Celtic Solar

Our Hot Water Automation Services

Turn Your Hot Water System into a Solar-Powered Battery

Electric hot water heating is typically responsible for up to one-third of a standard Sunshine Coast household’s electricity bill. At Celtic Solar, we change how you heat your water by installing intelligent automation systems that divert your surplus, free rooftop solar energy directly into your hot water tank. Instead of exporting your valuable solar power back to the grid for a low return, our local team configures your property to run on self-generated green energy—slashing your running costs and maximizing your system’s overall return on investment.

Whether you have an existing solar system or are upgrading from an expensive off-peak controlled load tariff, we provide the smart engineering needed to keep your water piping hot at a fraction of the price.

We Provide End-to-End Hot Water Automation Solutions Tailored to Your Home:

  • Smart Solar Hot Water Diversion: We install advanced local hardware—such as Australian-made CATCH Power diverters and Catch Control relays—that continuously reads your excess solar output and shifts your water heating load dynamically throughout the day.
  • 24hr Timer & Contactor Upgrades: For standard properties, we install dedicated switchboard timers and heavy-duty contactors, safely rescheduling your system to heat precisely during peak daylight production windows.
  • Battery Protection Zones: If you own a home battery storage system, we configure specific exclusion rules so that heavy hot water heating elements draw straight from the sun, preserving your battery bank to power your home through the night.
  • Heat Pump Electrical Integration: We design and install the dedicated electrical circuits and smart controls needed to successfully integrate high-efficiency heat pump units into your home.

We manage every detail, so you can sit back and enjoy the benefits of solar-automated hot water.

Why Choose Celtic Solar

For the Community

From sales to solar panel installation, everything at Celtic is done inhouse by local people. We’re proud to be one of Noosa’s longest standing solar businesses.

Industry Experience

We’ve been in the industry for around 20 years and have adapted as the industry has evolved. We offer solar panel, inverter, battery & EV charging installation and repairs for homes & businesses, including general electrical services.

Finding the Right System For You

We don’t believe in a ‘one size fits all’ solution. Instead, Celtic offers a complete personalised service that identifies the best ways to save you money on your energy bills.

Quality Products

Our team can source the best-in-class technology to suit your needs and budget. We work closely with local and interstate suppliers to make sure we give our customers the best products at the right price.

Empowering You to Make the Right Decision

We’re passionate about sharing our knowledge. We aim to educate our clients so they feel empowered to make the right decision and together, we can be confident that we’ve found the right solution to meet your needs.

Commitment to integrity of the Industry

We like to show our commitment to the industry by prioritising quality installations, adhering to evolving standards, and investing in ongoing training and  accreditation. We support customers with transparent advice, reliable after-sales service, and long-term system performance. By staying engaged with industry developments and contributing to best practices, we build trust, improve outcomes, and strengthen the reputation of solar as a sustainable energy solution.

Why Should You Go Solar?

Reduce your energy bills today

Converting UV radiation from the sun to electricity enables you to take control of your energy bill. It’s easier than you think to transition to a solar power system, and you could be saving money sooner rather than later.

A more sustainable future

By installing solar panels for your house and switching to a clean energy source without fossil fuels, you can help reduce your carbon footprint and live a more sustainable lifestyle.

Government incentives

Excess solar energy doesn’t go to waste. It gets sent back to the energy grid and most energy companies or State Governments have incentives in place to pay you for the use of that solar.

Increase the value of your home

Research indicates that a smart solar system can increase the value of your home with 57% of homeowners saying they would pay up to $10,000 more for a home equipped with solar.

How Solar Powered Energy Works

Solar Panels

Well placed solar panels capture sunlight and turn it into a direct current (DC).

Solar Inverter

A solar inverter then converts a DC into an alternating current (AC). The AC is what powers your home in real time.

Solar Battery

If you choose to install a solar battery, excess energy is stored rather than always pushing it out to the grid.

Digital Meter

A device that allows you to monitor energy habits and track your energy use.

Power Grid

Any excess energy that solar panels generate is pushed out to the grid. This energy is measured and calculated to credit your account. You can also draw energy from the grid when and as you need it.