Understanding Your LPG Bill: A Breakdown of Every Charge

What your bill includes and how to spot errors or unusual charges

Your LPG bill contains two main charges: the unit rate (what you pay for the gas you use) and the standing charge (a fixed daily cost). Understanding each charge helps you identify where your money is going and spot any discrepancies.

The Unit Rate

This is the price per litre (or per kilowatt hour after conversion) that you pay for the gas you actually consume. Your consumption is measured by your individual meter in cubic metres (m³) or other volume units. Suppliers typically convert this to kilowatt hours (kWh) using a standard formula: your usage multiplied by a conversion factor and calorific value, divided by 3.6. You can use our calculator to work out yours.

Metered estate residents typically enjoy unit rates between 40 and 60 per cent lower than those paying for bottled gas, because the estate benefits from bulk purchasing. However, unit rates vary significantly between suppliers and can change when contracts expire or are renegotiated.

The Standing Charge

This fixed daily charge appears on your bill regardless of how much gas you use. It covers the costs of maintaining your connection to the supply network, meter readings, billing services, and contributions to government support schemes. Standing charges remain the same whether you use no gas on a particular day or significant quantities.

Standing charges make up a larger proportion of your bill if you use less energy. For instance, a household using very little gas may find standing charges represent 30 per cent or more of their annual bill, whilst high-consumption households see them as a smaller percentage.

How To Read Your Meter

Your LPG meter measures consumption in cubic metres (m³). This volume is then converted to energy (kWh) using the standard conversion: 1 cubic metre of LPG equals approximately 3.85 litres, which represents approximately 7.08 kilowatt hours of energy. Most suppliers read your meter automatically or semi-annually. However, providing your own meter readings ensures accuracy and prevents estimated bills. If your supplier does not receive a reading for 90 days, they will calculate an estimated reading, which may not reflect your actual consumption.

Reading your meter yourself is straightforward. Simply note the numbers displayed, reading left to right, not including any red numbers. Compare this to your previous reading to determine consumption during the billing period.

Checking Your Bill for Errors

Review the following when your bill arrives:

• Meter readings: Confirm these match what you observe on your meter, or note if marked as estimated
• Unit rate: Check this matches your contract rate
• Standing charge: Verify this has not changed unexpectedly
• Total consumption: Calculate consumption as current reading minus previous reading
• Consumption calculation: Multiply consumption by unit rate, plus standing charge multiplied by number of days

If you identify an error, contact your supplier immediately with evidence of the discrepancy. Suppliers must investigate billing disputes within a set timeframe.

Why Bills Vary Month to Month

LPG consumption varies dramatically with outdoor temperature. Winter months typically see consumption 80 per cent higher than summer months because your boiler operates frequently to maintain indoor warmth. Summer bills may consist almost entirely of standing charges with minimal consumption for hot water only. This seasonal variation is entirely normal.

Contract Terms and Price Protection

Most metered estate contracts lock in a fixed unit rate for two years. After this period expires, your supplier will quote a new rate. Comparing quotes from multiple suppliers before renewing can identify savings. Remember that all residents on your estate receiving supply from the same tank must be offered identical unit prices and standing charges under regulations effective from 1st January 2021.