What moves the price in Boulder
Mature trees and complex older roofs push labor and design time up; newer homes with open south roofs sit near the low end. Historic-district homes may need array placement that fits landmarks review. Wind exposure on the west side drives attachment engineering but rarely changes price much.
Take the city tax rebate as a small plus, not the reason to buy. The big incentive that used to carry Colorado solar — the 30% federal homeowner credit — ended for systems completed after 2025.
Xcel economics in Boulder
Xcel credits exports one-for-one against your usage, and credits roll forward. With the on-peak 5–9 p.m. weekday window priced at about 2.7× off-peak, the value of solar depends partly on your rate plan. We model your actual Xcel bills rather than a generic Front Range estimate.
Lease, PPA or buy
Leases and PPAs keep federal credit value in the deal because the owner can claim §48E on systems placed in service by December 31, 2027. Ours typically price 20–30% below retail, about $125–$240 a month, with a 0–3% escalator. Buying with a loan (RENU via Westerra at 7.74%–8.99% APR, or Concert Finance at 8.99%) keeps the system and the city rebate yours. Verify current terms.
FAQ
Questions we hear
How much does solar cost in Boulder in 2026?
About $2.80–$3.25 per watt installed with us, so roughly $19,600–$22,750 for 7 kW, before the city tax rebate. Shading and roof complexity are the biggest swing factors in Boulder.
How much is Boulder’s solar tax rebate worth?
About 15% of the city sales and use tax you paid on materials and permits — on a typical home system that’s a modest amount, not thousands. Apply within 12 months of final inspection; it’s subject to funding.
Do trees in my Boulder yard rule out solar?
Not necessarily. We run a shade analysis across the year; sometimes a smaller array on the least-shaded plane still pays, and sometimes the honest answer is that it won’t.
Does Xcel still offer Solar*Rewards in Boulder?
Reports indicate the residential Solar*Rewards program has sunset, but we haven’t confirmed its current status, so we don’t include it in quotes.