How To Choose Solar PV System

Steps in choosing a Solar Photo-voltaic (PV) system:

  • Determine how many Kwh you will need to produce
  • Determine if your location is a good candidate for a solar installation
  • Will this size system fit at your location?
  • Will you tie your system into the power grid (intertie)?
  • Or, will you prefer to tie it to a battery backup so that you will have power even in a blackout
  • Or, both intertie and battery. Note: during a blackout you lose power.
  • Price system/determine installer
  • Purchase and install

How many Kwh?

  • Determine how many Kwh on average you use per day by looking at your utility bills or call your utility and ask
  • Avg Kwh per day / avg hours sunlight per day = Kwh for system
  • Example: 15Kwh used per day / 5Kwh per day of sunlight(CA) = 3Kwh

Suitable Location

  • Location should have unobstructed view of the sun throughout the day
  • For roof installations, southern exposure to the sun gives best results

 

Will size fit your location?

Tie to power grid (intertie)

Battery backup

Intertie and Battery

Price system and determine who will install

  • Locate a local solar installer and have them price system
  • Purchase solar components by self and find electrician to install (Better prices)

Purchase and install system