WSEC Compliance · Pricing

Builder Solar Pricing for WSEC Energy Credits

Builders asking about solar pricing usually want one thing first: a number they can plan around, not a range that moves later. So here is what actually drives the price of a WSEC-compliant solar system, what we need from you to return a fixed bid, and why that number holds once construction starts.

Phase 1

What Actually Moves the Price

Four things drive the number on a WSEC solar bid. First, the system size needed to hit your credit target: more credits needed generally means a larger array, though the cost per credit often improves as the system scales up. Next, roof complexity matters: pitch, shading, the number of roof planes, and whether any structural work is needed to mount the array all factor in. Then there’s the home’s electrical service and panel capacity, since a system that needs a service upgrade to interconnect costs more than one that doesn’t. Finally, whether this is a single lot or a repeatable program changes the math entirely.

For builders running the same plan across multiple lots, one engineered spec reused across every matching home holds a single fixed price per home instead of a fresh quote every time a lot closes. See how repeatable program pricing works →

Phase 2

What We Need From You to Return a Bid

Because the price depends on the plan set, not a rough square-footage guess, we ask for the same handful of items on every bid request:

Phase 3

Why the Number Holds Once We Quote It

Once Solphos returns a fixed bid based on your plans, that is the number you build around. Because it is tied to a specific plan set and roof layout, a materially different roof plan, an added structural change, or a different lot layout means the bid gets revisited. Short of that, nothing gets added after the fact.

Phase 4

One Price Across Multiple Lots

Building more than one spec home this year changes how the price should work. Instead of quoting each lot separately, we design a single WSEC-compliant spec sized to your typical roof plan, then hold one fixed price across every matching lot in the program, regardless of which city or utility territory it falls under. See the full program pricing model →

Common Questions

What do you need to send a fixed bid?

A plan set or roof/elevation drawings, the project address, your target WSEC credit level if you know it, and your construction timeline. From there, we return a sized system, credit count, and fixed price.

Is the price the same for every home in a plan book?

For homes matching the same roof plan under a repeatable program, yes. A different roof plan or a lot with unusual shading or structural conditions gets priced on its own. See how program pricing works.

What can change the price after the bid is returned?

A materially different plan set, added structural work, or a change in system size needed to hit a new credit target. Routine permitting, inspection, and utility coordination stay inside the original bid.

How fast can you turn around a bid?

Typically a few business days once we have the plan set or roof/elevation drawings in hand.

Does the fixed bid include permitting and interconnection?

Yes. The number covers design, the permit package, installation, inspection support, and utility interconnection coordination in one scope.