As energy prices continue to fluctuate and sustainability becomes a greater priority for households and businesses alike, finding smarter ways to use renewable energy is more important than ever.
One of the most efficient—and often overlooked—tools for boosting energy efficiency is the immersion controller.
An immersion controller is a smart device that works with your solar PV system to manage how and when your hot water is heated. Rather than letting unused solar energy go to waste, an immersion controller redirects that surplus energy to your hot water tank.
In other words, instead of exporting excess solar power back to the grid, your system uses it to heat water for showers, baths, and washing up—areas that account for around 18% of a typical household’s energy use. This makes immersion controllers an incredibly effective way to reduce both electricity costs and reliance on external energy sources.
Whether you’re a homeowner or a business owner, the benefits of an immersion controller are clear:
Reduce electricity bills
Lower your dependence on grid-supplied energy by using what your panels already produce.
Quick to install, easy to use
Our immersion controllers integrate seamlessly into your existing solar PV setup.
Tailored solutions
With a range of options available, we’ll help you find a system that suits your property and energy usage.
Immersion controllers aren’t just a smart choice—they’re a simple, effective upgrade that immediately improves your solar system’s efficiency.
We offer two high-performance immersion controller options designed to suit a variety of homes and energy setups. Let’s take a closer look:
The SolarEdge Hot Water Controller automatically diverts surplus PV energy to your water heater, ensuring you get the most from your solar generation. For homes already using the SolarEdge Home ecosystem, this controller is an ideal addition.
Key benefits:
Prioritises hot water heating using excess solar energy
Features a built-in appliance consumption meter
Optional temperature sensor for extra precision
Enhances solar self-consumption and reduces electricity costs
This eco-friendly option is designed for households looking to get smarter about how they manage their home’s energy use, especially when it comes to hot water.
The MyEnergi Eddi is a standout in solar energy diversion technology. This smart device allows you to maximise the use of your self-generated solar or wind power, ensuring that excess power is directed to where it’s needed most—your water heating systems.
Key benefits:
Automatically diverts surplus energy to your immersion heater
Reduces grid dependency by keeping more energy in-house
Makes real-time decisions on power distribution
Seamlessly integrates with your existing microgeneration system
The MyEnergi Eddi transforms your solar setup into a smart, self-sufficient system that saves money and increases sustainability.
If you already have a solar PV system—or are considering one—adding an immersion controller is a low-hassle, high-impact upgrade that helps you make the most of your investment. It’s an ideal solution for anyone looking to improve energy efficiency, reduce reliance on the grid, and cut energy costs.
We install and integrate immersion controllers throughout Surrey and surrounding areas. Whether you’re just getting started or want to upgrade your current system, our team are here to guide you through the best options.
Start gaining control over your energy consumption today.
Contact us to find out how an immersion controller can transform the way your home or business uses energy!
Solar energy is a clean, renewable source of energy that is becoming increasingly popular around the world. It offers numerous benefits, including reduced energy bills, decreased reliance on fossil fuels, and lower carbon footprint. In this article, we will explore the technology behind solar...
Reaching out to Sheerwater Solar is straightforward and hassle-free. Whether you’re interested in solar panels for your home or business in Woking, we’re here to guide you every step of the way. You can contact us directly by calling 01932 627 555 or by sending an email to info@sheerwatersolar.co.uk.
Alternatively, fill in our online form for a swift response.
What happens next?
In most cases, we’ll need to conduct an on-site survey at your property to assess the feasibility and provide you with a tailored quote. This visit allows us to understand your specific needs and explore the potential for renewable energy solutions. Following the survey, we’ll discuss the best options for integrating solar energy into your property, including detailed costs and the installation process.
We’re excited to assist you on your journey to renewable energy and look forward to hearing from you.