South Dakota power outages: what size power station you need (SD)
In 2025, the average South Dakota electricity customer lost power for 4.5 hours, across 1.33 outages (EIA). To keep a fridge, router and lights running through one average outage you need about 420 Wh.
One average South Dakota (SD) outage lasted 3.4 hours (268.5 SAIDI minutes divided by 1.33 SAIFI interruptions). Covering South Dakota's full 4.5-hour annual outage total without recharging requires 561 Wh. Excluding major storm events, South Dakota customers averaged 1.0 hours (61.4 minutes) across 0.76 non-storm interruptions, ranking #24 of 51 states for total outage duration (compared with 1.4 hours in 2024).
Three lowest $/Wh stations covering an average South Dakota outage (420 Wh)
| $/Wh | Price | Capacity (Wh) | Output (W) | Chemistry | Product | Buy |
|---|---|---|---|---|---|---|
| $0.08 | $149 | 1,920 Wh | 2,500 W | LiFePO4 | ALLPOWERS R2500 V2 + SE160 160W Solar Panel Solar Generator Kit | Buy at ALLPOWERS Store for $149 |
| $0.29 | $899 | 3,072 Wh | 3,600 W | LiFePO4 | Pecron F3000LFP Portable Power Station 3600W 3072Wh | Buy at Pecron Store for $899 |
| $0.31 | $629 | 2,048 Wh | 2,400 W | LiFePO4 | FOSSiBOT F2400 Portable Power Station | Buy at FOSSiBOT Store for $629 |
South Dakota residential electricity price and 1,000 Wh grid recharge cost
South Dakota residential electricity averaged 15.15 cents per kWh in August 2026 (EIA), ranking #35 of 51 US jurisdictions (compared with 13.90 cents per kWh in August 2025). At South Dakota's 15.15 ¢/kWh tariff and 85% AC charging efficiency (17.82 ¢ per stored kWh), fully recharging a 1,000 Wh power station from a South Dakota wall outlet costs $0.18.
Solar panel output near Sioux Falls, SD and 200 W recharge time
1 kW of fixed panels near Sioux Falls makes about 2.67 kWh per day in December and 4.99 in June (NREL PVWatts). Recharging a depleted 1,000 Wh power station from a 200 W solar panel near Sioux Falls, SD (43.54°N, -96.73°W) at 90% MPPT charge efficiency takes 2.1 days in December (481 Wh/day net solar harvest, ranking #26 of 51 for winter sun) and 1.1 days in June (898 Wh/day net solar harvest).
Monthly solar yield near Sioux Falls, SD (1 kW DC array)
| Month | Sioux Falls 1 kW monthly (kWh) | Sioux Falls 1 kW daily (kWh/day) | 200 W panel net harvest (Wh/day) | Days to refill 1,000 Wh |
|---|---|---|---|---|
| January (Sioux Falls, SD) | 97.8 kWh | 3.15 kWh/day | 568 Wh | 1.8 d |
| February (Sioux Falls, SD) | 117.4 kWh | 4.19 kWh/day | 755 Wh | 1.3 d |
| March (Sioux Falls, SD) | 132.2 kWh | 4.26 kWh/day | 768 Wh | 1.3 d |
| April (Sioux Falls, SD) | 138.7 kWh | 4.62 kWh/day | 832 Wh | 1.2 d |
| May (Sioux Falls, SD) | 143.3 kWh | 4.62 kWh/day | 832 Wh | 1.2 d |
| June (Sioux Falls, SD) | 149.7 kWh | 4.99 kWh/day | 898 Wh | 1.1 d |
| July (Sioux Falls, SD) | 167.2 kWh | 5.39 kWh/day | 971 Wh | 1.0 d |
| August (Sioux Falls, SD) | 153.3 kWh | 4.95 kWh/day | 890 Wh | 1.1 d |
| September (Sioux Falls, SD) | 139.5 kWh | 4.65 kWh/day | 837 Wh | 1.2 d |
| October (Sioux Falls, SD) | 120.0 kWh | 3.87 kWh/day | 697 Wh | 1.4 d |
| November (Sioux Falls, SD) | 97.8 kWh | 3.26 kWh/day | 587 Wh | 1.7 d |
| December (Sioux Falls, SD) | 82.8 kWh | 2.67 kWh/day | 481 Wh | 2.1 d |
Data sources and verification dates for South Dakota
- South Dakota outage duration and frequency: EIA Electric Power Annual, Table 11.3 (2025 and 2024) (South Dakota SAIDI with major events: 268.5 minutes; SAIFI with major events: 1.33 interruptions; 76.5% of South Dakota customers reported; fetched 2026-11-06).
- South Dakota residential electricity price: EIA Electric Power Monthly, Table 5.6.A (August 2026) (South Dakota residential retail rate: 15.15 cents per kWh in August 2026; fetched 2026-11-06).
- Sioux Falls, South Dakota solar irradiance and DC yield: NREL PVWatts V8 (NREL PVWatts V8 / NASA POWER Tilted Irradiance Climatology (1 kW DC, tilt=lat, losses=14%)) (reference city: Sioux Falls, SD at 43.5446°N, -96.7311°W; fetched 2026-11-06).
Compare South Dakota against all 50 US states and DC on the state outage and solar hub.