Over the past few weeks, I’ve had some interesting emails from Lonewolf, who has done some serious investigation into switching from his gasoline power generation (generators) to wind turbines. Since he is located in a Class 4 to Class 5 wind zone (seasonal mean wind speeds of 13.4 to 14.4 mph) this would seem to make good sense.
Using only 200 kw per month (less then 1/5th of most households or less), the actual cost of the equipment for this conversion would run a whopping $13,000 - $20,000, with a break-even point far off in the distant future of 30 to 50 years.
Why so much? There are many reasons for this. Alternative energy suppliers are terribly expensive and have been hit hardest by the rising costs of metals, manufacturing and shipping, all of which are entirely petroleum dependent. Few people seem to be aware of just how much metals alone have risen in costs, but important and critical components such as copper having risen over 300%.
The other problem with alternative energy manufacturers is their stated electrical output is grossly exaggerated. Most manufacturers produce output curves under various conditions (but conditions are never static/always changing and rarely if ever optimum), and almost all claims are very ‘optimistic’ and under ideal conditions (ideal factors vary depending on what conversion forms one’s speaking of). To meet your actual demand, you will require an additional 30% of power generation over the published “stats”, and then double that for actual storage and conversion losses. (more…)