Comstel Energy · Commercial Solar · Australia

Commercial Solar
Power Your Business with the Sun

Cut electricity costs, protect against future price rises, and demonstrate real sustainability leadership with commercial-grade solar PV systems designed, supplied, and installed by Comstel Energy. From 30 kW rooftop systems to 1 MW+ ground-mount and carpark canopies — tailored to your roof, load profile, and budget.

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30 kW – 1 MW+ Free Site Assessment CEC-Approved STC Rebate Handled
Rooftop
Ground
Carpark
Hybrid
Free Site Assessment
Tell us about your premises and energy bills — we'll model the system, payback, and return all in one quote.
Australian Commercial Solar
Built for the Sunburnt Country

Australia has some of the world's best solar irradiance, and commercial electricity prices are among the highest. That combination makes commercial solar one of the strongest infrastructure investments available to Australian business — with payback periods that have shortened dramatically as panel prices have fallen and grid prices have risen.

30 kW+
System Size
From SMB to MW-scale
3-7 yr
Typical Payback
Site & usage dependent
25 yr
Panel Warranty
On Tier-1 modules
CEC
Approved Install
All STC rebates handled
Why Commercial Solar Now
Four Strategic Reasons to Install Today
Cost Savings
Cut Electricity Costs Immediately
Solar generates power during business hours when commercial rates are highest. Most Australian businesses see 30-70% reductions in grid electricity — with savings starting from day one of commissioning. The system pays for itself, then keeps generating free power for 25+ years.
Sustainability
Real ESG Leadership
Solar PV is one of the most measurable, defensible ESG commitments a business can make — reducing emissions in tonnes of CO2 per year. Supports sustainability certifications, tender requirements, and stakeholder reporting. Real action, not greenwashing.
Energy Independence
Hedge Against Power Price Rises
Australian commercial electricity prices have risen substantially over the past decade. Solar locks in your generation cost for 25+ years — protecting your business from grid price volatility and energy market shocks. Predictable energy costs make budgeting easier.
Future-Proof
Ready for the Electrified Future
Add batteries, EV charging, and demand management later without redesigning. Solar is the foundation of a future-proof energy stack — install now and expand as your needs evolve. Comstel Energy supplies the full ecosystem.
System Types
Three Mounting Options — Match Your Site

The right mounting approach depends on your roof condition, available space, and operational needs. Comstel Energy designs systems across roof-mount, ground-mount, and carpark canopy formats — or hybrid combinations that maximise on-site generation.

Most Popular
Roof-Mount Solar
Most cost-effective for businesses with sufficient roof area. Suits warehouses, factories, retail centres, offices, and any premises with structurally sound roofs. Tilt-frame or flush-mount on metal, tile, or membrane roofing.
Warehouses Factories Offices Retail
Large-Scale
Ground-Mount Solar
For sites with available land or rural commercial properties. Optimised tilt and orientation for maximum generation. Ideal for agribusiness, regional manufacturing, mining support, and large MW-scale installs.
Agribusiness Rural sites Manufacturing MW-scale
Dual-Purpose
Carpark Solar Canopy
Generate power and shade vehicles in one structure. Excellent pairing with EV charging stations — charge electric fleets directly from solar. Works for retail centres, hospitals, universities, and corporate campuses.
EV Charging Retail Hospitals Universities
Industries We Serve
Where Commercial Solar Pays Off Fastest
Warehousing & Logistics
Large flat roofs & high daytime power use.
Manufacturing
Heavy electricity loads & long operating hours.
Retail & Centres
High air-con load through trading hours.
Office & Strata
Daytime energy & tenant attraction.
Agribusiness
Pumping, cold storage, & rural sites.
How It Works
From Energy Audit to Generating in Four Steps

Commercial solar isn't just bolting panels to a roof — it requires energy modelling, structural assessment, electrical design, install, and ongoing monitoring. Comstel Energy manages the entire process end-to-end with one dedicated point of contact.

1
Energy Audit
Free analysis of your electricity bills and load profile. We model the optimal system size, expected generation, and projected payback for your specific premises.
2
Engineering Design
Site visit, structural assessment, electrical design, and a fixed-price quote with all rebates calculated. Includes panel layout, inverter selection, and grid connection requirements.
3
Professional Install
CEC-approved installers complete the system with all electrical, structural, and grid-connection work. STC paperwork handled by Comstel. Minimal disruption to operations.
4
Monitor & Support
Real-time generation monitoring, ongoing performance reporting, and proactive maintenance. Comstel Energy is your single point of contact for the life of the system.
What's Included
End-to-End Service from One Trusted Provider
Free Energy Audit
No-obligation analysis of your bills and load profile. We model expected savings and payback before any commitment.
Tier-1 Panels
Bloomberg Tier-1 manufacturer panels with 25-year linear performance warranty. Quality components only — no compromise on durability.
Premium Inverters
String, central, or microinverters depending on system design. Brands selected for reliability, monitoring, and Australian service support.
STC Rebates Handled
All Small-scale Technology Certificate paperwork managed by Comstel. Rebates applied directly to your quote — no separate claims process.
Real-Time Monitoring
Web and mobile dashboards for live generation data, performance trends, and ESG reporting. Spot issues before they cost you.
Compliance & Warranty
All installations comply with AS/NZS 5033 and AS/NZS 4777. CEC-approved installers and full system warranties.
Why Choose Comstel Energy
Australia's Trusted Commercial Solar Partner
30+
Years in Business
Serving Australia since 1992
End-to-End Service
Design, supply, install, monitor
CEC-Approved
Clean Energy Council install
24/6
Support Available
Local Australian team
Frequently Asked Questions
Common Questions About Commercial Solar
How much does a commercial solar system cost?
Costs vary widely based on system size, mounting type, and electrical complexity. Federal STC rebates significantly offset upfront costs, and most commercial systems achieve payback in 3-7 years. Contact Comstel for a free site assessment and a fixed-price quote with rebates applied.
What size system should I install?
System sizing depends on your daytime electricity consumption, available roof or ground space, and budget. The goal is to maximise self-consumption — using power on-site rather than exporting to the grid. Our energy audit models the optimal size for your specific premises.
What government incentives are available?
Commercial systems under 100 kW qualify for Small-scale Technology Certificates (STCs), which Comstel handles directly. Larger systems generate Large-scale Generation Certificates (LGCs). Some state-based schemes and instant asset write-off provisions may also apply — we'll advise during the quote.
How long do solar panels last?
Quality Tier-1 panels carry 25-year linear performance warranties and typically generate for 30+ years. Inverters generally last 10-15 years and may need replacement once during the system's life. Performance degradation is gradual — about 0.5% per year on premium panels.
Will solar work on my roof?
Most commercial roofs — metal, concrete, tile, or membrane — can host solar safely. We assess structural capacity, age, orientation, shading, and access during the site visit. If the roof needs replacement, we'll advise the right sequence to avoid wasted work.
Can I add batteries later?
Absolutely — many businesses install solar first, then add batteries when the economics improve. Comstel Energy designs battery-ready systems from day one so future expansion is seamless. We also supply EV charging and demand management to complete the energy stack.
Will solar work during a power outage?
Standard grid-tied solar shuts off during outages for safety reasons. Battery storage with backup capability can keep critical loads running during blackouts. If outage protection is important to you, mention this during the quote and we'll design an appropriate hybrid system.
How long does installation take?
After quote acceptance, design and procurement typically take 2-4 weeks. Physical installation depends on system size — small commercial systems install in 2-5 days, larger systems in 2-8 weeks. Grid connection approval can add time. Comstel coordinates the entire timeline.
How do I get started?
Click Get a Free Quote or call 1300 070 747. A Comstel Energy specialist will respond same business day, arrange a free energy audit and site assessment, and provide a fixed-price quote with payback projections.

Cut electricity costs. Lead in sustainability.

Free energy audit, fixed-price quote, end-to-end install. Comstel Energy delivers commercial solar that pays for itself — then keeps generating for 25+ years.

Get a Free Quote

Build the full energy stack

Pair solar with batteries, EV charging, hybrid systems, and demand management for maximum savings and sustainability impact — all from Comstel Energy.

Batteries Inverters EV Charging 1300 070 747
Commercial Solar systems supplied and installed by Comstel Energy, a division of Comstel ICT. Pricing determined by site assessment — system size, mounting type, structural works, and electrical capacity all factor into the quote. All installations comply with AS/NZS 5033 and AS/NZS 4777 by CEC-approved installers. Payback periods, warranties, and performance projections are estimates — actual results vary by site.
Comstel ICT · 1300 070 747 · sales@comstel.com.au · comstel.com.au