Increasingly spectacular amusement rides, more and more complex technologies
Event is chance for city to lead the drive in growth industry
PV Guangzhou 2013 will be held in China Import & Export Fair Pazhou Complex from August 19th to 21st, 2013. We sincerely invite you to participate in or visit our show.
World-first simultaneous measurements upwind and downwind from a wind turbine delivered by ZephIR Dual Mode to DTU Wind Energy (Risø)
The measurements were taken using two ZephIR Dual Mode systems
TÜV Rheinland at Carbon Expo 2013: Sustainable services for carbon markets in developed and developing countries
Carbon Expo trade fair in Barcelona from May 29-31, 2013
A Scottish technology start-up has invented groundbreaking 3D software that could revolutionise the planning process for wind farm developments
Conergy and Gamma Solutions realise 9 solar plants on public buildings
One Million Run Hours; Zero Failures
Callahan made the announcement about the future of SEEA during the Alliance's EE Global Forum held in Washington, DC.
Join us for an exciting, two-day battery seminar on August 13 & 14, 2013 in Detroit, MI (USA).
The wind is faster at higher altitudes and wind power is directly proportional to wind velocity cubed. But mounting a turbine up high makes it more expensive to install and maintain, and requires a stronger tower to support such a top-heavy structure. Engineers at SheerWind have a solution: “scoop” the air from up high and bring it down low to drive a ground-level turbine. Oh, and while they’re at it, how about amplifying the wind speed too? SheerWind coined the term INVELOX - INcreasing the VELOcity of wind - to describe its innovative design. Using a giant omni-directional funnel whose mouths are mounted at the top of a tower, INVELOX brings the wind down to ground level and sends it out through a narrow neck, which increases the wind speed, much like putting your thumb over the end of a garden hose and leaving a tiny opening will increase the water velocity. This makes the turbine smaller, decreasing its cost. And because the turbine is on the ground, routine maintenance doesn’t require climbing a tall tower. Funnel mouths facing all directions eliminates the need for the turbine to rotate towards the wind, resulting in fewer moving parts, less complexity, and increased reliability. Since traditional turbines have relatively high start-up speeds (8 MPH or 3.6 m/s is typical), they can’t generate electricity at lower speeds. Because the INVELOX design increases the speed of the wind before it reaches the turbine, it allows the system to generate power at wind speeds as low as 2 MPH (0.9 m/s).
Each year the MREA Energy Fair transforms rural Central Wisconsin into the global hot spot for renewable energy education. The Energy Fair brings over 20,000 people from nearly every state in the U.S. and several countries around the world.
Rodman & Rodman, P.C., providers of specialized green energy and clean technology accounting and tax services, explain House Bill No. 2915
Commercial production of solar windows, using the patented SolarWindow spray-on solar power coating system, may be just around the corner. A recent announcement from US building integrated photovoltaics (BIPV) developer New Energy Technologies Ltd. (which we’ve been following for years) has us feeling that the time may soon come. As per New Energy Technologies’ recent announcement, the big news is that the fabrication time of the technology has been greatly reduced. The fabrication process, which involves methodically spraying layers of extremely small solar cells onto glass, has been reduced from a couple of days to only a couple of hours. According to the company, the process has been cut to 1/6 of the previous fabrication time. And perhaps as significantly, New Energy has also reported that it has achieved “a two-fold increase in power conversion efficiency” and improved the transparency in the glass.
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Solar & Wind - Featured Product
Morningstar's TriStar MPPT 600V charge controller leverages Morningstar's innovative TrakStarâ„¢ MPPT technology and our 20+ years of power electronics engineering excellence, to enable the widest input operating voltage range available from a solar array, wind turbine or hydro input. This controller's standard and DB versions are for off-grid applications, and the TR versions were developed to enable retrofitting grid-tied systems with battery backup.