Solar

SOLAR POWER

Aaron Anderson, a Dragonfly Solar contractor, right, hands a solar panel to Dahlton Felix during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson; Dahlton Felix

SOLAR POWER

Aaron Anderson, a Dragonfly Solar contractor, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, carries a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

Dragonfly Solar contractors work during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Dragonfly Solar contractors work during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, carries a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, carries a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

Aaron Anderson, a contractor for Dragonfly Solar, adjusts a retaining clip during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, carries a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, left, places a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, carries a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

Dahlton Felix, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption ***Dahlton Felix

SOLAR POWER

Dahlton Felix, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption ***Dahlton Felix

SOLAR POWER

Aaron Anderson, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Aaron Anderson, a contractor with Dragonfly Solar, left, secures a solar panel as Dahlton Felix looks on during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson; Dahlton Felix

SOLAR POWER

Dahlton Felix, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Dahlton Felix

SOLAR POWER

Dragonfly Solar contractors secure a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg

SOLAR POWER

Aaron Anderson, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Aaron Anderson, a contractor with Dragonfly Solar, carries ladders during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Dragonfly Solar contractors prepare to mount a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg

SOLAR POWER

Solar panels stand at a Heartland Power Cooperative site in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Dragonfly Solar contractors secure solar panels at a Heartland Power Cooperative site in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Solar panels stand at a Heartland Power Cooperative site in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Solar panels stand at a Heartland Power Cooperative site in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

Aaron Anderson, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Aaron Anderson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, places a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

John Johnson, a site supervisor for Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** John Johnson

SOLAR POWER

Dragonfly Solar contractors place solar panels during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg

SOLAR POWER

Dahlton Felix, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Dahlton Felix

SOLAR POWER

Dahlton Felix, a contractor with Dragonfly Solar, secures a solar panel during construction of a solar array for Heartland Power Cooperative in St. Ansgar, Iowa, U.S., on Friday, Jan. 23, 2015. Heartland Power Cooperative, one of over 900 electric cooperatives in the United States, serves 5,200 members in northeast Iowa. The solar project will be comprised of 2,706 315-watt solar panels made by SolarWorld Corp., capable of generating approximately 852 kW of electricity. Photographer: Daniel Acker/Bloomberg *** Local Caption *** Dahlton Felix