If there is a power outage, will my solar system keep making energy?
Many people considering going solar ask if a solar system works during a power outage. If you have a solar battery system as well as a solar PV system, your power will continue to work. However, since your system is grid-tied, for safety reasons, if there is a power outage your solar system will automatically shut off when the power goes out. Solar batteries can add as much as 30% to the cost of a solar system presently, so most homeowners do not go with this option.
Should you wait to go solar until battery back-up is less expensive? Why wait? You can start saving money right now, without battery backup. None of Solar Energy World’s 2000+ Maryland customers have solar battery back-up and they still save 20-100% on their electricity. Homeowners who own their solar systems are generating extra income and making profits from the excess energy their system produces. Typical ROI is 125% in 5 years and just keeps going up after that. Homeowners who choose a Solar PPA, pay $0 for solar panels and installation to lock in an electricity rate that is lower than their utility.
Battery storage will definitely come down in price as manufacturers perfect the technology, and when that day comes, you will be able to add a solar battery back-up system to your current solar PV system – so really, there is no logical reason to wait for battery costs to go down to go solar. The longer you wait to go solar, the more money you give away to your utility company with no hope of ROI or savings since never-ending utility rate hikes are a fact of life.