It is sometimes argued that wind power is too variable to be relied on and that we need the 'base load' security of nuclear power. Relevant links are given here.
Will British weather provide reliable electricity? (James Osswald et al., Energy Policy, 36(10), 4005-4007, 2008). See also Research: Wind power pricier, emits more CO2 than thought (The Register, 2008-07-03). This research was sponsored by the The Renewable Energy Foundation.
Matching variable demands for electricity with variable supplies.
Reports on the feasibility and costs of decarbonising the UK, Europe and the world—and the costs of not taking action.