Solar & battery rebates, applied correctly at point of sale
The federal SRES discount cuts the hardware price. NSW PDRS adds a separate incentive for connecting to a VPP — and for businesses, for the battery itself. Here's exactly how it works, without the double-dipping myths.
Quick answer
Important — how stacking really works
You cannot claim two upfront hardware subsidies on the same installation. Under the Energy Security Safeguard rules, the hardware discount is delivered through the federal SRES scheme, and the NSW PDRS component is strictly the secondary BESS2 incentive for enrolling that system in an approved VPP/DRA network — not a duplicate state hardware subsidy. Any quote suggesting two hardware rebates on one battery is not compliant.
NSW PDRS battery activities at a glance
The Peak Demand Reduction Scheme is far broader than a residential VPP sign-up. Each activity has its own size band and eligibility rules.
| Activity | Who it's for | System size | What you receive |
|---|---|---|---|
| BESS2 | Households with an eligible battery | Residential | $400 – $1,500 VPP connection incentive (on top of federal SRES) |
| BESS3 | Multi-residential / apartment buildings | 20 – 200 kWh | Upfront PDRS certificate discount on installed cost |
| BESS4 | Small & medium business, behind-the-meter | 20 – 200 kWh | Upfront PDRS certificate discount; min. $5,000 net customer co-payment applies |
| BESS5 | Large commercial & industrial | >200 kWh (to 30 MWh, capped at 10 MWh) | Large-scale upfront certificate discount; UL 9540A reporting required |
Commercial & SME battery storage (BESS4 / BESS5)
Businesses installing behind-the-meter storage from 20 kWh to 200 kWh qualify for substantial upfront discounts under BESS4. Sites above 200 kWh fall under BESS5, which supports installations up to 30 MWh with certificate creation capped at 10 MWh. We size, model and register these through an Accredited Certificate Provider.
The 90-day solar co-location rule
Time your solar right and lift certificates ~49%
For BESS4 and BESS5 projects, if a new solar system rated at at least 25% of usable battery capacity is commissioned within 90 days of the battery, the deemed demand-shifting factor rises from 0.067 to 0.10 kW/kWh — roughly a 49% increase in certificate yield. Co-locating new solar with storage inside that window is the single biggest lever on a commercial incentive. Poor project sequencing forfeits it.
Commercial eligibility & engineering checklist
Commercial PDRS claims carry statutory conditions. A project that misses any of these will be rejected by the Accredited Certificate Provider, so we confirm all of them before quoting.
- Minimum out-of-pocket customer co-payment of $5,000 net (ex GST) for BESS4 claims
- UL 9540A thermal runaway test reporting for BESS5 systems above 200 kWh
- Manufacturer warranty of at least 10 years guaranteeing ≥70% capacity retention
- Inverter continuous output must discharge rated capacity within 4 to 6 hours
- Battery and inverter on the approved product lists, installed by accredited personnel
- NMI interval metering data available for the site, plus compliant CCEW documentation
Processing timeline — what to actually expect
Certificates are not instant. Your Accredited Certificate Provider must inspect documentation, compile CCEWs, verify NMI interval data and submit batches to IPART. Realistically, allow 4–8 weeks post-commissioning for processing. Where the discount is applied at point of sale, you see it on your invoice immediately — the processing window is our administrative timeline, not a wait for your money.
Every rebate available in 2026
Federal STC solar rebate
Small-scale Technology Certificates discount a 6.6kW solar system by $2,000–$3,500. Applied automatically by your CEC-accredited installer.
Federal Cheaper Home Batteries (SRES)
From 1 July 2025 the federal government discounts approved home batteries by ~30% of installed cost. This is the hardware subsidy — it cannot be doubled up with a state hardware subsidy.
NSW PDRS — BESS2 (residential VPP)
A separate $400–$1,500 incentive for connecting an eligible battery to an approved Virtual Power Plant or demand response aggregator. Stacks with the federal SRES discount.
NSW PDRS — BESS3 / BESS4 / BESS5
Apartment, SME and large commercial battery incentives from 20 kWh to 10 MWh of certificate-eligible capacity, subject to co-payment, warranty and testing conditions.
VIC — Victoria
Victorian households can access the Solar Homes rebate (up to $1,400 for panels) plus the federal Cheaper Home Batteries Program for new battery installs.
QLD — Queensland
Queenslanders benefit from the federal STC rebate (typically $2,000–$4,000 off panels) and the 2026 Cheaper Home Batteries Program (~30% off a battery).
WA — Western Australia
WA homes can claim the federal STC rebate and the 2026 Cheaper Home Batteries Program. Synergy DEBS feed-in tariff applies to eligible exports.
SA — South Australia
SA households can combine the federal STC rebate, the federal Cheaper Home Batteries Program and the SA Home Battery Scheme interest-free loan.
ACT — Australian Capital Territory
ACT residents can access the Sustainable Household Scheme zero-interest loan (up to $15,000) and the federal Cheaper Home Batteries Program.
Common rebate questions
Not sure which rebate applies to your site?
One call and we'll confirm your federal SRES entitlement, the correct PDRS activity (BESS2–BESS5) and every eligibility condition — in writing.