While it wasn’t mentioned, to have that actually happen would require the Johnson’s to have a battery backup system that stored solar energy produced by their solar panels.
More solar energy systems now include backup batteries, which are added to the solar panel installation. However, it will likely be necessary for most families to remain on the grid. In any case, a battery backup would enable the Johnson’s lights to stay on at night, provided there was enough charge left on their battery.
In other words, being on the grid, and having only solar panels, will still allow for a power outage. However, an added backup battery system allows for an independent home electricity supply, once solar panel energy production resumes during daylight hours, or as previously stated, there’s a remaining charge on the battery.
It’s also worth noting that in the past, and perhaps the future as well, in order to qualify for the federal ITC (Investment Tax Credit) a backup battery system has to be charged 100-percent by the solar panels.
There are a number of promising and innovative solutions to build electricity security into our system now, especially alongside the anticipated near-term growth in renewable energy capacity. Here are a few:
• Microgrids are self-sufficient energy systems with a smaller, distinct geographic footprint, such as a college campus, hospital complex, or neighborhood. Their relatively small scale also makes microgrids more easily powered by renewable energy sources, which has the added benefit of reducing emissions from power generation.
• Smart grid technologies include sensors that allow operators to assess grid stability and provide consumers with better information about outages.
• Hardening the grid refers to measures that fortify the system against damage. Examples include tree trimming along power lines, replacing wooden electrical poles with steel or concrete, and burying overhead transmission lines.
• Bidirectional charging is not yet a standard feature for most electric vehicles, but manufacturers are exploring capabilities that would allow vehicles to power homes during blackouts and serve as an energy storage resource for the grid.
• Incentives can further encourage customers to cut back on usage during peak times. Source: Climate Central Report | September 14, 2022