Battery storage sized to your home, not a brochure.
JJ Electrical sizes every battery to your actual consumption data. When the grid goes down or prices spike, your home keeps running — because the system was built for your roof and your bill.
Inverter, battery, array — one system.
Battery and solar underperform when they're specified separately. JJ designs the inverter, battery bank, and panel array as a single integrated unit — sized against your real usage history.
We assess your switchboard capacity, roof orientation, and daily load profile before specifying a single component. The result is a system that charges fast, discharges intelligently, and doesn't leave capacity on the table.
Installed across Greater Sydney.
Every image below is a completed JJ installation — garages, laundries, and utility rooms across Sydney. Hardware that lives in your home, not a showroom.
Know your numbers before you buy.
JJ assesses your consumption data and roof setup to specify the right battery capacity — no guesswork, no oversell. Book a site assessment and get a fixed quote.