As energy costs continue to rise, Australian businesses are turning to renewable energy to cut expenses and boost operational efficiency. A 20kW solar system is a powerful solution for organisations looking to significantly reduce daytime electricity usage. Designed for medium-sized commercial operations, offices, and retail spaces, this system delivers reliable performance and an excellent return on investment.
At 3P Solar, we offer expertly designed and professionally installed 20kW systems built to support your business growth and sustainability goals.
20kW solar panel system is ideal for small to mid-scale businesses with consistent daytime operations and energy usage. If you’re running a busy office, hospitality venue, medical practice, or small manufacturing unit, this system can meet a large portion of your power needs—especially when paired with energy-efficient practices.
This capacity is particularly well-suited for properties with single or three-phase power and is commonly used in:
If you’re evaluating solar solutions for your business, this size strikes a strong balance between cost-effectiveness and power output.
46 x 440W
Tier 1 Solar Panels
1 x 20kW
Power Inverter
69 x 440W
Tier 1 Solar Panels
1 x 30kW
Power Inverter
114 x 440W
Tier 1 Solar Panels
30kW + 20kw
Power Inverter
Depending on your geographic location, system orientation, and weather conditions, a 20kW solar panel system can produce between 75 to 90 kWh per day. This level of output is sufficient to cover high daytime energy usage, reducing grid reliance during peak hours and enabling you to benefit from solar feed-in tariffs when excess energy is exported.
Request a Free QuoteAt 3P Solar, we customise each system based on your site and business requirements. A typical package includes:
All components are sourced from trusted, Tier 1 manufacturers to ensure durability, efficiency, and long-term reliability.
Pairing your solar setup with battery storage unlocks added value, especially for businesses with after-hours operations. A 20kW solar battery system allows you to store daytime-generated power and use it in the evening, during peak demand times, or in case of grid outages.
Key advantages of a 20kW solar system with battery storage include:
Battery storage is particularly useful in regions with low feed-in tariffs or in industries where continuous uptime is critical.
Wondering if a 20kW
system suits your energy use?
Absolutely. This system size is frequently chosen for solar panels for office buildings and other commercial locations that operate during daylight hours. The daily generation capacity of a 20kW setup aligns perfectly with business hours, enabling you to maximise the use of clean, low-cost energy on-site.
Whether you’re fitting out a new location or retrofitting solar panels for commercial premises, our engineers will design a system that fits your goals, space, and energy profile.
Partnering with 3P Solar means working with an experienced team that handles everything from consultation to commissioning. Our process includes:
We review your electricity bills, building layout, and future growth projections.
You receive a tailored solution and clear breakdown of expected savings.
Our team manages grid applications and compliance documentation.
Conducted by licensed commercial solar specialists in line with Australian standards.
Ongoing performance analysis and support to ensure consistent output.
We ensure that every project meets Australian standards and is designed for optimal, long-term performance.
A typical 20kW system includes 45 to 52 panels, depending on the wattage of each panel (usually between 380W–450W). The final count depends on your available roof space and panel choice.
Yes. A 20kW solar panel system is specifically designed for offices and small to medium commercial operations. It efficiently powers daily operations, reduces grid dependency, and offers excellent financial and environmental returns.
Not sure if 20kW is right for your property?
Get advice from our team now.