Test meters http://solarconsumerreporting.webs.com/apps/photos/ Test meters inSOLmeter watts per meters squared perfect is 1000 w m2 http://solarconsumerreporting.webs.com/apps/photos/photo?photoID=43395382 43395382 inSOLmeter btu mode http://solarconsumerreporting.webs.com/apps/photos/photo?photoID=43395383 43395383 green meter shows REC how much clean energy you produce http://solarconsumerreporting.webs.com/apps/photos/photo?photoID=43395384 43395384 utility meter- green meter http://solarconsumerreporting.webs.com/apps/photos/photo?photoID=43395385 43395385