BatteryProfit syncs Amber Electric's real-time wholesale rates to your Tesla Powerwall every 5 minutes. Your battery charges when prices are low and holds off when they spike.
Start Free 30-Day Trial Open DashboardSign in with your Tesla account. Takes a couple of minutes. We use Tesla's official Fleet API - your password is never shared with us.
Generate a bearer token in the Amber app under Developer Settings. Paste it into BatteryProfit and we'll auto-detect your site.
Every 5 minutes, we fetch your wholesale import and feed-in rates from Amber and push them to your Powerwall as a 48-slot tariff. Tesla handles the rest.
Amber passes through the actual NEM wholesale rate. Prices change every 30 minutes based on grid supply and demand. A battery means you can avoid buying during the expensive half-hours and charge when it's cheap.
Unlike retailers that pay a flat feed-in tariff, Amber pays the actual wholesale price for your exports. During high-demand evenings, your solar exports can be worth far more. We sync these rates so Tesla can factor export value into its decisions.
We push Amber's current and forecast prices to your Powerwall as 48 half-hourly tariff slots - the same granularity as the NEM spot market. Tesla's time-of-use logic then has accurate rate data for every 30-minute window.
Once connected, BatteryProfit runs in the background. No app checking, no manual scheduling. Your Powerwall responds to real wholesale prices around the clock.
The NEM sets a new spot price every 30 minutes based on supply and demand across the grid. Amber passes this through to you directly, plus network and regulatory costs, with no retail energy markup. You pay Amber a flat monthly subscription instead.
Overnight and midday (when solar is flooding the grid), wholesale prices can drop very low - sometimes even negative. Late afternoon and early evening, when solar fades and everyone gets home, prices tend to climb. That price spread is exactly what a battery can take advantage of.
Amber Electric currently operates in Victoria, South Australia, New South Wales, the ACT, and South East Queensland. If you're in one of these regions with a Powerwall, BatteryProfit can sync your prices.
Amber flags price spikes in their API. We track spike status alongside prices, which means you can build automations that respond specifically to spike events - like holding battery reserve when the grid is under stress.
That's $1.67/month. One good price dip that your battery catches can cover that.
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