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Light tubes (also known as solar pipes, tubular skylights or sun tunnels [1]) ... such products may have lower installation costs but do consume energy during use; ...
The nesting of row covers and low tunnels inside high tunnels is also common. [1] Superbay Polytunnel at Van Arnham Nurseries. Polytunnels can be used to provide a higher temperature and/or humidity than that which is available in the environment but can also protect crops from intense heat, bright sunlight, winds, hailstones, and cold waves.
A solar power tower at Crescent Dunes Solar Energy Project concentrating light via 10,000 mirrored heliostats spanning thirteen million sq ft (1.21 km 2). The three towers of the Ivanpah Solar Power Facility Part of the 354 MW SEGS solar complex in northern San Bernardino County, California Bird's eye view of Khi Solar One, South Africa
The latest form championed by the Democratic governor is a single giant tunnel, down from two tunnels proposed by his predecessor, Jerry Brown. California's water tunnel to cost $20 billion. State ...
A new analysis shows that building a California water tunnel would cost $20 billion. State officials say the project's benefits would far outweigh the costs.
[2] [3] [4] Sunrun is responsible for installation, maintenance, monitoring and repairs. [5] [6] The company raised $12 million in venture capital funding from a group of investors including Foundation Capital in June 2008. [3] In 2009, Sunrun closed a Series B round of funding for $18 million led by Accel Partners and joined by Foundation Capital.
The Stark County Park District voted to spend 47% more to proceed with the project to build a tunnel to connect Jackson High School and North Park.
VELUX is a Danish manufacturing company that specialises in roof windows, skylights, sun tunnels and related accessories. The company is headquartered in Hørsholm, Denmark and is a part of VKR Holding A/S. VELUX Group is a founding partner of the global Active House Alliance.