Re: [RE-wrenches] Tigo Tech Support Response

2012-10-17 Thread Larry Crutcher, Starlight Solar Power Systems
Dan, Thanks for posting this. I am fascinated and puzzled with their response. Why would they not advertise this point? I see nothing on their site that suggests the Module Maximizer functions with off-grid PV systems. Many battery based systems that we have installed over the years certainly c

Re: [RE-wrenches] Tigo Tech Support Response

2012-10-17 Thread David Katz
Larry and Dan, Jacob's response is a bit misleading. Tigo Maximizers operate in the buck mode, by lowering the voltage of a shaded module and increasing the current to match other modules in a string, so the unshaded modules are not affected. If you use Maximizers in an off grid situation, you

[RE-wrenches] GE 200 watt module failure

2012-10-17 Thread William Miller
Friends: We were called to resolve problems with an off-grid PV install done by others. The installation is 18 200 watt GE modules about 6 years old. The modules are direct mounted on S5 clips in strings of three. We found half of the modules were in failure. A few showed signs of heat dam

Re: [RE-wrenches] Isofoton module needed

2012-10-17 Thread Jonathan Hill
Dear wrenches-I have a client who has a grid-tie system with about 40 Isofoton I-150S/24 modules. One of them has failed and he is looking for a replacement. Doesn't need to be the same, but something electrically compatible that he can put in the string will do. Anyone have anything he could use?