[RE-wrenches] Structural Engineer for Resdiential Project in MA

Dear Wrenches, I am preparing to install a flush mount roof top solar PV system on a friends home in North Central Massachusetts. The local building department would like a stamped letter from a MA engineer certifying that the roof structure can support the additional load of the PV system. I ha

[RE-wrenches] Data acquisition system for Mass-CEC

Hello Hard Working Wrenches, I am working on a residential grid tied PV system design for a friend in Massachusetts. He would like a DAS that reports automatically to the Mass-CEC. Does anyone have a suggestion for a reliable DAS solution? Thank you, Jibril Tava Solar LLC jib...@tavasolar.com

Re: [RE-wrenches] SMA Secure Power Supply

Hello again Solar Folk, I just heard back from SMA tech support. Not possible. With no communication between inverters there is not way to sync the sine waves and keep it all "pretty." Alas. . . Thanks again, Djibril On Mon, Jul 29, 2013 at 3:44 PM, James Gustafson wrote: >

Re: [RE-wrenches] SMA Secure Power Supply

Hello Solar Folk, I'm wondering if it is possible combine the secure power source outputs of two SMA SBTL-22's in series to run a 240v load, like a small well pump. Does anyone have any ideas about the feasibility of this concept? Thank You Much, Djibril On Mon, Jul 22, 2013 at 5:46 AM, Carl Ad