What size solar system do you need?

Seasonal plan value per solar kWh = 75% × 40¢ (Apr–Oct) + 25% × 5.29¢ (Nov–Mar) ≈ 31.3¢. Assumes 75% of yearly production falls April–October, about 30% of production is used in the home as it is made (the same seasonal rate applies to imports and exports, so this doesn’t change the energy value; delivery savings are left out), and a system sized to your last 12 months of use. Example rates: Prairie Power seasonal solar plan, October 2026. Rates vary by retailer and change over time.