Do You Need to Wash Your Rooftop Solar Panels?

solar

It is a question gnawing at people who live and toil beneath rooftop solar panels: To wash or not to wash away accumulating dust?

The answer is don’t bother hiring a panel washer to let in the sunshine, according a study by a team of engineers at the University of California San Diego. You are highly unlikely to earn your money back in electricity.

Does solar add value to your home?  Contact the appraisers at www.scappraisals.com for your value questions; they specialize in green homes.

“The vast majority of solar-energy systems certainly get some dirt, but it has a fairly low impact on how much energy they produce,” said Jan Kleissl, the study’s principal investigator and an aerospace engineering professor at UC San Diego

The study looked at output from solar panels on homes and bigger buildings across California that report electricity output in return for rebate incentives from state government. Those data from 2010 were cross cataloged with rainfall events, assuming that a strong rain would clean a panel fairly thoroughly.

The analysis included California’s summer drought period, when rain can be scant for five months.

It found panels that had not been rained on or cleaned for 145 days lost little more than 7 percent of their efficiency. A mid-summer cleaning, under those dusty circumstances, might generate an extra $20 of power.

Read more at: http://www.utsandiego.com/news/2013/aug/05/dirty-solar-dilemma/

Disclaimer: for information and entertainment purposes only

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s