Solar panels, battery storage, and renewable energy guides
Reroofing with panels on top means paying to take them off and put them back — typically £100–£250 per panel. Here is the full cost breakdown, the warranty trap to…
26 August 2026
Intelligent Octopus Flux pays the same rate for export as you pay for import and hands battery scheduling to Octopus's algorithm. How it differs from standard Flux, and who actually…
21 August 2026
A '25-year solar warranty' is really four separate warranties with different lengths and escape hatches. What product, performance, inverter and workmanship cover each promise, and what a claim looks like.
19 August 2026
The 3.68 kW figure that shapes so many UK solar quotes is a grid rule, not a technology limit. Here is how G98 and G99 actually work, what an export…
19 August 2026
The 3.68kW per phase threshold decides whether solar connects straight away under G98 or waits weeks for G99 approval. How both routes work and when capping the inverter makes sense.
18 August 2026
Slate is brittle and individually nailed. It doesn't forgive a drill. How installers actually fix solar panels to slate, what it adds to the bill, and when an in-roof system…
17 August 2026
A typical 4kW solar system costs £6,000 to £8,000 installed in Northern Ireland in 2026. NI has no Smart Export Guarantee, so here's what export pays instead, plus the VAT…
13 August 2026
Most 'underperforming' solar systems are just having a UK winter. How to tell normal seasonal dips from shading, soiling, inverter faults and genuine failures.
13 August 2026
Your panels will outlive their inverter — usually by a decade or more. What a replacement really costs in 2026, which warranties save you the bill, and why a failed…
11 August 2026
Enphase's IQ Battery 5P stores 5kWh per unit and carries a 15-year warranty, the longest in the mainstream market. We look at the specs, the AC-coupled trade-offs and the UK…
11 August 2026