Before a small business invests in commercial solar, it should check five things: its bills and tariff, when it uses power during the day, whether the roof and switchboard can take a system, what the lease allows, and how the system will be monitored. At Entire Trades, we work through this checklist with workshops, shops, offices and sheds across Maitland, the Hunter Valley and the Central Coast before we design anything.

Key Takeaways

• Start with 12 months of electricity bills so you understand your actual costs, tariff and any demand charges before talking system size.
• Check that your roof, switchboard and lease can practically and legally support a solar system and, if needed, a battery.
• Match the system design to when your business uses power, not just how much it uses in total.
• Plan for monitoring, maintenance and future changes to your site so the system keeps paying its way.
• Entire Trades can assess your site and bills, then design and install a system to suit. Call (02) 4905 0901 or read about our commercial solar panels in Maitland.

Introduction: Why Small Businesses Are Looking at Commercial Solar Now

Small businesses are looking at commercial solar because rising electricity costs hit hardest during trading hours, which is exactly when solar panels produce power. Whether you run a workshop in Maitland, a cafe in Cessnock or a warehouse on the Central Coast, a well-designed system can cut what you buy from the grid and give you more control over your energy costs.

Not every system suits every site, though. The usual drivers are high daytime bills, unpredictable tariffs, interest in renewable energy and pressure on overheads. The details you confirm before signing a contract decide whether the system actually delivers.

Entire Trades is a family-owned, Maitland-based team that has served the Hunter Valley and Central Coast since 2017. We handle commercial solar from site assessment and system design through to installation and grid connection. This guide doesn't quote generic payback periods or rebate amounts, because those depend entirely on your site. Instead, it covers what to check first.

Step 1: Pull Together Your Electricity Bills and Contracts

The first step is to gather at least 12 months of electricity bills for each site, because they show your seasonal patterns and the charges solar can and can't reduce. Summer air conditioning, winter heating, year-round refrigeration and busy trading periods all show up in a year of bills.

On a typical NSW small business bill, look for:

• a fixed daily supply charge, which you pay regardless of usage
• a usage charge per kilowatt-hour, which may vary by time of day
• a demand charge, if your tariff has one, based on your peak power draw
• any existing solar feed-in credit.

Note your tariff name and structure, your contract end date, and any conditions around meter changes or solar exports. These can affect whether you can move to a better tariff once solar is running.

Step 2: Understand Your Energy Usage Patterns, Not Just Totals

What matters most for commercial solar is your load profile: when your business uses power during the day and week, not just the monthly total. Businesses that use most of their power during daylight hours get the most from solar, because that's when the panels are producing.

• Cafes peak through breakfast and lunch, with coffee machines, ovens and air conditioning running hard in daylight.
• Workshops and mechanics usually draw steady power through the working day.
• Cold stores with round-the-clock refrigeration use plenty of power outside sun hours too.
• Offices typically peak during business hours with air conditioning and IT loads.

Interval data from a smart meter shows exactly when your site draws the most power, usually in 15 or 30-minute blocks. Without it, system design is guesswork. Entire Trades reviews your interval data and bills so the system is sized around your real demand.

Step 3: Check Your Current Electricity Tariff and Demand Charges

Your tariff structure can make or break the business case for commercial solar, because solar mainly reduces usage charges and only cuts demand charges if your peak happens while the sun is up.

• Single-rate tariffs charge the same rate whenever you use power.
• Time-of-use tariffs charge more in peak periods and less off-peak.
• Demand tariffs add a charge based on your highest power draw in a period, measured in kW.

Demand charges can hit businesses with compressors, welders or large refrigeration hard. If your biggest power draw happens early in the morning or in the evening, solar alone may not touch that part of the bill. Tariffs can also change at the start of each financial year.

Feed-in tariffs for exported solar are generally well below what you pay for grid power, so using as much of your own solar on site is almost always the priority. Talk to your retailer about which tariff is likely to suit once solar is operating.

Step 4: Decide What You Want Solar to Achieve for Your Business

Getting clear on your goals before you get quotes helps you compare designs properly, because a system built for bill savings looks different from one built for backup power. Common goals include:

• cutting daytime bills and grid imports
• reducing exposure to future price rises
• improving your sustainability credentials with customers
• keeping critical loads running during outages, which requires a battery.

Rank these priorities. Your answer affects system size, panel orientation, equipment choice and whether to include a battery now or later. Small-scale technology certificates can reduce the upfront cost of eligible systems, and some businesses use finance options such as power purchase agreements. Your accountant can advise on any tax treatment.

Entire Trades provides free, written, itemised quotes that show how each design option lines up with your goals.

Step 5: Assess Your Roof or Ground Space for Solar Panels

Every commercial roof needs a proper assessment before solar goes on, because roof condition, structure, orientation and shading all affect safety and output. Common commercial roofs around the Hunter Valley and Central Coast include metal sheds and warehouses, low-pitch retail buildings and older tiled roofs on converted houses.

• Roof age and condition: leaks, rust, worn fasteners or brittle roofing should be fixed first. Putting panels on a roof that needs replacing soon is poor planning.
• Structural capacity: the framing must handle the extra weight and wind uplift, and mounting systems must meet AS/NZS 1170.
• Orientation and shading: north-facing surfaces give the most output. East and west faces still work but produce at different times. Shade from neighbouring buildings, trees or signage reduces output.
• Ground mounts: rural businesses on acreage may suit a ground-mounted array, planned around vehicle and machinery movements.

Entire Trades inspects sites across Maitland, the Hunter and the Central Coast to measure usable space and identify obstacles such as vents, skylights and awnings.

Step 6: Check Your Switchboard, Wiring and Metering

Your switchboard, wiring and meter need checking early, because older electrical infrastructure is one of the most common sources of extra cost in commercial solar projects.

• Switchboard condition: the main board needs space for new breakers and a solar isolator, and must meet current standards. A full, outdated or damaged board will need upgrading.
• Older premises: asbestos-backed boards, undersized consumer mains and non-compliant cabling aren't unusual in older commercial buildings. Fixing mains and metering issues needs a Level 2 Accredited Service Provider.
• Supply and metering: a basic meter needs replacing with a smart meter so imports and exports are measured correctly. Whether your site is single-phase or three-phase also affects system size. Our guide to 3 phase power in Australia explains the difference.

Entire Trades holds NSW Electrical Licence 370051C and Level 2 ASP authorisation, so we can handle switchboard work and grid connection as part of the project, with no separate trades to coordinate.

Step 7: Consider Your Lease, Strata and Landlord Approvals

If you lease your premises, you'll need written landlord consent before installing solar, so check your lease before getting too far into quotes.

• Check who owns and can alter the roof, how fixtures are treated at the end of the lease, and whether you'd need to remove the system and make good.
• For strata-titled properties, the owners corporation may need to approve work on common property such as the roof or main switchroom.
• Agree with your landlord on who owns the system, what happens if you leave early, and whether any benefit flows through rent or electricity on-charging.

Entire Trades can supply design drawings and compliance documentation to support landlord or strata approvals. For the lease itself, get independent legal advice.

Step 8: Decide Whether to Include a Commercial Battery Now or Later

A commercial battery is worth including now if your business uses a lot of power after hours, pays significant demand charges, or needs backup for critical equipment. Otherwise, a battery-ready design lets you add one later.

Batteries store surplus solar for the late afternoon and evening, reduce grid imports and can help manage demand charges by limiting your peak draw. They add cost, so the decision should be based on your load profile and tariff. Batteries can be particularly valuable for:

• medical clinics that need backup for fridges and equipment
• hospitality venues with refrigeration that must run through outages
• businesses on demand tariffs where trimming peak kW saves money.

A battery-ready design leaves space near the switchboard and capacity in the board for a future battery. Entire Trades installs Tesla and SigEnergy commercial batteries and can work through how they'd suit your site's demand profile.

Step 9: Plan for Solar Monitoring and Ongoing Maintenance

Commercial solar needs regular monitoring and basic maintenance to keep performing. It isn't set-and-forget.

• Monitoring: inverter portals show real-time generation and system health. Multi-site businesses can use fleet dashboards, and some systems track self-consumption, exports and fault alerts.
• An energy champion: give one person the job of logging in monthly, checking performance and flagging alerts.
• Maintenance: periodic visual checks of panels, frames and wiring, cleaning where dust or bird droppings build up, and scheduled electrical inspections.

Entire Trades sets up solar monitoring as part of commercial installs, and every job is backed by our workmanship guarantee.

Step 10: Compare Commercial Solar Quotes Like-for-Like

To compare commercial solar quotes fairly, make sure each one is based on the same usage data and goals, and that each lists exactly what's included.

• Compare panel and inverter brands and models, manufacturer and workmanship warranties, and mounting hardware.
• Check whether monitoring setup, design, network applications, switchboard upgrades, metering changes and after-sales support are included.
• Look for itemised line items covering materials, labour and electrical work.

The cheapest headline price isn't always the best value. A quote that skips necessary switchboard work or uses lower-grade equipment can cost more over the life of the system. Every Entire Trades quote is free, written and itemised.

Step 11: Check Accreditation, Licensing and Safety

Before anyone climbs onto your roof, confirm the installer holds an NSW electrical contractor licence, has solar accreditation and, where mains or metering work is needed, Level 2 ASP authorisation.

• Confirm the installer is licensed and accredited for grid-connected solar.
• Check that the panels and inverters are on the approved products list, which matters for warranties and certificate eligibility.
• Ask for copies of licences and insurance, and find out who supervises the job day to day.

Entire Trades holds NSW Electrical Licence 370051C and Level 2 ASP authorisation, and our own team handles site assessment, design, installation and grid connection, so you have one point of accountability. For more on what to look for, read how to choose the right commercial electrician.

Step 12: Think About Future Changes to Your Site and Operations

Solar is a long-term asset, so design it around where your business is heading as well as how it runs today. Changes to plan for include:

• adding EV chargers for staff, fleet or customers
• new machinery or longer trading hours
• more air conditioning or refrigeration
• expanding into a neighbouring tenancy.

If you might move in a few years, a conservative design may make sense. If you plan to grow on the same site, allow for spare inverter capacity, a roof layout that can take more panels, and switchboard space for a battery. Keep the system design, single-line diagrams and connection details on file for future electricians. Entire Trades can design for staged expansion so the system grows with your business.

Step 13: How Entire Trades Helps Small Businesses Go Solar

Entire Trades follows a five-step process for commercial solar, with the same team responsible from the first phone call to grid connection.

1. a phone discussion and bill review to understand your costs and goals
2. an on-site assessment of your roof, electrical infrastructure and any site-specific issues
3. a system design based on your load profile and interval data
4. a free, written, itemised quote covering materials, labour and electrical work
5. installation, testing and grid connection by our licensed team.

Our focus is on reliable, compliant installations, not one-size-fits-all packages. For more on system sizes, approvals and timeframes, visit our commercial solar panels Maitland page.

Step 14: Next Steps and How to Get Tailored Advice

Before investing in commercial solar, understand your bills and tariff, check your roof and electrical setup, sort out any lease issues, and plan for monitoring.

If you're in Maitland, Newcastle, the Hunter Valley or on the Central Coast, Entire Trades can provide an on-site assessment and a free, written, itemised quote. Call (02) 4905 0901 to get started, or see more about our commercial solar work.

Frequently Asked Questions About Commercial Solar for Small Business

Do I Need to Own My Building to Install a Commercial Solar System?

No. Tenants can install solar with written landlord consent, but check your lease for clauses on alterations, ownership of fixtures and end-of-lease obligations such as removing the system and making good the roof. Strata properties usually need owners corporation approval. Get independent legal advice on the lease itself.

Will Commercial Solar Eliminate My Energy Bills Completely?

Most businesses still have a power bill after installing solar. You'll still pay the daily supply charge, and power used at night or on heavily overcast days comes from the grid. The aim is to cut your grid usage meaningfully and reduce exposure to price rises, not to promise a zero bill.

How Do Demand Charges Affect My Commercial Solar Savings?

Demand charges are based on your highest power draw in a billing period, often the peak 15 or 30-minute interval. If that peak happens outside solar hours, solar won't change it much. If it happens while the panels are producing, solar can reduce it. A battery or staggering when big equipment runs can also help.

Can I Add a Battery to My Commercial Solar System Later On?

Yes, if the system is designed to be battery-ready from the start, with space and switchboard capacity planned in. Many businesses install solar first to cut daytime bills, then add a Tesla or SigEnergy commercial battery as operations or tariffs change.

How Long Does a Typical Commercial Solar Installation Take?

It depends on network approval times, site complexity, roof condition and any switchboard or metering work. The on-site installation is often the shortest part, while approvals take longer. Entire Trades sets out the expected timeframes for design, approvals and installation in every written quote, so you can plan around your trading hours.