Environment, Energy & Sustainability
The UK is moving towards net zero carbon emissions by 2050, and that transformation touches every home, business, and community. Whether you want to cut your energy bills, access government grants for green home improvements, prepare for flooding, or understand your rights as an energy consumer, this guide provides official department names, helplines, and direct website links — all in one place.
Energy Saving Trust — Independent Energy Efficiency Advice
Official Name: Energy Saving Trust (EST) — Independent, Not-for-Profit Organisation
Official Website: 🌐 www.energysavingtrust.org.uk
📞 Home Energy Scotland (Scottish residents): 0808 808 2282
Monday to Friday, 8:00 AM to 8:00 PM. Saturday, 9:00 AM to 5:00 PM. Free, impartial advice funded by the Scottish Government and delivered by the Energy Saving Trust.
📞 Nest (Wales — Welsh Government Warm Homes Programme): 0808 808 2244
Free advice on home energy efficiency for residents in Wales. 🌐 www.nest.gov.wales
✉️ General Enquiries (England): The Energy Saving Trust does not operate a direct public advice line for England — but its website at energysavingtrust.org.uk provides a comprehensive, searchable database of grants, loans, and energy-saving advice tailored to your location, home type, and circumstances.
The Energy Saving Trust is the UK’s leading independent organisation dedicated to promoting energy efficiency, low-carbon living, and sustainable transport. Established in 1992, it provides impartial, expert advice on home energy improvements, government grants and loans, renewable energy, and reducing carbon emissions. Its grant finder tool lists hundreds of funding schemes across all UK regions.
What the Energy Saving Trust Can Help With
- Home energy efficiency: Insulation (loft, cavity wall, solid wall, underfloor), draught-proofing, energy-efficient windows and doors, heating controls.
- Low-carbon heating: Heat pumps (air source, ground source), solar thermal panels, biomass boilers, hybrid systems.
- Renewable electricity: Solar photovoltaic (PV) panels, battery storage, wind turbines.
- Grants and loans: Comprehensive database of available funding — search by postcode to see what you qualify for.
- Sustainable transport: Electric vehicles, charging infrastructure, cycling, walking.
Key Government Energy Grants & Schemes (2026)
Boiler Upgrade Scheme (BUS)
Official Name: Boiler Upgrade Scheme — Department for Energy Security and Net Zero (DESNZ)
Official Website: 🌐 www.gov.uk/apply-boiler-upgrade-scheme
- Grant amount: £7,500 towards an air source or ground source heat pump (including water source). £5,000 towards a biomass boiler (rural properties only, limited eligibility).
- Who can apply: Property owners in England and Wales. The property must have a valid Energy Performance Certificate (EPC) with no outstanding recommendations for loft or cavity wall insulation (unless exempt).
- How it works: Your chosen MCS-certified installer applies for the grant on your behalf and deducts it from your bill. You do not need to pay upfront and claim back. The scheme runs until March 2028.
- Running costs: A well-designed heat pump can be 3–4 times more efficient than a gas boiler. Combined with a time-of-use electricity tariff (such as Octopus Cosy or similar), running costs can match or beat gas — especially with solar PV panels.
Warm Home Discount
📞 Warm Home Discount Enquiries: 0800 030 9322
Write to: Warm Home Discount Scheme, PO Box 970, Preston PR2 0FX. 🌐 www.gov.uk/the-warm-home-discount-scheme
The Warm Home Discount provides a one-off £150 rebate on your electricity bill each winter. Most eligible households receive it automatically if they receive the Guarantee Credit element of Pension Credit. A smaller number of working-age households on certain means-tested benefits with high energy costs may also qualify. The scheme reopens in October 2026 for winter 2026/27. If you believe you were eligible but did not receive the discount, contact the helpline.
Great British Insulation Scheme (GBIS)
Provides free or subsidised insulation to homes with an EPC rating of D or below and in Council Tax bands A–D in England and Wales. Measures include cavity wall insulation, loft insulation, and underfloor insulation. Delivered through obligated energy suppliers. Apply through your energy supplier or check eligibility at 🌐 GOV.UK GBIS.
Smart Export Guarantee (SEG)
If you generate your own renewable electricity (typically through solar panels), you can be paid for the surplus electricity you export to the grid. Energy suppliers with over 150,000 customers must offer a SEG tariff. Rates vary between suppliers (typically 1p–15p per kWh). You need an MCS-certified installation and a smart meter. 🌐 Ofgem SEG Information
Environment Agency — Flood Warnings, Permits & Environmental Protection
Official Name: Environment Agency (EA) — Department for Environment, Food & Rural Affairs (Defra)
Official Website: 🌐 www.gov.uk/environment-agency
Floodline — Flood Warnings & Advice
📞 Floodline: 0345 988 1188
Open 24 hours a day, 7 days a week, 365 days a year. Textphone: 0345 602 6340.
🌐 Check Flood Risk: check-for-flooding.service.gov.uk
🌐 Sign Up for Flood Warnings: www.gov.uk/sign-up-for-flood-warnings — free service that sends warnings by phone, text, or email when flooding is expected. Covers flooding from rivers, the sea, and groundwater.
Floodline provides live flood warnings, information, and advice for England, Scotland, and Wales. When you call, you can access the latest flood alerts and warnings for your area. The service is critical during extreme weather events — you can also sign up for automatic flood warnings to be sent directly to your phone or email. With climate change increasing the frequency of extreme rainfall events, flood preparedness is essential for millions of UK households.
Environment Agency Incident Hotline
📞 0800 80 70 60 — 24/7 incident hotline. Report pollution, fish kills, illegal waste dumping, collapsed riverbanks, blockages in watercourses, flooding from main rivers, or any environmental emergency. Your report is treated confidentially.
Environment Agency General Enquiries
📞 03708 506 506 — Monday to Friday, 8:00 AM to 6:00 PM. For general enquiries about environmental permits, waste regulation, water quality, and other non-emergency matters. 🌐 Environment Agency on GOV.UK
Ofgem — The Energy Regulator
Official Name: Office of Gas and Electricity Markets (Ofgem)
Official Website: 🌐 www.ofgem.gov.uk
📞 Ofgem Consumer Helpline: 020 7901 7295
Monday to Friday, 9:00 AM to 5:00 PM.
Ofgem is Britain’s independent energy regulator. It protects energy consumers by setting the energy price cap (which limits what suppliers can charge per unit on default tariffs), regulating energy networks, promoting competition, and enforcing consumer protection rules. Ofgem does not handle individual complaints directly (the Energy Ombudsman does — see below) but can take enforcement action against energy companies that breach their licence conditions.
Energy Price Cap (July–September 2026 — Typical Values)
The Ofgem price cap limits the maximum amount energy suppliers can charge per unit of gas and electricity for customers on a standard variable (default) tariff. The cap is reviewed every 3 months. It is expressed as an annual figure for a “typical” dual-fuel household paying by direct debit, based on average consumption. This does not mean your bill is capped — if you use more energy, you pay more. Always check the actual unit rate and standing charge on your bill.
Energy Ombudsman — Resolve Energy Disputes
📞 Energy Ombudsman: 0330 440 1624
Monday to Friday, 9:00 AM to 5:00 PM. 🌐 www.energyombudsman.org
Complaints process: Complain to your energy supplier first and allow them 8 weeks to resolve. If you are not satisfied with their final response, the Energy Ombudsman can investigate and make a legally binding decision. Free for consumers.
Reducing Your Energy Bills — Practical Steps
| Action | Typical Saving (£/Year) | How to Access |
|---|---|---|
| Loft insulation (270mm) | £340–£400 | Great British Insulation Scheme (free for eligible homes) or install from £400–£600. DIY possible for simple lofts. |
| Cavity wall insulation | £300–£525 | Free for eligible homes via GBIS. Paid installation typically £580–£1,400 depending on property size. |
| Smart thermostat | £75–£155 | Available from major energy suppliers and retailers (£100–£250 installed). Heating only rooms you use saves 10–15%. |
| Draught-proofing | £80–£150 | DIY for windows, doors, letterboxes, chimneys (around £100 for materials). Professional service available. |
| Solar PV panels (4kW system) | £600–£900 | Installation £4,500–£6,500. 0% VAT on solar until March 2027. Smart Export Guarantee pays for exports. Payback 6–10 years. |
| Heat pump (replacing gas boiler) | £100–£350 | Boiler Upgrade Scheme grants £7,500. Total installed cost typically £7,500–£14,000 before grant. MCS-certified installer required. |
Water Conservation & Water Companies
Water Efficiency Tips
- Switch to a water meter: If you have more bedrooms than people in your household, a water meter could save £100–£300 per year. Most water companies offer a free trial period — if you do not save money, you can switch back within 12–24 months. Contact your water company directly to request one.
- Fix leaking taps: A dripping tap wastes 5,500 litres of water per year.
- Shorter showers: Reducing shower time by just 1 minute can save £35–£65 per year on combined water and energy bills for a typical household.
- Water butts: Collect rainwater for gardening. Many water companies offer subsidised water butts (typically £15–£25).
Consumer Council for Water (CCW)
The Consumer Council for Water is the independent voice for water consumers in England and Wales. Contact them if you have an unresolved complaint with your water company or sewerage provider. 📞 0300 034 2222 (Mon–Fri, 8:30am–5pm). 🌐 www.ccwater.org.uk
Summary: Key Environment & Energy Contacts
| Service | Contact | Availability |
|---|---|---|
| Floodline | 📞 0345 988 1188 | 24/7, 365 days a year |
| EA Incident Hotline | 📞 0800 80 70 60 | 24/7 (pollution, flooding, emergencies) |
| EA General Enquiries | 📞 03708 506 506 | Mon–Fri, 8am–6pm |
| Energy Saving Trust | 🌐 energysavingtrust.org.uk | Online 24/7 |
| Home Energy Scotland | 📞 0808 808 2282 | Mon–Fri 8am–8pm, Sat 9am–5pm |
| Nest (Wales) | 📞 0808 808 2244 | Mon–Fri 9am–5pm |
| Warm Home Discount Enquiries | 📞 0800 030 9322 | Office hours |
| Energy Ombudsman | 📞 0330 440 1624 | Mon–Fri, 9am–5pm |
| Ofgem Consumer Helpline | 📞 020 7901 7295 | Mon–Fri, 9am–5pm |
| Consumer Council for Water | 📞 0300 034 2222 | Mon–Fri, 8:30am–5pm |
Essential Environment & Energy Tips
- Sign up for free flood warnings now — before you need them — visit 🌐 GOV.UK Flood Warnings and register your address. The service is free by phone, text, or email. Knowing about a flood hours in advance can save your belongings and your life.
- Use the Energy Saving Trust grant finder — enter your postcode at energysavingtrust.org.uk to see every grant, loan, and scheme available for your specific location, home type, and circumstances. New schemes launch regularly.
- Get a smart meter — smart meters are free from your energy supplier and show you exactly how much energy you are using in real time. They also mean accurate bills (no estimates) and access to time-of-use tariffs that can make heat pumps and EVs much cheaper to run.
- Insulate before you generate — the cheapest kilowatt-hour is the one you do not use. Loft and cavity wall insulation are the most cost-effective home improvements, often paying for themselves within 2–3 years. Do these before investing in solar panels or a heat pump.
- Check your EPC rating — your Energy Performance Certificate tells you how energy-efficient your home is and what improvements would make the biggest difference. Get yours at 🌐 GOV.UK EPC Register.
- Complain to your energy supplier first — if you have a billing error, poor service, or any dispute, complain directly to your supplier in writing and give them 8 weeks to respond. If you are not satisfied, escalate to the Energy Ombudsman — free and binding on the supplier.
- Know where your stopcock is — in the event of a burst pipe or flood, turning off your water supply quickly can prevent thousands of pounds of damage. Locate it now, label it, and make sure you can turn it easily.
This guide is part of the GOTOSHARP Information Hub — 32 essential articles covering UK public services, legal rights, financial literacy, and everyday life support for UK residents. Last updated: June 2026. Energy grants, price caps, and environmental regulations change frequently — always verify current details on Energy Saving Trust, Environment Agency, and Ofgem. In an immediate flood emergency where there is danger to life, call 999.