The technology for onshore wind turbines is generally well-established and reliable but offshore wind faces years of development before it can be done reliably and cost-effectively. Offshore wind is compelling because there are generally stronger winds than onshore, but the conditions are much more harsh and reliability and construction is more challenging. Seen here are designs from the University of Maine for ballasts to place turbines offshore.
March 5, 2012 3:59 AM PST
Photo by: University of Maine
| Caption by: Martin LaMonica
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