Solar in Manderson, WY: 2026 Cost, Savings & Payback
Calculate 2026 solar panel cost, payback, and 25-year bill savings in Manderson, Wyoming. Based on 5 peak sun hours/day, 9.2¢/kWh average electricity rate, Rocky Mountain Power utility context, and current IRS guidance for the ended federal residential clean energy credit.
Solar in Manderson, WY: quick answer
A typical 6kW solar system in Manderson costs about $16,800 before local or state incentives. For 2026 installs, the federal residential clean energy credit is modeled as $0, so the estimated cost remains about $16,800 before any local incentive. It produces about 8,541 kWh per year from 5 peak sun hours/day, saves about $788 per year, and reaches payback in about 21.3 years.
2026 6kW Cost
$16,800
Monthly Savings
$66
Production / kW
1,424 kWh
Panel Count
~15
5
Peak Sun Hours/Day
9.2¢
Avg Rate (¢/kWh)
21.3 yr
Payback Period
$28k
25-Year Savings
Manderson Solar Overview
Calculate Your Manderson Solar Savings
Manderson average: $83/mo
South-facing roofs produce the most energy
Add $8,000-$12,000 for whole-home battery backup
Annual Production
kWh/year
Annual Savings
per year
Net System Cost
after 2026 federal credit
Payback Period
break-even time
Bill Offset and Export Assumptions
Current Annual Bill
$996
Estimated Usage
10,791 kWh
Bill Offset
81%
Used On Site
100%
Exported production is discounted in this planning model instead of being treated as a guaranteed one-for-one bill credit. For Manderson, verify the current Rocky Mountain Power export-credit method and any fixed monthly charges before relying on the payback number.
25-Year Total Savings
$27,634
Monthly Savings
$67
2026 Federal Credit
$0
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Manderson | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $16,800 | $17,100 |
| 2026 Federal Residential Credit | -$0 | $0 |
| Net System Cost | $16,800 | $17,100 |
| Cost Per Watt | $2.80/W | $2.85/W |
Solar Potential in Manderson
Sun Hours vs National Average
Manderson gets 11% more sun than the national average.
Climate Advantages
- 226 sunny days per year
- Average temperature: 43°F — cooler temps actually improve panel efficiency
- Average roof size: 1,890 sq ft — enough for a 105-panel system
Manderson Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
For 2026 planning, JouleIO does not subtract a federal residential clean energy credit. The IRS says the Residential Clean Energy Credit was 30% for eligible property installed from 2022 through December 31, 2025, and is not available for property placed in service after December 31, 2025.
Source: IRS Residential Clean Energy Credit and IRS One Big Beautiful Bill provisions.
Wyoming State Incentives
Federal residential solar credit ended for 2026 homeowner-owned systems placed in service after Dec. 31, 2025; check local utility for additional rebates
Net Metering — Rocky Mountain Power
Rocky Mountain Power offers net metering in Manderson. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Manderson
3.7
Tons CO2 Offset/Year
60
Equivalent Trees Planted
0.8
Homes Worth of Energy
Based on 8,760 kWh annual production with a 6kW system. EPA average: 0.417 metric tons CO2 per MWh, 10,632 kWh per US home.
Solar Energy in Manderson, Wyoming
Manderson, Wyoming receives an average of 5 peak sun hours per day, providing excellent conditions for residential solar installations. With electricity rates averaging 9.2¢ per kWh from Rocky Mountain Power, below the national average, but with rates rising 2-3% annually, the long-term savings are still meaningful.
A typical 6kW solar system in Manderson produces approximately 8,760 kWh per year, saving homeowners an estimated $809 annually. The system pays for itself in about 20.8 years, after which you enjoy essentially free electricity for the remaining 4+ years of the system's warranty life.
Manderson has a solar penetration rate of 3% — indicating early-stage solar adoption with tremendous growth potential as prices continue to fall. The cost of living index of 101.6 (national average: 100) is near the national average.
Other Cities in Wyoming
Methodology & Solar Data Sources for Manderson
How we calculate Manderson solar potential and savings: Solar production estimates use NREL's PVWatts calculator methodology, applied to Manderson's specific solar irradiance (peak sun hours), tilt angle, and azimuth. Cost figures combine NREL's Annual Technology Baseline for system pricing, ENERGY STAR's database for residential PV averages, and EIA Form 861 utility rate data for Wyoming.
- Solar irradiance for Manderson: based on NREL National Solar Radiation Database (NSRDB) — 30-year average peak sun hours per day.
- System sizing assumes residential rooftop installation with standard 350-400W panels, calibrated to typical Manderson household electricity usage.
- Federal tax credit: modeled as 0% for 2026 residential installations because IRS guidance says the Residential Clean Energy Credit is not available for property placed in service after December 31, 2025.
- Net metering assumes 1:1 retail-rate compensation typical in Wyoming (verify with local utility — some have shifted to net billing or avoided-cost rates).
- System lifetime standard 25 years with annual degradation of 0.5%/year per industry warranty norms.
Authoritative US solar data sources:
- NREL PVWatts Calculator — official US solar production estimator
- NREL National Solar Radiation Database — 30-year solar irradiance data
- IRS Residential Clean Energy Credit — 2026 federal residential credit status
- IRS One Big Beautiful Bill provisions — clean energy credit expiration overview
- DSIRE — State Solar Incentives — searchable database for Wyoming
- EIA Electric Power Monthly — Wyoming utility rate data
- ENERGY STAR Solar — efficient solar product database
Solar Disclaimer: Solar savings vary based on roof orientation, shading, system quality, installer markup, financing terms, utility rate plan, and policy changes. Always get 3+ quotes from NABCEP-certified installers and review contracts carefully. Tax credit eligibility depends on tax liability — consult a tax professional.
Reviewed by Brazora Monk · Last updated 2026 · NREL irradiance data per NSRDB latest release
Frequently Asked Questions
How much do solar panels cost in Manderson, WY?
The average cost of a 6kW solar panel system in Manderson is approximately $16,800 before local or state incentives ($2.80/watt). For 2026 planning, this calculator does not subtract a federal residential clean energy credit because IRS guidance says the credit is not available for property placed in service after December 31, 2025. Federal residential solar credit ended for 2026 homeowner-owned systems placed in service after Dec. 31, 2025; check local utility for additional rebates
How many solar panels do I need in Manderson, WY?
A typical 6kW residential solar system in Manderson needs about 15 panels if each panel is rated near 400 watts. That system produces about 8,541 kWh per year in this estimate, or roughly 1,424 kWh per installed kW before shading, roof orientation, and inverter losses are customized.
How many peak sun hours does Manderson get?
Manderson, WY receives an average of 5 peak sun hours per day and approximately 226 sunny days per year. This is above the national average of 4.5 hours, making it an excellent location for solar energy.
What is the solar payback period in Manderson?
The average solar payback period in Manderson is approximately 21.3 years for a 6kW cash-price estimate before local or state incentives. After payback, your solar panels generate essentially free electricity for the remaining warranty life. Over 25 years, bill savings can reach about $26,916 before subtracting installation cost.
Does Manderson have net metering?
Yes, Manderson has access to net metering through Rocky Mountain Power. This allows you to earn credits for excess solar energy sent to the grid, but the final savings depend on the current utility tariff and fixed monthly charges.
Is solar worth it in Manderson, WY in 2026?
Solar may still be worthwhile in Manderson, especially for homeowners with high usage or strong local incentives, but the 21.3-year payback means quote comparison matters. For 2026 installs, JouleIO does not assume a federal residential credit; local incentives and net metering are the main financial drivers.