from off grid to grid tie in
blue Registered Users Posts: 35 ✭✭
I have 15 x 100 watt panels in an off grid configuration with 8- 114 ah 12volt batteries. I plan to switch eventually and get more panels and go to grid tie in. Can I still use these 15 renogy panels with a grid tie in system. I know it is more practical to use 300 watt panels that have micro inverters. But what do I do with the 15 -100watt panels?
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GT Solar can be highly location specific... Both building permits and utility. So the first question is can you use the present array (will the inspectors accept the array, or will they require you to bring up to present code--If it presently does not comply). And are the panels UL/NRTL Listed? You have to have to match the series/parallel configuration to whatever GT Inverter you will choose (1.5 kWatt GT inverters are getting fewer these days; either larger inverters or micro inverters--and the micro inverters may not be "Listed" for use with these panels/configuration).
New "value" of these panels is probably much less than $1 per Watt, and you can purchase new panels at less than $1 per Watt... So the issues of trying to keep these panels on a GT system may not be worth it...
If you have the room to keep the older panels... A 1,500 Watt array with an 800 AH @ 12 volt or ~400-800 AH @ 24 volt battery bank (10% to 5% rate of charge)--You could have a nice backup power system (for just the price of maintaining a battery bank)... How reliable is/will be your power?
- Assorted other systems, pieces and to many panels in the closet to not do more projects.