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Calculate your Distributed Energy Buyback Scheme earnings and optimise export timing
Quick answer
Synergy's DEBS pays 10c/kWh for electricity exported in the 3pm-9pm peak window and 2c/kWh at all other times, up to a combined 50 kWh of exports a day, peak and off-peak together, with nothing credited beyond that. This calculator shows what your solar exports actually earn across a year, and how much a battery that shifts export into the evening window adds.
Sources: Synergy DEBS schedule
DEBS is Synergy's export tariff program that pays you for electricity you export to the grid. The rates vary based on time of day, with higher payments during peak demand periods.
3pm-9pm daily
Counts toward the 50kWh/day cap
All other times
Counts toward the 50kWh/day cap
Typical 6.6kW system exports 5-20 kWh/day depending on usage
Without battery: ~20-30%. With battery discharging at peak: ~50-70%
Store solar during the day and discharge during peak hours (3-9pm) to maximise the 10c/kWh rate. Can increase annual earnings by $200-$500.
Required for WA Battery Scheme rebate. Allows Synergy to remotely discharge your battery during grid events (up to 30x/year), earning you additional credits.
Use the interactive calculator to see how battery timing affects your savings with DEBS rates and A1 tariff.
Typical households use 40-50% during peak hours
Charge battery from excess solar during low-usage morning hours
Use battery power during DEBS peak window (3pm-9pm) to avoid high retail rates. Battery will cover 8.0 kWh of your 10.0 kWh peak usage.
Strategy: By discharging your battery during the DEBS peak window (3pm-9pm), you avoid paying 32.37c/kWh retail rates and can earn 10c/kWh for excess exports.
Tip: Most modern batteries have built-in schedulers. Set your battery to hold charge until 3pm, then discharge during peak hours for maximum savings.
Compare quotes from SAA-accredited local installers — you choose which to act on. No obligation, no pressure.
Synergy customers get $130/kWh back, capped at $1,300.
Activation events credit 70¢/kWh on top of DEBS exports, and signing up is a WA rebate condition.
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