Slashdot Mirror


US Pays $2B To Develop Concentrating Solar Power Projects

coondoggie writes "The US Department of Energy today said it was conditionally committing $2 billion to develop two concentrating solar power projects that it says will offer 500 megawatts of power combined, effectively doubling the nation's currently installed capacity of that type of power. Concentrated solar systems typically use parabolic mirrors to collect solar energy."

4 of 219 comments (clear)

  1. Price per Home by im_thatoneguy · · Score: 4, Insightful

    $2B in loan guarantees for 100,000 homes. I wonder if they're guaranteeing the entire cost of the plants or just a part of the financing.

    That would work out to $20k per home.

    Average monthly bill for a home is approximately $100 a month. So $1200 per year. 12 year pay-off ignoring operating expenses and maintenance.

    Sounds like a good investment.

  2. Re:Is this the way we want to go? by hackertourist · · Score: 4, Insightful

    You need both. Solar power is low-density, so you need a lot of area to gather enough power.

    When you install PV on rooftops, it doesn't provide enough power for buildings with more than a couple of floors. I did some calculations recently for my own apartment building: a roof full of PV panels provided just enough power for one floor of the building, assuming the national average domestic power consumption.

    CSP can supplement power generation for high-density areas (cities). It can also easily provide nighttime power by using heat storage. This is more difficult to do with house-sized PV (you need huge battery banks in each house, or a central storage system, e.g. a pumped water storage facility).

  3. Re:A link to the actual press release by PinchDuck · · Score: 4, Insightful

    You're right. What company in their right mind would want to produce something that is going to be in constant and ever increasing demand? They would have a guaranteed customer base, guaranteed scarcity, and guaranteed profits. Yup, no company in their right mind would ever want to be a part of that. Thank God that Uncle Sam is here to fill the gap. We should pour money into projects like this right up until the day we default.

  4. Re:A link to the actual press release by rahvin112 · · Score: 4, Insightful

    Not a Dime. It's a a loan guarantee. It's entire purpose is to allow the borrower to borrow the money to build at government interest rates (currently 3%) rather than the market rates that would likely be MUCH MUCH higher for a power plant with an unproven design (by unproven I mean there aren't 50,000 of them). Something like this helps develop technology like this without high interest rates that make the project uneconomic. Because the reality is you can't build a power plant and make money at 9% interest rates and only proven technology (as in 20% of the nations power is generated by the technology) is given market rates.

    The single greatest barrier to the development of new technology is the interest rate barrier that applies to such projects. Banks assume because it's not "proven" that there is a higher risk of default and charge much higher interest rates. Those higher rates make projects ROI negative or so small as to essentially make the project worthless. If we want to move away from Coal power and to carbon-less sources of power we MUST provide loan guarantees and grants to move the projects from theory to reality. Unlike what politicians these days like to tell you the purpose of government is help move the infrastructure and the country as a whole forward. When you put market forces behind infrastructure you inevitably end up with little to no progress without economic incentive to move forward. Coal is cheap, the technology is proven, if we want to move away from coal (and I do) then Government needs to help find the alternative technology that's just as good because the reality is the banks don't like risk and power is a business where margins are razor thin. Power and Energy are national security issues, we've forgotten that as a nation, particularly if people like you post such sarcastic posts and ignore the reality of the market and it's driving forces.