Solar Panels in Battersea, Greater London

A 3-4kWp system in Battersea typically costs £5,000-£8,000 with 0% VAT included — the zero-rate VAT alone saves around £1,000 compared to the standard 20% rate. The system generates approximately 3,840 kWh/year, paying for itself in 6-8 years through electricity savings and Smart Export Guarantee income of 4-6p/kWh. Adding a home battery (5-10 kWh) costs an additional £3,000-£6,000 and also benefits from 0% VAT. We recommend getting at least three quotes from MCS-certified installers to compare pricing and equipment.

Most roofs are suitable for solar panels. You need at least 18-20 m² of unshaded roof space for a typical 4kWp system (10 panels at ~400W each). South-facing roofs at 30-40° produce the best yield, but east and west-facing roofs still achieve 80-85% of optimal output. Your MCS-certified installer will assess your roof's orientation, pitch angle, shading from trees or buildings, and structural suitability during a site survey. Slate, tile, and metal roofs are all suitable, though flat roofs require angled mounting frames which add slightly to the cost.

Solar PV panels generate electricity from sunlight using photovoltaic cells, while solar thermal panels heat water directly using the sun's warmth. For most UK homes, solar PV is the better investment: it is more versatile (powering all electrical appliances), benefits from 0% VAT, and you can sell excess electricity via the Smart Export Guarantee at 4-6p/kWh. Solar thermal only heats water and does not generate electricity or qualify for SEG income. Solar PV panels also last longer (25-30 years versus 15-20 for solar thermal) and have lower maintenance requirements.

A smart meter is required to sell surplus electricity back to the grid under the Smart Export Guarantee (SEG) and earn 4-6p/kWh for your exports. Your energy supplier will install a smart meter for free if you do not already have one — contact them before or shortly after your solar installation. You do not strictly need a smart meter for the solar panels themselves to work, but without one you cannot receive SEG payments. Your MCS-certified installer submits the G98/G99 application to your Distribution Network Operator after installation to register your system for grid export.

Modern solar panels are warrantied for 25-30 years and typically last even longer with minimal maintenance. Panel efficiency degrades by just 0.3-0.5% per year, so after 25 years, your panels will still produce around 85-90% of their original output. Inverters typically last 10-15 years and may need one replacement over the system's lifetime, costing around £500-£1,000. With a typical payback period of 6-8 years, that leaves 17-22 years of near-free electricity generation. Panels require very little upkeep — UK rainfall keeps them clean in most cases.

In most cases, regular UK rainfall keeps solar panels clean enough to perform well. If your panels are near trees, under bird flight paths, or at a low pitch angle (below 15°), an annual clean may improve output by 2-5%. Never use abrasive materials, pressure washers, or household cleaning products — a soft brush and clean water is sufficient. Professional panel cleaning services typically cost £50-£100 per visit. Your panels have no moving parts and require very little maintenance over their 25-30 year lifespan.

Yes. Solar panels improve your EPC rating by 1-2 grades and can increase property value by up to 4% according to recent UK property market research. Buyers increasingly look for energy-efficient homes with lower running costs, particularly as electricity prices remain high at around 28p/kWh. A solar system in Battersea is a long-term investment in your property that also generates income through the Smart Export Guarantee. With a 25-30 year panel lifespan, future buyers inherit decades of remaining electricity savings.