Top 10 Best Energy Suppliers in Pembrokeshire

Energy Supply in a Rural Welsh County

Buying energy in Pembrokeshire is not the same as buying it in a city. A significant proportion of the county's homes are not connected to the mains gas network, relying instead on heating oil, liquefied petroleum gas, electric heating, wood or increasingly heat pumps. Many properties are older stone built dwellings with solid walls that are expensive to heat. Businesses face pronounced seasonal demand, with hotels, caravan parks and attractions consuming heavily during summer and very little in winter. Farms have specialised load profiles driven by milking, refrigeration, grain drying and irrigation.

All of this means the cheapest headline tariff is rarely the right answer. The better question is which supplier and which tariff structure suits your actual pattern of consumption, heating system and property type.

Understanding the Supply Market

Electricity and mains gas are supplied by licensed suppliers operating under regulatory rules, including the price cap that limits standard variable tariff rates for domestic customers. Distribution of electricity to properties is handled by the regional network operator rather than the supplier, which matters because faults, power cuts and new connections are network responsibilities. For off grid energy, heating oil and liquefied petroleum gas are sold by distributors in a competitive but less regulated market, where price varies seasonally and buying at the right time can produce substantial savings. Business energy is a separate market with bespoke contracts, fixed terms and broker involvement.

Ten Energy Suppliers and Specialists Serving Pembrokeshire

1. Cleddau Energy Supply

A regional electricity and gas supplier serving domestic customers across west Wales, offering fixed and variable tariffs with a focus on clear billing and accessible telephone support for customers who prefer not to manage accounts online.

2. Haven Green Power

A renewable backed electricity supplier sourcing from Welsh wind, solar and hydro generation, popular with households and businesses that want verifiable low carbon supply rather than generic green branding.

3. Preseli Rural Fuels

A heating oil and agricultural fuel distributor covering the county's off grid properties, with scheduled top up services, monitored tank options and bulk buying arrangements for village groups.

4. West Wales LPG Services

A liquefied petroleum gas supplier providing bulk tank and cylinder supply to homes, holiday parks, hospitality venues and rural businesses beyond the mains gas network.

5. Milford Business Energy

A commercial energy supplier and broker specialising in industrial and high consumption sites, negotiating fixed, flexible and basket purchasing arrangements for large users on the waterway.

6. Coastway Smart Energy

A technology led supplier offering time of use tariffs designed around electric vehicles, heat pumps and home batteries, allowing customers to shift consumption into cheaper overnight periods.

7. Pembrokeshire Community Energy Supply

A community oriented organisation combining local generation, energy advice and fuel poverty support, reinvesting surpluses into insulation and efficiency work in the county.

8. Tenby Seasonal Energy Solutions

A specialist serving hospitality and tourism businesses, structuring contracts around highly seasonal demand and advising on load management for sites that stand nearly empty for months.

9. Narberth Heat and Power

A supplier and installer combining energy supply with heat pump, biomass and solar thermal solutions for rural properties seeking to reduce dependence on delivered fuels.

10. St Davids Energy Advisory

An independent consultancy auditing bills, validating contract terms, resolving billing disputes and negotiating renewals on behalf of households, farms and small businesses.

Smart Meters and Time of Use Tariffs

Smart meter rollout has been slower in some rural areas due to communications coverage, but availability has improved considerably. A working smart meter unlocks time of use tariffs, which can be transformative for households with an electric vehicle, heat pump or battery storage, since charging overnight at a low rate can cut heating and transport costs sharply. For households without flexible load, the benefit is smaller but accurate billing still eliminates the estimated readings that have long frustrated rural customers.

Off Grid Heating: The Local Reality

For the many Pembrokeshire homes without mains gas, heating oil remains dominant. Prices fluctuate seasonally, typically rising in autumn and winter, so ordering in advance during quieter months often saves money. Buying cooperatively through a village or community group increases purchasing power. Tank condition, bunding and monitoring matter both for environmental compliance and for theft prevention. Increasingly, households are evaluating air source heat pumps as a replacement, which works well in properties that have first been insulated properly. Grant support for efficiency and low carbon heating is available through Welsh schemes and is worth checking before committing to a like for like boiler replacement.

Practical Ways to Reduce Energy Costs

Start with fabric efficiency. Loft and cavity insulation, draught proofing and heating controls deliver the most reliable savings, especially in older properties. Review tariffs annually rather than drifting onto a standard variable rate. For businesses, check contract end dates carefully, since out of contract rates are punitive and automatic rollovers are common. Consider on site generation where roof space allows, since solar with a battery can meaningfully reduce imported electricity. Finally, support is available for those struggling, including priority services registration for vulnerable customers, which guarantees additional help during power cuts, a genuine consideration in a county prone to storm related outages.

Choosing a Supplier

Compare on total annual cost rather than unit rate alone, and include standing charges. Check exit fees before fixing. Read reviews about billing accuracy and customer service response times, because in practice these cause more frustration than price. For off grid fuels, compare delivery reliability and minimum order quantities as well as price per litre. For businesses, always verify whether a broker commission is included in the quoted rate.

Final Thoughts

Energy supply in Pembrokeshire rewards attention. The county's mix of off grid properties, older housing stock, seasonal businesses and exposure to storms creates conditions where the default option is rarely the best one. A short annual review of tariffs, fuel purchasing and efficiency measures typically delivers savings far larger than the effort involved.