instead of ours. Read a chapter at lunch. Hand it to your spouse. Circle what sounds like your house. No countdown clock, and the next move stays yours.
Inside the 2026 edition
What's inside?
Twelve short chapters. Every one either saves you from an expensive mistake or points at money you would have left on the table.
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Who is actually quoting you.
The middleman markup on brokered solar runs as high as 20 to 50 percent of the contract, and the "free review" sites selling your phone number are how it starts. Learn to spot both in one conversation.
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The guarantee that separates installers from salesmen.
Production numbers in writing, with compensation if the system misses. Plus the full checklist of promises to get on paper before you sign anything.
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Your roof's real number.
What your roof can actually produce and why no honest installer negotiates with physics. A real shade audit is the difference between a system that works on paper and one that works in July.
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The questions that expose a broker in under a minute.
The three California licenses your contractor must hold, and the exact consultation questions we wrote after sitting through thousands of them.
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Cash, financing, or lease.
How each one actually plays out over 25 years, what changed in 2026, and why the cheapest-sounding option is not always the cheap one.
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What happens when it breaks.
Why the company with a real service department wins the decade, even when it does not win the bid.
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Batteries and EVs, sized right.
Why storage moved from optional to obvious when peak pricing flipped to nighttime, and how to size a system for the house and the cars it charges.
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Grid Liberation, the endgame.
Your home running on its own power, the grid demoted to backup, and the switch that makes it automatic.
Get your copy
Ready when you are.
One short form stands between you and your copy. Read it at the kitchen table, mark it up, and keep it. The homework is yours either way.
Get the guidebookReady for numbers instead? See your options.