Wired has an article on the first electric wind turbine, which actually helped power Vermont in the 40s:
The turbine ran through hundreds of hours of testing up to 1943, often pumping power onto the Central Vermont Public Service Corporation’s electrical grid. The project’s engineers were sure that, technically, the machine worked.
The Smith-Putnam wind turbine stood as a testament to the power of human — and American — ingenuity. A decade before, Soviet engineers had built the world’s largest wind turbine, a 100-kilowatt machine. Now the Yanks had constructed their own, 10 times more powerful.
Time concluded its article on the project with a hopeful half-prediction, “New England ranges may someday rival Holland as a land of windmills.” This was, after all, merely the prototype for whole lines of turbines that would be more resistant to German bombs than a centralized coal plant.
Unluckily, a bearing broke in 1943, and the war prevented its replacement until 1945. With the war waning, the wind machine got back up and running in the spring of that year. And that’s when disaster struck.
Wired: Electric Turbines Get First Wind