We are proponents of wind, solar, and other alternative energy generation and capture methods to supplement conventional sources. America needs to cultivate a diverse portfolio of energy supplies, for national security and the recovery and maintenance of our economy. America is now feeling the sting of decades of funding cuts to basic research and technology development. America's current reality is that there are few alternative energy options that are technologically and economically viable, and we have to take issue with bad math to support unrefined technology to justify decisions,
particularly spending public dollars.
The news release from the US Forest Service is woefully devoid of information (
http://www.fs.fed.us/r9/wayne/press_releases/contract_awarded_solarpanels.html), here it is:
"
Nelsonville, Ohio (March 13, 2009) – The U.S. Forest Service has awarded a $398,000 contract to the Ohio-based D.J. Group from Beverly, Ohio. The contractor, a Service Disabled Veteran Owned Small Business is being hired to purchase and install more than 250 additional solar panels to the roof top of the Wayne National Forest Headquarters building, bringing the total to over 300 solar panels.The funding for the contract is coming from the American Recovery and Reinvestment Act of 2009. It’s estimated four jobs will be created by the Wayne National Forest six-month project that gives business to Ohio’s growing solar industry. The Wayne began its Solar Energy Program in 2007, by installing a 20-panel solar system. Last year, the Forest added 30 more panels to bring the total to 50. The current system is generating 7% of the facilities energy needs. Once the new expansion is completed later this summer, up to fifty-percent of the Wayne National Forest headquarters building will be powered by the sun."
Past references in the news to this project have included little additional information, until this morning.
The Columbus Dispatch published and article in the Business Section called "Solar Power Bolts Forward" (
http://www.dispatch.com/live/content/business/stories/2009/03/31/moresolar.ART_ART_03-31-09_C10_MFDDBNP.html) which included some additional and interesting information.
The US Forest Service is outfitting a building with solar panels for $398,000 that will reduce the annual electric bill by (up to) half. The article states that the past twelve month's electric bill was $31,000. It also states that the project will pay for itself in 10 to 15 years.
That can't possibly be so.
Simply using last year's expense, and the quoted forecast, basic math show us that "payout" is between 25 and 40 years. The only way to make this expense payout somewhere within the reasonably lifespan of the solar panels, is to dramatically increase the cost of electricity, and soon. Here in Ohio, electricity means coal. About 90% of our electricity comes from coal (by the way, Ohio is one of the nations leading consumers of
electricity).
Lets look at this. The total annual bill is $31,000. We don't know how much electricity that is, but using the Energy Information Administration (
http://www.eia.doe.gov/) data in Ohio electricity costs about ten cents per
Kilowatt hour, we can estimate that the US
Forest Service Wayne National Forest Headquarters uses about 310,000
Kilowatt hours of electricity per year. For a point of reference, the best solar panel generated electricity runs around fifty cents per
Kilowatt hour. Ohio is not Arizona or Hawaii, unfortunately we have clouds from time to time...
It will take about 126 tons of coal (one ton of coal will generate 2,460
Kilowatt hours) to generate the power for the HQ. Now coal costs about $30 per ton, so that is $3,780 worth of raw fuel to provide $31,000 of electricity for the HQ.
The DOE says coal fired power plants release two pounds of CO2 per
Kilowatt hour. HQ currently is responsible for 620,000 pounds of CO2 "
pollution", 310 tons.
We have two issues here. A financial problem, and an environmental
pollution problem.
Financials. The US Forest Service says their $398,000 expenditure will payout in 10-15 years. Let's use their disclosed electric cost for lack of actual data. $31,000, and let's assume they can cut that in half with the solar panels, $15,500 per year. We are not going to considering time/value of money or future price fluctuations for electricity, we simple divide - 398,000/15,500 = ~25 years. We can tweak the financial model, but we doubt we can tweak it to get a 10 year payout. That would require, again ignoring the value of money, annual maintenance and replacement costs, and the balance of the electric bill which (at least half) , their annual electric bill would need to soar from $31,000 per year to nearly $80,000 per year, right away, and for the next ten years (forget about any maintenance service costs) to get an annual electric bill of $39,800 "saved" for ten years!
On the CO2 "
pollution" side of the equation. They currently are responsible for spewing 310 tons of CO2 into the atmosphere per year. Again we are
halvsies, so the solar panels will replace 155 tons of CO2
emissions. Did you know that you (or they) could buy offsetting CO2 credits for between $2 and $15 per ton? So for no more than $2,325 per year they can offset the CO2.
We suggest putting the $398,000 in a savings account and using the interest to offset the CO2 and the account will never run out, EVER, in fact it will probably GROW.
Why is almost a half a million dollars being spent on this project? 2 net jobs for the year? Another future property maintenance liability? In the most basic sense there is no justification, financial or environmental (for this site specific case).
We propose that America's efforts are better spent practicing conservation (reduce consumption!), to ramp up research funding, and work diligently to keep the flow of affordable energy moving so that we can climb out of this economic hole stronger than before.
Increasing the cost of energy to make stale technology viable is wasteful, and bad policy, and at this strained economic time, a potential death knell for our high quality of life.
