SunHarvest

SunHarvest connects to your Tesla Powerwall and does three things: shows what your home is doing right now, controls the battery from rules you write in plain English, and, if you switch it on, plans the day around your electricity prices and the solar forecast using AI models for the best predictions and control.

SEE IT
• Live solar, home, battery and grid flows, and the battery's charge with time to full or to reserve.
• Energy history by day, week, month and year, with what you spent, earned and saved.
• Your real tariff, including Octopus Agile half-hourly prices, with the cheapest and dearest slots marked.
• A solar forecast built from the weather and your own roof, calibrated to your panels over time.
• A home screen widget with the figures you choose.

CONTROL IT
• Change backup reserve, operation mode, Storm Watch, grid charging and export in seconds.
• Rules that read as sentences: when the import price falls below 10p, charge from the grid; at 16:00, if the battery is above 60%, export until 19:00.
• Rules can trigger on prices, forecasts, the sun, the clock or any live reading, and can hold a setting against changes made elsewhere.

LET THE AI PLAN IT (Pro)
• Write your goal in your own words: keep a power-cut cushion, export at peak, only buy cheap.
• The planner turns it into a small set of rules, replans every few hours, and explains each one.
• Runs on your own AI account (Google Gemini, Anthropic, OpenAI or compatible), with your key. A free Gemini key takes two minutes.

WHAT IT NEEDS
• A Tesla Powerwall and the Tesla account it is registered to. You sign in with Tesla directly; SunHarvest never sees your Tesla password.
• Optional: your location and roof details for the forecast, and your tariff for the money figures.

PLANS
Every new account starts with 30 days of the full product. After that, live view, history, tariffs and your own rules stay free with ads; Pro adds AI mode, faster updates and the savings figures, with no ads.

Not affiliated with Tesla. Tesla and Powerwall are trademarks of Tesla, Inc.