Solar cost calculator
Solar Panel Install cost estimator for Illinois
Estimate the cost of a residential solar panel system — by system size, panel quality, and whether you add battery backup. Pricing pre-set for Illinois — answer 3 quick questions to see your estimate.
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State-specific solar cost guides
Long-form 2026 guides with metro-level labor rates, permit details, and budgeting tips — written specifically for 6 states.
Cost Guide
Solar Panels Cost in Pennsylvania 2026
What a residential solar install actually costs in Pennsylvania in 2026 — typical 8 kW system pricing gross + after federal tax credit, the three biggest local cost drivers, and net-metering reality.
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Cost Guide
Solar Panels Cost in Oregon 2026
What a residential solar install actually costs in Oregon in 2026 — typical 8 kW system pricing gross + after federal tax credit, the three biggest local cost drivers, and net-metering reality.
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Cost Guide
Solar Panels Cost in Oklahoma 2026
What a residential solar install actually costs in Oklahoma in 2026 — typical 8 kW system pricing gross + after federal tax credit, the three biggest local cost drivers, and net-metering reality.
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Cost Guide
Solar Panels Cost in Ohio 2026
What a residential solar install actually costs in Ohio in 2026 — typical 8 kW system pricing gross + after federal tax credit, the three biggest local cost drivers, and net-metering reality.
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Cost Guide
Solar Panels Cost in North Dakota 2026
What a residential solar install actually costs in North Dakota in 2026 — typical 8 kW system pricing gross + after federal tax credit, the three biggest local cost drivers, and net-metering reality.
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Solar Panels
Solar Panel Cost in California 2026 — What 8 kW Systems Actually Run (Post NEM 3.0)
Honest 2026 California solar pricing after NEM 3.0, plus federal + state incentive stacking, real payback periods by utility (PG&E vs. SCE vs. SDG&E), and the 3 mistakes that wreck California solar ROI.
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Long-form 2026 guides on timelines, material comparisons, ROI, and financing for solar panel install projects.
ROI
Best Smart Thermostats for 2026 ROI — Real Payback by Model
An honest 2026 ranking of the best smart thermostats by real payback period. Installed cost, annual energy savings, federal tax credits, utility rebates, and which models actually fit older HVAC systems without expensive C-wire work.
Hiring & Bids
How Much Should a Contractor's Change Order Markup Be? (2026 Industry Benchmarks)
Change orders are where renovation budgets get destroyed. Here's the 2026 industry-standard markup on change orders (10-25% over direct cost), the 4 categories of legitimate vs. abusive change orders, and the exact contract clauses that cap your downside before you sign.
ROI
Best ROI Renovations 2026 — All 16 Projects Ranked
The 2026 Remodeling Magazine Cost vs Value Report, ranked. Which renovation actually pays back at resale — and which ones cost you. Full table with average cost, recoup %, and the ROI math behind each project.
Energy & Efficiency
Energy-Efficient Upgrades Worth the Money in 2026 (And the 4 That Aren't)
The 2026 ranked list of home energy upgrades by real payback period — what actually saves money, what looks green but isn't, and which tax credits and rebates apply through the Inflation Reduction Act this year.
Solar cost by state
See state-specific cost ranges and FAQs for solar panel install projects.