Many homeowners ask the same question: can solar panels heat your hot water? The answer is yes, but there are two very different ways to use solar energy for hot water.
You can use solar PV panels to generate electricity that helps power your home, including an electric hot water system or heat pump. Or you can install a dedicated solar hot water system, also known as solar thermal, which uses solar collectors to heat water directly.
At Bar Plumbing & Solar, we help Sunshine Coast homeowners understand the difference so they can choose the right system for their home.
When people talk about solar panels and hot water, they are often mixing up two separate systems.
Solar PV panels generate electricity. That electricity can help power appliances, lights, air conditioning and your hot water system.
Solar hot water, or solar thermal, uses solar collectors to capture heat from the sun and store that energy in your hot water tank.
Both can reduce reliance on traditional energy, but they work differently and suit different homes.
For dedicated solar hot water options, visit Bar Plumbing’s solar hot water systems page.
Solar PV hot water means using electricity generated by rooftop solar panels to help power an electric hot water system or heat pump. This can work particularly well if your home already has solar PV and has available daytime generation.
The benefit is flexibility. Your solar PV system can support hot water and help power the wider home during daylight hours.
However, solar PV does not directly heat the water. It generates electricity, and that electricity powers the appliance that heats the water. A conventional electric system generally uses more electricity than a heat pump to produce hot water.
A solar hot water system, or solar thermal system, is designed specifically for heating water. Instead of converting sunlight into electricity, it uses solar collectors to capture heat and transfer it to the water system.
The tank stores that energy as heat, effectively acting as a thermal battery until the hot water is needed.
Solar hot water systems usually include a booster, such as an electric element or gas booster, to help keep hot water available when there is not enough sunlight.
The best option depends on your home.
Using solar PV for hot water may suit you if:
Solar hot water may suit you if:
For solar PV products, Bar Plumbing also provides information on solar panels and inverters.
Yes. A heat pump uses electricity to transfer heat from the surrounding air into the water, rather than generating all of the heat directly through an electric element. This means it generally uses much less electricity than a conventional electric hot water system and can work well with solar PV.
Household usage, tariff structure, system timing and available solar generation can all affect the result.
You can compare this with Bar Plumbing’s heat pump hot water systems.
If you already have rooftop solar, you may be wondering whether to use that existing generation for hot water or install a dedicated solar hot water system.
The right answer depends on your current hot water system, how much solar power you generate, when you use hot water and whether your system can be timed to run during solar production hours.
Using excess daytime solar with a heat pump can be an efficient option. Where there is suitable roof space, strong solar exposure and a need for a dedicated hot water solution, solar thermal may also be worth considering.
There is no single best option for every Sunshine Coast home. The right solution depends on roof space, shade, household size, budget, existing system, hot water demand and energy goals.
If your roof has excellent sun exposure and you want a dedicated water heating solution, solar hot water may be ideal. If you already have solar PV, pairing it with a heat pump may be a particularly efficient option. The right choice depends on how your home uses and produces energy.
Solar panels for hot water and solar hot water systems can both be useful, but they are not the same. Before investing, it is worth getting advice that considers your home properly.
Bar Plumbing & Solar can help you compare solar hot water, heat pumps and electric hot water systems so you can make a confident decision.
Your water isn’t going to warm itself!
For help choosing the right setup, contact Bar Plumbing & Solar today.
Can solar panels heat hot water?
Solar PV panels can generate electricity that powers a hot water system. A dedicated solar hot water, or solar thermal, system uses solar collectors to heat water directly.
What is the difference between solar panels and solar hot water?
Solar panels usually refer to solar PV panels that generate electricity. Solar hot water systems use solar collectors to capture heat for water heating.
Can I use solar power for hot water?
Yes. Solar PV can help run an electric hot water system or heat pump, while solar thermal captures solar energy directly as heat.
Is solar hot water better than solar PV for hot water?
It depends on your home, roof, usage and energy goals. Solar thermal can suit dedicated hot water needs, while solar PV paired with a heat pump can offer flexibility and efficiency.
Contact us today for a free quote. During the consultation, our expert team will walk you through the different types of solar hot water systems available, explain how they work, and help you choose the best one for your needs.