Priestley Place Charge HQ

15kW Fox ESS H3 · CQ6-L8 battery stack (47.92kWh nominal) · 44 panels / 20.9kW array
Monitoring only
 
Data sources

Inverter Connection

FoxESS Cloud
Only change this if you're routing through your own CORS proxy in front of FoxESS Cloud.
Sent as X-Proxy-Secret on both FoxESS and Solcast calls if this and the matching base URL below are set — one worker, one secret, both APIs.

Forecast Sources

BOM's own open-data feed has had outages during platform upgrades — if a BOM request fails, this automatically falls back to the blended model for that run.

Site & System

 
System losses (soiling, wiring, inverter) — typical 0.78–0.85
Usage history & accuracy

Usage History

For prediction
Log at least 3 days and the forecast below will predict tomorrow's usage from your own history (recency-weighted, split by weekday/weekend, and temperature-adjusted once you've logged a few hot/cold days) instead of the fallback figure. Logging actual solar made lets the Prediction Accuracy card below check the weather/Solcast/BOM forecasts against reality.

Battery SoC Accuracy

Predicted charge curve vs. what FoxESS actually recorded
Yesterday's comparison pulls automatically once a day, alongside the other actuals — no action needed for that. Use the date picker above to check a different day, or re-check one manually.

Real Usage: TOU vs Flat

From your energy provider's interval export — uses the tariffs in the Tariffs tab
Tariffs

My Actual Plan

Which plan you're really billed under — drives the Import/Export $ figures shown on the main forecast, so they reflect your real cost rather than always assuming Time of Use.

Time of Use

Flat Rate

VPP Event Window

Optional — leave all three blank if you're not on a VPP plan. Applies on top of whichever plan (Time of Use or Flat Rate) is active, since the grid can't tell VPP export apart from ordinary export.
When set, the plan will weigh selling stored battery charge into the grid during this window against holding it for a later peak-avoidance saving, and recommend whichever is worth more — shown as a "VPP sell" item below, not yet sent to any device.
Provider Comparison
Save other providers' rates here to compare against your real usage — this doesn't affect the live plan above, which always uses the "Tariffs" section as your active plan. A provider's fields here are all optional; fill in only what you actually have a quote for.
Planning tool, not yet connected to the inverter. Solar output is estimated from Open-Meteo's shortwave radiation forecast at your site (kWp × GHI/1000 × performance ratio, with a simple temperature derate above 25°C) — treat it as an engineering estimate, not a guarantee. Load is your typical daily usage spread over a chosen shape, not a measured profile. The scheduler is a rule-based charge/discharge planner (solar-first, battery-before-grid, pre-charge from off-peak grid only when the forecast can't otherwise cover the next peak window) — it doesn't push anything to the H3. Once you're ready to connect (FoxESS Cloud API or local Modbus), this same logic can drive real setpoints.