I agree that the 50k BTU isn’t a big deal. It’s just icing on the cake.
I also agree with you that this system require fuel input while solar doesn’t. Which is why I say you can never have an apple to apple comparison, due to their fundamental differences. Keep in mind that the CE5 is the very first FC system for home use and I’m sure the tech will only get cheaper from here on out. This is why I said although 3.5 years break even point is enticing, I’m staying on the sideline and wait for the tech to mature before I make the decision.
What do you mean we don’t know if it will ever work out over 30 years compared to solar? If you want to have a more apple to apple comparison, you would have to add up the cost of NG over the life expectancy of 20 years and have a solar system that have a battery pack for time when there’s no direct sun light. I didn’t get an estimate, but you seem to know your solar, how much does a solar system with a battery pack to store the energy cost?
BTW, FC is not the only tech I’m excited about. I’m actually excited about solar as well, just not at its current price. The efficiency I’m seeing from today solar system is ~18-20%. This break through: http://news.cnet.com/Solar-cell-breaks-efficiency-record/2100-11395_3-6141527.html achieve 40.7% efficiency. When we can mass produce panel with that type of efficiency (hopefully w/in 5-10 years), then we’re looking at break even point of around 3-4 years (assuming today electricity price). If they can achieve their goal of $1/watt w/out rebate or incentive (today, it’s ~$8/watt), then it would be a definite no-brainer. This is why I’m holding out for now.