Feeder
solar (midday)
–hours outside 198–242 V
–highest customer voltage
–lowest customer voltage
–solar energy produced above 242 V (risk of inverter trips)
–solar this feeder can take without >242 V (current settings)
–line + transformer losses, kWh/day
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Voltage at customers over the day
Red — lowest voltage on the feeder, blue — highest; green band — 198–242 V.
Cheapest fix first: all options for this feeder
| Option | Cost | Hours out | Max V | Min V | Solar at risk | Hosting, kWp |
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Real feeders with voltage problems — PSRC open database (December 2025, June 2026)
Top 400 feeders (≥20 customers) by customers affected. Hours = hours per month in that band and time block. Line length and installed solar are not in open data (ENA has them) — set them by hand after loading a feeder.
| Marz / branch | Settlement | TP / feeder | Customers | Type | Jun 9–13 h: >+10%, h | Dec 1–8 h: >+10%, h | Dec 19–24 h: <−10%, h |
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