As wind power moves from being small-scale to large-scale, the latest hot topic is the question of who will pay for the needed transmission. The windiest sites are often remote from population centres -- particularly on huge land masses like North America and Australia -- and remote from transmission lines. Some pretty hefty costs are floating around. What is missing is discussion of the costs of grid reinforcements needed for more generation in a "no wind" scenario -- the extra cost of wind could well be non-existent or negligible. Also missing is discussion of least-cost options -- exploiting the most wind resources for the least overall costs. That may involve moving away from the highest wind speeds sites until all other sites are fully exploited.
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Senior Renewable Energy Analyst (WindGEMINI Product Lead) DNV GL Bristol (City Centre), City of Bristol