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Federal Credit Update: The 30% solar ITC and home improvement credits expired Dec 31, 2025. State & local programs may still offer savings.See what changed →

Solar Panel Installation Cost in O'fallon, MO

Find solar panel installation costs and current state energy rebates for O'fallon, MO. Compare solar panel cost, local incentives & installer ratings. Federal credits expired Dec 2025.

Avg System Cost

$12,473

Net After Incentives

$12,473

Solar Panel Cost & Savings in O'fallon

Average System Cost

$12,473

$2.49/W (median: $2.35/W)

O'fallon Savings Breakdown

ItemAmount
Average System Cost$12,473
Estimated Net Cost$12,473
Price range:$10,602
$14,344

Data sourced from EnergySage & Rewiring America APIs. Incentive values are estimates based on a representative homeowner profile. Run the calculator for a personalised breakdown.

Solar Panel Installers in O'fallon

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O'fallon Quick Facts

  • 🏠 Federal ITC expired Dec 2025
  • 💡 Cost per watt: $2.49/W
  • 📈 Above-avg: $14,344
  • 📉 Below-avg: $10,602

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