2012年(464)
分类: Delphi
2012-06-19 15:31:06
Britain created the first electric light bulb and a pioneering national grid.
Then, in 1990, it built one of the rich world’s most liberalised energy markets.
For years it enjoyed low prices and lectured other countries about the virtues
of
deregulation. Not for it French-style state-owned monopoly utility firms. But
the country has gradually lost faith in a free energy market. A bill published
on May 22nd signals a drastic change.
The bill is a response to two
developments. One—particularly worrying to politicians—is rising electricity
prices. The second, further off, is a looming capacity crunch. Roughly one-fifth
of Britain’s existing power stations are due to be retired within the next
decade, and if the country is to meet its EU targets, new capacity must come
from low-carbon sources.
The best way to encourage green energy is to tax
carbon. Australia took that brave step in 2011, admittedly with plenty of
giveaways and exemptions for the early years. Under the European
emissions-trading scheme carbon does have a price in Britain, but it is too low
to be effective and is hard to increase. If Britain commits itself to unilateral
action, the early price would still be low, but the government could promise to
increase it over time. It is the price of carbon in 20 or 30 years, not now,
that determines investment decisions. This move would encourage cleaner
technologies but allow the market to choose which it favours and how much to
pay. It is simple and more likely to endure than complex interventions.
The
government’s solution to all these problems is to replace a deregulated market
with a command-and-control one. It has stated how much it expects each renewable
technology to generate by 2020, as well as how many nuclear plants it wants, and
where. It will create long-term contracts for supplying low-carbon energy,
setting a minimum price for solar power, another for offshore wind and so on (). The
hope is that this will give energy firms the assurances needed to invest in new
forms of generation. The certainty is that David Cameron’s Conservative-led
coalition government is rowing hard against the free market. This is odd, and
wrong.
Rather than interfere with and second-guess the market, the government
should strengthen it. For investors to view the electricity-generating business
with enthusiasm, they must be able to find out what the real price of
electricity is. At present that is impossible, because most electricity in
Britain is “traded” between the generation and supply arms of the same firms.
The government should have threatened to split them up (a gambit that worked
wonders with British Telecom) and forced trading onto open exchanges, as happens
in Germany.