PREMIUM CONTENT

Rightsizing Solar PV Systems

November/December 2009
This article originally appeared in the November/December 2009 issue of Home Energy Magazine.
SHARE
Click here to read more articles about Electronics
November 02, 2009
If the solar bug has bitten your client, how do you help them to select a rightsized system for their needs?
Energy conservation improvements are often the most cost-effective energy-related improvements that we can make to a building. Energy that is not used is energy that does not need to be generated. Energy conservation improvements include sealing leaks in HVAC ducts; sealing holes in the thermal envelope; upgrading insulation (both its quantity and the quality of the installation); and changing lamps to CFLs or LEDs. Such improvements can produce significant returns for much less than it would cost to install a solar PV system. An investment in energy conservation improvements should usually precede a PV investment. A more-efficient home will use less electricity and will require a smaller, less costly PV system. In the real world, mastic and caulk are not as sexy as a shiny new solar array. So if the solar bug has bitten your client, how do you help them to select a rightsized system for their needs? The answer to this question seems simple. Take last year’s electricity use from the client’s utility bills and invest in a PV system that generates close to that amount. The simple answer may be good if your client pays the same rate all year around, and ...

To read complete online articles, you need to sign up for an Online Subscription.

Once an order has been placed there is an automatic $10 processing fee that will be deducted with any cancellation.

The Home Energy Online articles are for personal use only and may not be printed for distribution. For permission to reprint, please send an e-mail to contact@homeenergy.org.

Email Newsletter

Home Energy E-Newsletter

Sign up for our free monthly
E-Newsletter!

Harness the power of
HOME PERFORMANCE!

Get the Home Energy
e-newsletter

FREE!

SUBSCRIBE

NOW!