Maximise your self-consumption with an intelligent energy diverter.
Solar panels generate plenty of power that Christchurch homes never actually get to use, most of it exported to the grid for a fraction of its value. An energy diverter fixes that, redirecting the surplus straight into your hot water instead of sending it away. We fit them for solar households across Christchurch, Highcliffe, Mudeford and Burton.
Whether your solar panels went in on one of the older streets near the Priory or a roof from the town's later expansion further out, a diverter works the same way regardless of the property. It wires in at your consumer unit rather than depending on roof type, pitch or age, so a Victorian terrace and a newer build out towards Burton are equally straightforward.
Installing an energy diverter offers immediate benefits for any residential property with solar PV. By monitoring your energy generation in real-time, these devices ensure that no "spare" electricity goes to waste - instead of buying energy from the grid to heat your water, you use what you've already generated for free.
myenergi eddiAn energy management system that diverts surplus power from your solar PV to your water heater. Full app integration, and works with any existing solar setup.
SolarEdge Hot Water ControllerSpecifically designed for homes with SolarEdge inverters - automatically channels excess energy into your hot water tank.Christchurch gets well above the UK's average sunshine. The Met Office climate station at Hurn, in the Christchurch area, recorded an average of 1,779 hours of sunshine a year between 1991 and 2020, against 1,403 for the UK as a whole. That extra sunshine is what a diverter runs on: power your panels make that the house can't use right then, sent to the immersion heater rather than exported.
It doesn't arrive evenly. May, June and July each averaged more than 220 hours of sunshine at Hurn, with July the brightest at 234, while December managed 61, barely a quarter of July's figure. So a diverter does most of its work from late spring through summer and has far less to work with in midwinter, when the boiler or an immersion timer does most of the heating.
Your own daytime use comes first. A diverter only takes what would otherwise be exported, so a household that's home all day, running the washing machine and dishwasher off the panels, leaves less over for the cylinder than one that's empty until the evening. That's why daytime habits come into the conversation alongside the inverter and immersion heater when we look at your setup. It's the same conversation on our diverter installs across Poole.
Hot water has a temperature floor. The Health and Safety Executive's legionella guidance is that hot water should be stored at 60°C or above to kill the bacteria, and a diverter can only deliver what the panels spare. On a dull December day that may leave the cylinder short of 60°C, so the existing boiler timer or immersion boost stays in charge of the minimum.
Diverting is also a trade against exporting. Under the Smart Export Guarantee, which Ofgem has overseen since it began in January 2020, suppliers set their own export rates, contract lengths and terms, with rates only required to be above zero, and payments are worked out from export meter readings. Every unit sent to the cylinder is a unit not paid for at that rate, so your tariff belongs in the decision.
The cylinder decides how long the sun's heat lasts. According to the Energy Saving Trust, new hot water cylinders come factory insulated to keep water at temperature for longer, and that full insulation stops heat escaping. Heat banked from the panels in the early afternoon needs to survive until the evening's baths and showers, so the state of the cylinder's insulation is worth a look before a diverter goes in.
We check your existing solar setup, inverter brand and immersion heater to confirm the right diverter for your home.
We match your setup to the right diverter, myenergi eddi or the SolarEdge Hot Water Controller, and confirm compatibility with your existing solar and immersion system before installation begins.
Our qualified electricians install and wire in the diverter alongside your existing solar PV and immersion heater - most installations in Christchurch are completed in a single visit.
The system is tested and commissioned, and you receive full handover paperwork plus a walkthrough of the app-based monitoring - ready to start saving on hot water straight away.
5.0 on Google from 23 reviews
Reviews 1–2 of 23
While up on the roof, they noticed several cracked tiles and immediately pointed them out to me, suggesting I get them fixed while the scaffolding was already set up. Rather than rushing to finish their own job, they kindly put their work on hold so I could get the roof repaired. … Finding a trade company with this degree of honesty, integrity, and punctuality is rare.
Adam took the time to understand our needs and provide us with a tailored solar solution that comprised of Roof Panels, Hybrid Inverter, Battery Storage and a solar IBoost. … The whole process was surprisingly smooth and completed in two days.
…it's great to not see the smart meter going up every day and getting money back for generated electricity that we've not used It's a win win delighted customers 😊
Adam of Electrical Exchange Is every good at ther job they put in a (EVEC ELECTRIC VEHICLE CHARGER ) and a ( EDDI ) HAS WELL
…although Adam’s quote wasn’t the cheapest, he took the time to explain the hidden complexities in my setup and his reasoning made complete sense. … The system has been running flawlessly since March, proving he was absolutely right.
We have multiple jobs and works completed by Adam and the team and could not be happier with the work conducted, this has included a rewire of our property and most recently new lights fitted to the entrance of our house set on a PIR brilliant work and to a very high standard.
I had good conversations with Adam beforehand and he suggested the best approach, he handled the required paperwork with the DNO. … he was able to have the wire come right out of the wall into the back of the charger, making it look incredibly neat.
Installed new consumer unit in old house and corrected many faults worked tirelessly for 4 days straight rewiring where necessary, changing sockets earthing system.
Adam from Electrical Exchange came and wired in my Air Conditioning unit. Very friendly and informative from start to finish. … He even chatted me through my existing solar and battery set up where I had a few unrelated questions too.
Adam and Peter have done a wonderful installation on my FastAmps EVCharger From the moment I contacted Adam about the job to completion it was approached in the most professional and efficient manner.
I recently had the latest generation of the Fastamp Alpha 7 home EV charger installed by Adam and his team from Electrical Exchange and I couldn’t be happier with the experience.
Full garden lighting project was completed by Electrical Exchange. Installation of armoured cable, outdoor sockets, down lights, up lights, tree lights and rope lighting around patio. … I would call Adam a perfectionist with his neat and tidy workmanship.
Installed my EV charger and replaced the consumer unit to a very high standard. Professional, tidy, punctual, and took the time to explain everything clearly.
Quoted ordered and fitted Fast Amp charger all within 4 days …commissioned demonstrated all working fine thanks to Adam and Fast Amp 👍
Adam from Electrical Exchange was punctual, professional and completed our electrical work to a high standard. He was friendly and explained everything clearly and he left everything clean and tidy.
Installed a sub-board for an air con unit I was installing…Prompt & polite, works clean & tidy.. highly recommend Adam and his team
…The whole process was clearly explained, they put a mat down when working indoors and left with everything looking great.
I have them as my go to people for various needs around my old outdated Victorian house which has needed that more modern touch.
Adam, was very helpful and really supportive in installing my charger by providing relevant advice and guidance throughout the whole process.
Adam and his team were great. He was on time, tidy and did the job well. There was a problem (not of his making) that he persisted with and managed to solve.
Great company and excellent service from Adam
5 Star service good prices and efficient working practises
Reliable service competitive prices hard working peoplie, Amazing service👍🏽
A starting point - get in touch if your question isn't answered here. See every answer
We cover the whole town as standard, plus Highcliffe, Mudeford and Burton. If you're a solar household anywhere in that area, we can fit a diverter.
There's no travel time to factor in since we're based in the town itself. Get in touch and we'll find a slot that works for you.
Yes. A diverter works alongside an existing solar PV system. If you don't have solar yet, that's the starting point, not the diverter itself.
It monitors your solar generation in real time and redirects any surplus straight to your immersion heater instead of exporting it to the grid, heating your hot water for free rather than buying it back later.
Yes. Both products we fit, myenergi eddi and the SolarEdge Hot Water Controller, offer app-based monitoring so you can track your energy flow and savings in real time.
Speak to the team who'd do the work - no sales reps, no pressure.
01202 117005 Request a FREE Home Survey
myenergi eddi Review (2026): Settings, Boost and Spare SolarWhat its manuals and a year-plus independent test say about heater priority, boost timers, the app, batteries and the zappi.24 October 2026
What does a solar diverter do?It sends surplus solar power to your immersion heater instead of the grid. How it works, and how it compares with a battery.13 August 2026
How to read the Fox ESS app: your solar, battery and grid at a glance (2026)The Fox ESS app (FoxCloud 2.0) explained: the power-flow screen, kW vs kWh, battery %, the charts, work modes, an overnight charge window and alarms.24 October 2026If your solar panels are anywhere in Christchurch or these nearby areas, a diverter fits into that existing system:
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