Sketty’s SA2 postcode is predominantly detached and large semi-detached professional and academic housing: four-bedroom 1930s houses on generous plots at Derwen Fawr, 1960s and 1970s executive estates at Sketty Park, and newer detached properties toward Killay. These properties carry larger roof areas, more complex rooflines, and higher household electricity consumption than valley terrace stock — all of which strengthens the solar case.
Why higher-consumption households suit solar
Larger detached SA2 properties typically consume 5,000 to 8,000 kWh annually. Higher consumption means more generated electricity can be used on-site rather than exported at the lower SEG rate. A Derwen Fawr four-bedroom detached consuming 6,500 kWh annually with a south-facing rear pitch can realistically achieve 50% to 58% self-consumption on a well-sized array.
At 950 kWh/kWp and a 5.5 kWp system generating 5,225 kWh, the 52% self-consumption model produces year-one electricity savings of £762 plus SEG export income of £326 — total £1,088. On £9,200 installed cost, simple payback: 8.5 years.
EPC band improvement
Sketty’s older detached stock typically carries EPC band C or D. A 5 kWp solar installation is the single most reliable measure for moving an SA2 property from band D to C, or C to B. EPC band B is increasingly expected by buyers in the SA2 professional market. Adding battery storage alongside solar reliably crosses the band B threshold in most EPC assessments.
EV charging integration
EV adoption among Sketty’s professional households runs above the South Wales average. Integrating solar with a solar-divert EV charger (Myenergi Zappi or equivalent) directs surplus midday generation into vehicle charging before grid export. A household charging two EVs from solar surplus at four charge events per week, with 55% of charge energy from solar, avoids approximately £650 of grid electricity per year. Combined with standard solar benefit of £1,088, the integrated system saving runs to approximately £1,738 per year.
Sketty Park rooflines
Sketty Park properties from the 1960s and 1970s often have hip-roof profiles and complex multi-valley rooflines requiring careful panel layout planning to maximise usable south-facing area. FLD uses aerial roof surveys for complex Sketty Park rooflines, combining OS maps and 3D data with on-site structural assessment.
Getting a Sketty solar survey
FLD is 15 minutes from Sketty. We offer evening appointments for working households. Call Paul on 01792 680611.
