Smart meters provide consumers with detailed information on their energy use and can enable energy suppliers to provide a wider range of off-peak tariffs as well as allowing suppliers to collect meter readings remotely. The Department expects them to be an important step towards 'smart grids', which may help to manage demand across the electricity system.
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The NAO's early assessment of the programme concludes that the Department has made progress in developing its approach in the early phase, which cost £11.2 million. However, in this phase, it did not demonstrate full value for money, because its early planning and budgeting were insufficient to support clear monitoring and accountability. The Department is strengthening programme management.
The cost of installing smart meters in every home and smaller non-domestic premise and the associated communications technology will be borne by energy suppliers. The Department expects suppliers to pass the costs and efficiency savings on to their customers. The estimate by the Department of the total cost of the programme – currently £11.3 billion - includes some provision for cost escalation. But uncertainties remain, and the Department still has to develop a specification for the central data and communications system.
The Department estimates the economic benefits at £18.6 billion between 2011 and 2030 (achieving a discounted net benefit of £7.3 billion). However, the report identifies uncertainty, based on the evidence available so far, about the extent to which smart meters will result in changed energy use by consumers over a sustained period. The Department has still to develop its benefits realisation plans and consumer engagement strategy.
(CD/KMcA)
