Luke’s story: installing solar at home as a solar expert
How one solar expert put his knowledge into practice – and what you can learn from it.
Luke is a Business Development Manager at Good Energy, and speaks with prospective customers about the benefits of solar panels and batteries every day. Having seen first-hand how solar performs across hundreds of homes, he wanted to reduce his reliance on the grid, and practise what he recommends to his customers by installing his own system.
“I believed in the data I was seeing from others installing solar and batteries, and I wanted to reduce my carbon footprint and monthly costs too. It also felt important that clients could see I’d embrace what I was selling myself.”
Key stats
Location: Dorset
Set up: 3.68kWp solar panel array with SolarEdge inverter and Tesla Powerwall 2
Annual generation: 3,800 kWh
Predicted annual savings: £1,000
Predicted payback: ~8 years
The challenge: Optimising solar for a shaded roof
For Luke, the decision to get solar panels wasn’t driven by one single factor. Alongside the environmental benefits, he saw solar as a practical way to reduce reliance on the grid and bring more stability to his energy costs.
“Interest rates are so low, and energy prices are becoming increasingly volatile – I realised it was better for me to invest and reap the rewards as opposed to leaving the money in my savings earning next to nothing.”
As with most homeowners, Luke was limited by roof space – and also needed to consider the shading cast by his large chimney. So, choosing the right tech for his rooftop was crucial.
The solution: Making the most of every panel
As a solar expert with years of industry experience, Luke had the benefit of being able to design his own solar system using the best solar tech for his needs.
With traditional string systems, all panels feed into one central inverter. That means that if one panel underperforms (because of shade, dirt, or debris), it can drag down the performance of the whole system. Instead, SolarEdge optimised systems allow each panel to work individually, meaning the panels affected by the chimney shading wouldn’t impact the efficiency of the full solar array. What’s more, SolarEdge systems offer panel-by-panel level monitoring, enabling Luke to keep close tabs on his data.
“I designed my own system. I just needed to consider the shade from my chimney, which casts shade on my main array, SolarEdge optimisers mitigated that. The monitoring and reporting from SolarEdge is fantastic and allows me to understand what my system as doing when and if there are any issues at all. The system also offers enhanced safety features, strong reliability, warranties, and performance, which provides real peace of mind.”
Adding a battery to his solar array was an easy decision. Luke opted for the 13.5kWh Tesla Powerwall.
“The data showed that during the day I’d be generating more electricity than I could use which would mean sending the excess to the grid – and then buying electricity back again at night. That made adding a battery a no-brainer, as it meant I could simply store that energy to use later, instead of relying on the grid.”
The result: Lower bills and greater independence
Luke’s system was expected to generate between 3,500 and 3,800 kWh each year – and it’s delivering exactly that. In fact, it’s generating at the top end of that range, powering his home with 3,800 kWh of clean energy in the first year. That covers around 75–80% of his home’s electricity needs.
More importantly, it’s changed how he feels about energy overall: “Going solar completely changed things for me – I feel more independent, less stressed about bills, and there’s a real psychological shift that comes with that. It’s now something I’d consider absolutely non-negotiable in any future home”.
What should people understand before installing solar?
- “Find honest, transparent and highly knowledgeable sales-people”. The team you work with should clearly explain both the benefits and the realities of solar, giving you a full picture of your options and how to get the most from your system. From higher export in summer to lower generation in winter, they should talk you through how things like time-of-use tariffs and export rates can help stabilise your overall savings.
- “Find a trusted installer that directly employs its team”. The company you choose should have its own in-house installation team, so you know exactly who’s responsible for delivering your system. This usually leads to a more consistent standard of work, clearer communication throughout, and ongoing support from people who truly understand your setup.
- “Buy higher quality equipment whenever possible”. Higher quality equipment is typically safer, more reliable and built to last, with strong warranties that protect you if anything does go wrong. Luke’s spoken to several unfortunate homeowners who originally thought they’d saved £2,000 by choosing a cheaper quote, only to later feel they had wasted £12,000 on faulty systems.
For him, it was about choosing a long-term partner that genuinely cares about delivering a quality, lasting installation: “I knew that Good Energy offered the real deal – a long-term partnership with trustworthy installers that care about a quality, long-lasting installation.”