Re: Single family home microgrid
Solar Builder Residential Solar Storage Buyer's Guide 2020 just out. Mentions SMA briefly but not Tesla Energy or SimpliPhi:toggle quoted message Show quoted text
https://www.tesla.com/powerwall , https://www.tesla.com/powerpack
On Mon, Jul 6, 2020 at 11:42 PM, Jim Duncan wrote:
A SMA system that includes a Sunny Island inverter and a traditional SMA string inverter, along with a battery bank, will also continue to allow the PV to charge the battery. The SI will "fool" the grid tied inverter into continuing to produce AC power even when the grid is not available by simulating the 120V/60 Hz signal that the inverter must sense to stay in operation. As long as the sun is shining the PV array will work normally and [hopefully] keep the battery charged enough that all your backup loads will operate. The SMA Sunny Islands are only rated for 120 VAC each and have been around since about 2005.