Based on average results of trials in Great Britain and Europe, electricity savings from in home displays (IHDs) are over 9 per cent per year for at least three years, representing a typical saving of at least £147 to a household in Great Britain. Savings on electricity alone will pay for the cost of the IHD in less than four months.

Gas is difficult to measure without a smart meter and is barely represented in the trials, but if the savings for electricity are extrapolated to gas, it represents a saving of £186 over three years.

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