Much has been written on this site concerning the considerable potential of solar plus storage possibilities. This post goes into an exciting real life case study.
This post comes by way of a Miami Herald article.
The Mayor of South Miami has decided to showcase the potential of combining solar panels with a home energy storage system.
Philip Stoddard has long been a proponent of renewable energy. He lamented Reagan’s decision to remove the solar panels that Carter put on the White House. “We’re smarter now, aren’t we?”
As anyone who lives in Florida can attest, any given hurricane can knock out power for many days. This was the main impetus for Stoddard’s experiment of seeing if he and his family can be energy self-reliant for 7 days.
Stoddard, his wife and three kids have a fairly average sized solar panel system of 7.5 kw and two Tesla Powerwalls that can store a total of 27 kWh. The combined continuous power that can be drawn from two powerwalls is 10 kWh.
As this was a first for Stoddard, he was certainly concerned about whether this experiment would deliver positive results. After all, most of us expect reliable and abundant power for the many different appliances that we use. Two specific concerns were air conditioning and their electric clothes dryer, appliances that use significant amounts of electricity.
While it was close, the family’s solar panel system and energy storage systems were able to provide for all of their energy needs for seven days.
There must be a catch, right? They must be paying a fortune for this ability. Actually, no. Stoddard mentioned – “It typcially takes seven or eight years to pay off a system and get free electricity. Depending on how much of your electric bil you want to cover, you figure you get about a 14 percent return on your capital investment. If I could get that same return on investment in my retirement account, I’d put it all in solar. You can’t count on the stock market, but you can count on the sun. Solar provides the one opportunity for the average American homeowner to save money while saving the planet.”
What’s truly exciting about this story out of Florida is not just that the experiment was a success. This is no surprise because the technology has been tested and proven reliable. Instead what is exciting about this is the fact that adding solar plus energy storage is now cost effective, especially in the higher priced electricity areas of the country. The fact of the matter is that no matter how many homeowners would like to do the right thing environmentally and be energy self-sufficient, they won’t unless they can afford it.
It’s great that mayor Philip Stoddard is doing his part in creating awareness for his fellow Floridians about what is possible concerning solar and energy storage.