Solar & battery in Western Australia.

Yes — in Western Australia the WA Residential Battery Scheme and the Federal Cheaper Home Batteries Program (CHBP) stack, so eligible households can claim both on the same battery install. The WA Residential Battery Scheme gives $1,300 for Synergy (SWIS) customers or $3,800 for Horizon Power customers, and the Federal Cheaper Home Batteries Program adds ~30% off via Small-scale Technology Certificates (STCs) that your installer typically applies as an upfront discount. Combined, that’s roughly $3,900–$4,000 off a typical 10 kWh battery for Synergy customers (about $6,300 for Horizon Power) as at July 2026, which is why it is still a strong year for WA homeowners adding storage to an existing or new solar system. One condition applies: VPP enrolment is mandatory for the WA rebate, so the battery must be able to join an approved Virtual Power Plant. Eligibility, product lists and funding caps can change, so confirm current terms before you commit.

Yes. In Western Australia the WA Residential Battery Scheme requires participation in an approved Virtual Power Plant (VPP) for at least the first year to receive the rebate, so any battery you install under the scheme must be VPP-capable and enrolled. A VPP links thousands of home batteries so they can be dispatched together during grid-peak events. Synergy and selected aggregators run VPPs that cycle a portion of your battery during those events — you keep your reserve capacity for your own home, and you earn credits for the energy discharged to the grid. Day to day your battery still stores your solar and powers your home first; the VPP only calls on a limited share when the grid needs support. After the first-year commitment you can review your VPP arrangement. Confirm the current terms with your retailer before enrolling.

The Synergy DEBS (Distributed Energy Buyback Scheme) feed-in tariff is worth more when you export during the peak window: DEBS pays a higher rate for electricity exported in the late afternoon / evening peak window, and a lower rate during the day. That time-of-day structure changes the best way to use solar in Western Australia. Without storage, most rooftop solar exports in the middle of the day when the rate is low. With a battery, you charge during the day from your own panels and export during peak — which dramatically improves payback compared to the old flat feed-in tariff, because you are shifting energy from the low-value daytime rate to the higher-value evening rate. It also means self-consuming stored energy at night avoids buying grid power. Exact DEBS rates are set by the scheme and can change, so check the current rates before modelling returns.

Both. Mission Green services the entire SWIS (Synergy / Western Power) network — Perth metro, the South West, and the Goldfields fringe — as well as Horizon Power regional towns including Geraldton, Carnarvon, Karratha, Port Hedland, Broome and Esperance. Which network you are on matters in Western Australia because it determines your rebate: Horizon customers qualify for the higher $3,800 battery rebate under the WA Residential Battery Scheme, while Synergy (SWIS) customers receive the $1,300 amount. It also affects connection approvals, export limits and feed-in arrangements, which differ between the interconnected SWIS grid and Horizon's separate regional systems. When you enquire, tell us your town or suburb and your electricity retailer so we can confirm the correct network, the rebate you are eligible for, and any local connection rules that apply to your solar and battery install before we quote.

Yes — Mission Green designs off-grid systems for remote Western Australia, primarily for commercial and industrial sites such as mines, camps and pastoral stations where extending the grid is impractical or costly. For these locations we design hybrid solar + battery + diesel systems intended to cut diesel runtime substantially, so the solar and battery carry the load through the day and the generator only runs to cover shortfalls, cutting fuel use, maintenance and emissions. The actual reduction depends on the site — every off-grid design is site-specific: the right array size, battery capacity and generator backup depend on your daily load profile, seasonal sunlight and reliability needs, so we size the system around your actual usage rather than a fixed package. To start, get in touch via the contact form with your site location and current diesel use, and we can scope a system suited to your remote WA operation.