The electricity supply industry, all sectors of which were considered to be a natural monopoly until very recently, is being reformed in Japan. Its power generation sector was liberalized in 1995 and the introduction of competition into end-user supply sector has been discussed. A new access to the electricity industry has been tried, industry which now features both wide regulation from the authorities and deep protection through ‘regional monopoly’ and a ‘rate-of-return’ systems.
Even after the regulatory reform of this sector, improved efficiency must not jeopardize public objectives, i.e., universal service, security of supply, energy security and environmental effects. That is, regulatory reform must not be the one to preclude renewable energy and nuclear power generation which are implicated in global warming.
The deregulation of the electricity sector is to ‘maximize the self-management of electric power companies’ and to ‘minimize administrative interventions’. Regional electricity companies should improve efficiency to become ‘common companies’ through market evaluation, and keeping end-users’ benefits.
Taking these points into consideration, Japan should bring the grid access model as the model of competition-the owner of the grid must allow competitors to use it, on non-discriminatory terms and prices.
Keeping three public objectives-security of supply, reduced prices, and social equity -is required to the electricity sector, and the government should show a clear policy about these public objectives, considering the uniqueness of Japan that has few energy resources.
Under these conditions, regional electricity companies are needed to be competitive with independent power producers (IPP) and a system where end-users can choose the producers by themselves must be established.
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