Rob Day is a Partner with Black Coral Capital, based in Boston. He has been a cleantech private equity investor since 2004, and acts or has served as a Director, Observer and advisory board member to multiple companies in the energy tech and related sectors. Rob was a co-founder of the Renewable Energy Business Network (www.rebn.org), a non-profit organization which was acquired in 2009 by the Clean Economy Network. He also writes the Cleantech Investing column at GreentechMedia.com. The views expressed on this blog are those of Rob, not necessarily the views of any of his colleagues and affiliated organizations. You can follow Rob on Twitter @cleantechvc and contact Rob at firstname.lastname@example.org.