Wind Turbine Design and Construction - Ohio, September 23-27 2014

Submitted by admin on Sat, 08/30/2014 - 15:30

Yellow Springs, Ohio, at Antioch College, September 23-27, 2014

We're offering one final 5-day Wind Turbine Design and Construction (Homebrew Wind Power) class for 2014! This is your last chance to take this awesome class until Spring of 2015. Cost is $800 per student.
You can see the class syllabus here.

Midnite Solar Rapid Shutdown System

Submitted by admin on Wed, 04/09/2014 - 10:35

The new 2014 National Electrical Code (NEC 2014) contains a somewhat controversial new rule intended to protect firefighters who have to work on rooftops where solar photovoltaic (PV) systems are installed - Article 690.12, Rapid Shutdown of PV Systems on Buildings.

It requires a shutdown system with which emergency responders can de-energize the entire solar array within 10 seconds from a clearly-marked central switch before venturing onto a rooftop for firefighting.