May 11 (Reuters) - Tecogen Inc TGEN.O :
* Current sales backlog of equipment and installations as of
friday may 6, 2016 was $13.1 million
* For quarter ended march 31, 2016 , backlog was $11.5
million over the $10.9 million in backlog reported at same time
last year
* Tecogen announces first quarter 2016 results
* Q1 revenue fell 17 percent to $5.076 million
* Q1 loss per share $0.05
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