Fat hurts wrote:
The price and efficiency of solar and batteries is dropping so fast that it will soon be cheaper for millions of homes to go off grid. Yes, you will need excess solar power and some might be wasted. But that's OK.
Off grid won't work for everyone, but the disruption is coming and it will cause higher prices for those who are stuck on the old-fashioned grid system. Government might have to step in and impose some new taxes just to keep the old grid going.
Off the grid means 2x+ the amount of solar compared to being NZE (Net Zero Energy). Most homes do not have the roof area to do that.
Because the Sun moves around in the sky it makes more sense to stay grid connected. That is the greener solution because any excess energy your system generates can provide energy to homes, and businesses, that could cover their entire property and still not be able to go off the grid.
So, the solution to lifting all energy boats is what I call community solar; a solar farm. That is local grid tied common-use array solar, with some individual homes, with solar panels, that helps everyone in the committee be minimal energy importers (you still want to be connected to the larger grid to avoid what is happening in Texas).
The above is the solution that has been uses in Europe for decades. Here is an image of such a solution in France (called Les Mées). What I like about their solution is that they respected the environmental contours and let the solar panels flow with the terrain. In the U.S. the solution would be to plow the hills flat -- barf. The system below covers 500 acres, and has 110,000 solar panels.
https://offgridworld.com/wp-content/uploads/2015/04/solar-farm2-700x400.jpeghttps://www.amusingplanet.com/2015/04/the-les-mees-solar-farm-in-france.html