Case study
We installed a 14.79kW commercial solar system with 48.36kWh battery storage and blackout protection for Seven Lanterns restaurant in Sylvania, Sydney’s Sutherland Shire.
Commercial solar and battery storage in Sydney can pay for itself through energy savings. Seven Lanterns restaurant in Sylvania is projected to save $590 monthly against $578 in finance repayments.
Raiden Technologies delivered a turnkey commercial solar and battery system for Seven Lanterns on the Princes Highway in Sylvania. The job covered 29 Jinko Tiger Neo panels, a Sigenergy three-phase hybrid inverter, six Sigenergy batteries, a Sigenergy Gateway for blackout protection, and a full switchboard upgrade. It was designed so the restaurant runs on stored solar energy through the evening dinner service and early-morning prep.
Seven Lanterns uses most of its power in the evening and early morning, when daytime solar alone doesn’t help. The power bill was about $8,800 a year. The owner wanted to cut it sharply, have backup power during outages, and pay no more each month than he was already spending on electricity.
Raiden designed a 14.79kW rooftop solar system with 48.36kWh of Sigenergy battery storage. Solar made during the day is stored and used through dinner service and the next morning. A Sigenergy Gateway provides automatic blackout protection, and a switchboard upgrade gave the site a safe, compliant three-phase supply. The project was financed through Solaris Finance, and the modelled savings cover the monthly repayments.
Security and electrical systems delivered on this project.
Additional cameras with retention sized to site policy and yard coverage maps.
Sigenergy SigenStor three-phase inverter, up to 98.3% efficient
6 × Sigenergy SigenStor LiFePO4 modules, 48.36kWh total (46.8kWh usable)
Sigenergy Gateway switches the restaurant to battery backup automatically during grid outages
Sigenergy three-phase smart meter for real-time monitoring of use and production
Full commercial switchboard upgrade by Raiden’s licensed electricians
The annual power bill is projected to fall from about $8,824 to about $1,737, and the monthly savings now cover the finance repayment. Solar and battery together are modelled to supply 86% of the restaurant’s power, and the kitchen stays running during blackouts.
Testimonial
““We wanted to get our power bills under control without a big upfront cost, and Raiden made that happen. The finance repayments are covered by what we’re saving, so the system effectively pays for itself. We run off the battery through dinner service, and knowing the kitchen stays on during a blackout is a huge relief. The install was clean and professional, and the team explained everything.””
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It depends on system size, battery capacity and site works. For Seven Lanterns, a 14.79kW solar system with 48.36kWh of battery storage, a gateway and installation came to $27,149.30 incl. GST after STC rebates. Raiden sizes each system from the business’s real usage and bills.
Yes. If the monthly energy savings equal or exceed the finance repayment, the system costs nothing extra each month. Seven Lanterns is projected to save about $590 a month against a 60-month repayment of about $578.
Only if it’s installed with backup hardware. Seven Lanterns has a Sigenergy Gateway that switches the restaurant to battery power automatically when the grid goes down, so essential circuits stay on.
Yes. Eligible businesses can get Small-scale Technology Certificates (STCs) for solar panels, and battery STCs under the federal Cheaper Home Batteries Program, which also covers small businesses. On this project, rebates took more than $20,600 off the price. Rebate values change over time, so ask Raiden for current figures.
Restaurants use a lot of power in the evening, so solar paired with a battery gives the best return. Stored daytime solar runs the dinner service. For Seven Lanterns, battery storage lifts how much of the solar the restaurant uses itself from 34% to 72%, with a projected 3–4 year payback.
Next step
Tell us about your site requirements, compliance needs and security or electrical scope. Raiden delivers integrated capability under one accountable contract.
