All five district councils across Sussex have committed to net-zero carbon emissions ahead of the UK national target. Most are working towards 2030 for council operations and 2040–2050 for their wider area emissions.
Household solar is one of the biggest single levers councils have for area-wide emissions reduction. This post walks through each council’s stated targets, where Sussex is on the journey, and what role residential solar is expected to play.
The national context
The UK has a legally binding target of net zero by 2050, with an interim sixth carbon budget that requires a 78% reduction in emissions by 2035 (vs 1990). Power sector decarbonisation is largely on track; buildings and transport are where most of the remaining work sits.
Residential buildings contribute roughly 17% of UK greenhouse gas emissions, mostly from gas heating and electricity demand. Household solar plus heat pumps plus efficient insulation are the three big residential interventions.
West Sussex County Council
Targets: Net zero for council operations by 2030. Working with district councils on area-wide targets.
Solar role: West Sussex CC supports the district-level Solar Together schemes and provides signposting via its Climate Change strategy. The county has set aside funding for community energy projects through the West Sussex Climate Change strategy.
Reality check: West Sussex has solid uptake — particularly along the coast and around Gatwick — but the inland market towns (Horsham, Crawley, Burgess Hill) lag the coastal towns on per-household solar installations.
Chichester District Council
Targets: Net zero by 2030 for council operations. Climate Emergency declared 2019. Climate Emergency Action Plan published 2020 and updated.
Solar role: Chichester runs a Solar Together group-buying scheme (see our Sussex Solar Grants guide) that’s brought hundreds of household installs into the district. The council also operates rooftop solar on its own estate.
Reality check: Strong on policy. The Solar Together scheme has been a meaningful accelerator. The Chichester Harbour AONB and South Downs National Park overlap make some properties harder to install but most homes in Chichester town and the surrounding villages can install under permitted development.
Horsham District Council
Targets: Net zero by 2030 for council operations, 2050 for the district. Climate Emergency declared 2019. Climate Action Strategy in place.
Solar role: Horsham runs a Solar Together scheme alongside Chichester. The council’s planning policy supports renewable energy retrofits in non-heritage properties.
Reality check: Horsham‘s housing stock — particularly the newer developments at Highwood, Kilnwood Vale and Broadbridge Heath — is well suited to solar. Solar Together has helped uptake.
Crawley Borough Council
Targets: Net zero by 2050 for the borough. The council itself is targeting carbon-neutral by 2050 with an interim 2030 reduction goal.
Solar role: Crawley runs an active Home Energy programme, signposting residents to fully-funded energy efficiency improvements where eligible. The council’s own estate includes rooftop solar at K2 Crawley and Tilgate Park — high-visibility installations that signal community commitment.
Reality check: Crawley has high EV uptake from Gatwick commuters and a younger, more renewables-receptive demographic. The 13 neighbourhood structure means there’s a wide range of housing stock — newer estates like Forge Wood and Kilnwood Vale are easiest, older streets in Worth and Ifield need more planning attention.
Adur & Worthing Councils
Targets: Both councils have declared a Climate Emergency. Adur targets carbon-neutral by 2030 for council operations; Worthing targets carbon-neutral by 2030 for the council and 2045 for the borough.
Solar role: Adur & Worthing run a joint Home Energy Efficiency programme, signposting residents to grants and schemes. The council has put solar on its own buildings including the Shoreham Centre.
Reality check: The Adur & Worthing area covers some of the strongest solar locations in the UK — Worthing, Shoreham-by-Sea, Lancing and the villages along the Adur. Above-average solar yields and a relatively engaged retrofit market mean policy is broadly working.
East Sussex County Council and the East Sussex districts
Targets: ESCC has committed to net zero by 2050 for the county area and 2030 for council operations. Lewes, Wealden, Eastbourne, Hastings and Rother all have Climate Emergency declarations and varying interim targets.
Solar role: ESCC runs the Local Energy Efficiency Network (LEEN), signposting residents to ECO4 and other schemes. Solar uptake has been strongest in Lewes (strong environmental culture, historic Transition Town movement), and around Brighton, Hove and Eastbourne.
How much carbon does household solar actually save?
A typical 4kW Sussex solar install prevents around 1.7 to 2.2 tonnes of CO2-equivalent emissions per year, depending on how much grid electricity it displaces and the current carbon intensity of UK grid electricity. Over the 25-year warranty life, that’s around 45–55 tonnes of CO2 per household.
Scale that up: if 10,000 Sussex households installed solar at that rate, the annual saving would be roughly 17,000–22,000 tonnes of CO2-equivalent — comparable to taking 5,000 cars off the road.
By 2030, with the UK grid expected to be largely decarbonised, the carbon savings per kWh of solar will drop (because the displaced grid power is already low-carbon). But the financial case will likely strengthen as fossil-fuel-derived heating gets phased out.
Where Sussex is today vs the trajectory
Estimated solar uptake across Sussex is around 8–12% of households as of 2026 — broadly in line with the UK average but lower than parts of the south west. To hit area-wide net zero targets, that needs to roughly triple by 2035.
The good news: the economics have improved enough (0% VAT, falling panel prices, rising grid prices, more competitive SEG rates) that the trajectory is shifting in the right direction. The Solar Together schemes have added real momentum in Chichester and Horsham.
The harder news: heat pump and insulation uptake lags solar by a considerable margin, and the heating sector is where the bulk of residential emissions sit. Solar alone doesn’t get us to net zero — it’s one of three big residential interventions.
What you can do
If you’ve already got solar, consider battery storage to displace more grid electricity. If you’ve got solar + battery, consider an EV charger and electrifying your transport. If you’ve got all three, the next step is heat pumps via our parent company A Greener Alternative Ltd.
Council Solar Together schemes are the most cost-effective single intervention if you live in Chichester or Horsham. ECO4 covers lower-income households across the county. The Warm Homes Plan rolling out through 2026 will widen access.
Bottom line
Sussex’s councils have set out clear net-zero commitments. The 2026 economics of household solar are the best they’ve been in over a decade. Most homes in the county — coastal or inland, modern or period — can take meaningful action through solar PV, battery storage and electric heating.
The challenge isn’t the policy or the technology. It’s the pace of uptake. We’re trying to do our bit, household by household.
