There's a good reason why you see plenty of windmills in Holland and practically none in Ontario. Holland sits on a coastline that gets fairly constant winds. And that's the main drawback to wind power. It's not always there when you want it. However, scientists are experimenting with new types of windmills that they hope will operate in spite of Ontario's low average wind speeds.
Microwave ovens are three times more energy efficient than electric ovens.
Yes, wood is biomass. So too are many agricultural crops. For instance, corn can be fermented to produce ethanol which can be burned as a liquid fuel. Wood, of course, is only a renewable energy source as long as cut trees are replaced immediately. On sunny days, use free solar and wind energy to dry your clothes.