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Current Cheapest Energy Deals in Machynys

Electricity Tariffs

SupplierTariffTypeUnit RateStandingEst. AnnualExit Fee
Good EnergyGood Energy 12m Fix May26Fixed22.85p57.58p£827£75
Co-op EnergyCo-op 12M FixedVariable23.80p51.41p£830None
EDF EnergySimply Fixed 2Yr Apr28v4Fixed23.25p57.86p£839£75

Gas Tariffs

SupplierTariffTypeUnit RateStandingEst. AnnualExit Fee
Co-op EnergyCo-op 12M FixedVariable5.37p34.01p£741None
Good EnergyGood Energy Fix Feb27Fixed5.37p33.87p£741£50
EDF EnergyPAYG Simply Fixed 2Yr Mar28v5Fixed5.85p29.35p£780£75

Prices shown are for direct debit customers. Annual costs based on typical domestic usage (2,700 kWh electricity, 11,500 kWh gas). Use the comparison tool above for a personalised quote.

EV TariffsFor electric vehicle owners

SupplierTariffOff-PeakPeakStandingExit Fee
EDF EnergyEVolve Tracker Apr2718.18p28.18p52.75p£25
Good EnergyGood Energy EV Charge Fix 12m Aug268.00p30.63p58.04p£75

Off-peak rates typically apply overnight (e.g., 11:30pm-5:30am). Ideal for charging EVs while you sleep.

Heat Pump TariffsFor homes with heat pumps

SupplierTariffOff-PeakPeakStandingExit Fee
Octopus EnergyCosy Octopus 12M Fixed10.70p39.96p49.80pNone
EDF EnergyHeat Pump Tracker 36m16.55p26.55p55.41pNone
Good EnergyGood Energy Heat Pump13.00p29.19p60.03p£75

Off-peak periods designed around typical heat pump usage patterns (early morning, afternoon, late evening).

Agile TariffsPrices change every 30 mins

SupplierTariffCurrent RateStandingExit Fee
EDF EnergyEmpower Fixed 12m19.52p60.77pNone
Octopus EnergyGreenAgile Octopus22.17p62.06pNone

Prices vary every 30 minutes based on wholesale market. Can be very cheap overnight, but expensive at peak times. Best for flexible usage.

Prices updated: 21 Sept 2026 at 06:02

South Wales Grid Right Now

Carbon Intensity
341 gCO2/kWh
very high
Renewables
13%
gas: 86.5%
solar: 12.5%
wind: 0.9%

Energy Efficiency in SA15

D
Average EPC Rating
National average
87%
On Mains Gas
A
60
B
228
C
2060
D
2097
E
427
F
82
G
46

Based on 5,000 energy certificates

Energy Usage in Carmarthenshire

3,493
kWh/year
Electricity
Close to national average (3,554 kWh)
10,405
kWh/year
Gas
8% below average (11,320 kWh)

Based on 86,819 electricity meters and 53,696 gas meters in Carmarthenshire. Source: DESNZ 2024.

Smart Meters in Carmarthenshire

68%
Have Smart Meters
National average
68% of meters are smart

Data from DESNZ Q1 2025. Smart meters help you track your energy usage in real time.

Off Mains Gas in Carmarthenshire

39%
Properties Off Gas Grid
Above national average (16%)
35,409
Homes Without Gas
of 89,940 properties

With 39% of properties not on mains gas, many homes in this area use alternative heating such as oil, LPG, or electricity. The Boiler Upgrade Scheme offers up to £7,500 towards heat pump installation.

Renewable Energy in Carmarthenshire

8,864
Solar Installations
Above average (108.4 per 1,000 homes)
113
Wind Sites
Above average (110.0 MW)
10
Hydro Sites
Below average (0.1 MW)
3
Biogas Sites
Below average (1.0 MW)
275.0
MW
Total Capacity
Enough to power ~82,503 homes
Installed Capacity
Solar PV
163.9 MW
Wind
110.0 MW
Hydro
0.1 MW
Biogas
1.0 MW

Carmarthenshire ranks#28 of 314 for solar,#13 of 227 for wind,#57 of 87 for hydro,#108 of 152 for biogas. Data from DESNZ 2024.

Alternative Heating in Carmarthenshire

With 39% of homes not on mains gas, many properties use alternative heating fuels.

~24,604
Homes on Heating Oil
Estimated from 31.7 ktoe consumption

Homes using heating oil, LPG, or solid fuels may be eligible for the Boiler Upgrade Scheme (£7,500 towards heat pumps) or Home Upgrade Grant. Data from DESNZ 2023.

Energy Grants & Support

ECO4 Scheme
Free heating and insulation upgrades for eligible low-income households
Homes rated D-G may qualify
Check eligibility
Great British Insulation Scheme
Free or subsidised insulation for middle-income households
Available to most homeowners
Check eligibility

Frequently Asked Questions

What grants are available for homeowners in Machynys?

Depending on your circumstances, you may qualify for:

  • ECO4 Scheme - Free boiler replacement and insulation for low-income households with homes rated D-G
  • Boiler Upgrade Scheme - £7,500 towards heat pump installation (any homeowner)
  • Great British Insulation Scheme - Subsidised insulation for middle-income homes
  • Warm Home Discount - £150 off energy bills for eligible low-income households

Machynys is a Village in Dyfed, Wales.

Electricity in Machynys

When the electricity industry was privatised in 1997 the UK was divided into 14 Public Electricity Suppliers (PES for short). While you can now choose from many different electricity suppliers the PES areas that you are located in will have a significant effect on the cost of your electricity. Standing charges and unit rates differ between PES areas.

Machynys is in the South Wales Electricity network PES area which covers the South Wales area of the UK.

South Wales Electricity is owned by National Grid Electricity Distribution who are the company responsible for maintaining the physical electricity network in Machynys and the surrounding area.

Gas in Machynys

Machynys is connected to the gas distribution network so mains gas is available in this area.

Green Energy in Machynys

Consumers are increasingly looking for green energy, also known as renewable energy, as a more environmentally friendly option for powering their homes. Several suppliers that specialise in wind energy, solar energy and hydroelectric energy are available in all parts of the UK and that includes Machynys. Just use our handy checker at the top of this page and choose “Green Plans” to see renewable energy suppliers in this area.

What to do in an emergency

If you have an electrical emergency in Machynys call National Grid Electricity Distribution on 0800 096 3080

If you have a gas emergency in Machynys call National Gas Emergencies on 0800 111 999. If you are at home, and it is safe to do so, turn off your gas supply. Open doors and windows. Do not smoke or use matches or lighters. Do not turn electrical switches off or on.