Some of us put up $$ up front to "guarantee" our power costs, drive our car, ect.
If I could put forward $1000/month, or one lump some of $150K to guarantee my automotive costs, I wouldn't. It wouldn't make sense, that's more than my current costs even while I'm making a car payment, and much more than my costs will be once my car is paid off.
For most people the same applies for putting up solar cells and/or a windmill to reduce or eliminate their electrical bill.
It's only going to continue to get cheaper in the future!
Your sunk costs don't go away if future systems become less expensive.
If systems like yours will be less expensive in the future that's a good reason to put off paying for them now. In the unlikely event that they become much cheaper, than they may actually makes sense. I'm not saying they can't, or even definitely that they won't, only that they don't.
The simple fact of life on planet Earth is that most "alternative energy" investments, whether on the small scale like yours, or on the large scale like new wind farms or large solar plants, don't make economic sense, at least not if you consider their total (unsubsidized) cost. |
