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- Thu Nov 03, 2011 7:23 pm
- Forum: Home Energy Area
- Topic: Does it have to go on the roof ??
- Replies: 7
- Views: 12782
I agree that much benefit is lost if you end up with no power when mains fail - see here: http://www.sma.de/en/products/backup-systems/sunny-backup-set-s.html" onclick="window.open(this.href);return false; a back up set to meet (with battery storage of course) this very need (I'm told they are very ...