Micro-grids are an important solution: a combination of a generator and hardened distribution system can supply reliable and larger quantities of electricity to a small circuit of users including emergency services, shelters, gas stations and grocery stores.

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It is a hard question to answer in Britain, where the new Labour government is poised to levy a windfall tax on privatised utilities, where the electricity regulator will impose a tighter cap on electricity distribution charges in 2000, and where competition in the supply of electricity to domestic consumers is due to start next year.

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Northern Ireland Electricity was floated on the Stock Exchange and retained responsibility for transmission, distribution and the supply of power.

BBC: A highly charged debate