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Solar and Battery for Cafes and Restaurants: Cutting Energy Costs in Food Service

Guide · Commercial solar & battery · ~5 min read

Cafes and restaurants run power-hungry gear from open to close, and energy is often one of the biggest fixed costs behind rent and wages. Solar and battery can take a real bite out of those bills if the system is matched to how your kitchen actually runs.

Why Food Service Is a Good Fit for Solar

Cafes and restaurants have a load profile most installers would call predictable: fridges and freezers run around the clock, while cooking equipment, extraction fans, dishwashers and lighting spike during prep and service. That steady daytime demand lines up well with when rooftop solar is generating.

Because so much of your consumption happens while the sun is up, a well-sized system can offset a meaningful share of what you'd otherwise pull from the grid. The exact share depends on your roof, your opening hours and your equipment, which is what a site review is for.

• Refrigeration runs 24/7 and is a constant baseline load
• Cooking and extraction peaks sit squarely in daylight hours
• Dishwashers and hot water add afternoon and evening demand
• Predictable patterns make system sizing more accurate

Where the Money Goes in a Commercial Kitchen

Before you size any system, it helps to understand where your energy actually goes. Many food service bills are driven not just by how much power you use, but when you use it and the demand charges tied to your peaks.

Commercial tariffs often include demand or capacity charges based on your highest usage in a billing period. A single busy lunch or dinner service can set that peak, which is where a battery combined with smart control can earn its keep.

• Energy charges for total consumption
• Demand charges tied to your highest usage peaks
• Time-of-use rates that cost more in peak periods
• Supply and network fees that vary by site and provider

How Battery Storage Changes the Equation

Solar alone covers daytime generation, but a lot of food service energy use happens early morning, late evening and overnight for refrigeration. A battery lets you store surplus solar and use it when the sun's down or when grid prices climb.

This is where ATI's AI-driven energy arbitrage comes in. The battery charges when power is cheap and discharges or exports when it's dear, working off your tariff rather than a fixed schedule. For a business running long hours across changing peak periods, that flexibility can be significant.

Savings vary by site, tariff and network, so none of this is financial advice. The point of pairing storage with solar is to give you control over when you draw from the grid, not just how much.

Practical Considerations for Cafes and Restaurants

Food service sites come with their own quirks. Roof space may be shared, shaded by neighbouring buildings or cluttered with existing extraction and HVAC gear. Leased premises raise questions about who owns and benefits from the system.

None of these are dealbreakers, but they do shape the design. A proper site review covers access, switchboard capacity, roof condition and how your equipment cycles through a typical trading day.

• Available and unshaded roof area
• Switchboard and electrical capacity for new gear
• Lease terms and who benefits from the install
• Space for a battery and safe equipment placement
• Keeping refrigeration protected during any works

Why Work With ATI

ATI is an Australia-wide installer with an in-house team, so there are no subcontractors handing your job around. We're CEC and SAA accredited and scale from small 6.6kW setups through to MW-scale commercial systems.

We've delivered real commercial projects including a 415kW rooftop at DB Santasalo in Bulli NSW, along with work for Garmin, Goldschmidt, a Hunter Valley vineyard and Kingswood. That range means we can match a system to a single cafe or a full restaurant group.

Next Step: A Site Review

Every food service site is different, and the only way to know what solar and battery can do for yours is to look at your actual bills, tariff and equipment. Real figures come from a site review, not a rule of thumb.

If you'd like to understand what's possible for your cafe or restaurant, get in touch with ATI for a no-pressure site review and we'll map out a system that fits how your kitchen runs.

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