Ultimate Energy Australia

Seamless from Quote to Switch-On I’m beyond impressed with Ultimate Energy. They installed a 19.8kW solar system with a big 42kWh battery at my place, and it’s been a game changer. The install team was professional, tidy, and explained everything in simple terms. I barely use grid power now—even on cloudy days. It’s great knowing I’ve got backup if the power goes out. If you’re thinking about going solar, these guys make it easy and stress-free.

Clear Advice, No Upsell What stood out was their honesty. We were advised against oversizing our battery and instead got a 6.6kW solar system with a modest Anker Solix unit. It’s perfect for our usage. The calculator was spot-on, and the team didn’t push unnecessary upgrades. Trustworthy and efficient.

Fast Turnaround, Great Support From quote to install, everything was done within 14 days. The team handled all compliance paperwork and even followed up with a thank-you note and review link. The battery system works flawlessly, and we feel well-supported. We received a 38 pages customer care pack which includes warranties, serial numbers and photograph as well as battery and solar operation manual.

Commercial Install Success As a small business owner, I needed a reliable solar + battery system for our restaurant Ultimate Energy designed 20kW Solar and 50kW battery custom solution with battery blackout fallback and peak shaving. The install was smooth. Highly recommend for commercial setups.

Many thanks to the Ultimate Energy who team made my Anker Solix x1 battery purchase enjoyable, in particular thanks to Genevieve, who's tireless attention to detail was appreciated. Credit also to the install team in Adelaide, whose attention to detail, cleanliness during installation, and follow-up communications were outstanding.

Adelaide Install—Flawless Execution Installed a solar + battery setup in our Adelaide home. Their local crew handled everything—from grid approvals to battery setup—with zero fuss. We now have blackout protection and full app monitoring. The documentation was clear and branded, which helped us understand emergency procedures. Five stars.

Being in Brisbane, we were worried about delays because of grid application approvals. Ultimate Energy’s team arrived on time, installed a 13kW system with backup battery, and gave us full documentation. The system is performing better than expected. Highly recommended for regional installs.