Hillary Clinton is calling for a 700% increase in solar power. Is that realistic?

Brad Plumer for VOX:  In the coming months, Hillary Clinton's campaign is planning to release a series of proposals for dealing with global warming. Her first installment is out Sunday evening, and it calls for a large increase in renewable power. Specifically, she's proposing to boost the amount of wind, solar, and other renewables so that they provide 33 percent of America's electricity by 2027 — enough to power every home in the country. Part of her plan would involve accelerating the recent rapid growth of solar installations nationwide. In her proposal, Clinton calls for US solar power to grow 700 percent from current levels. That sounds like an impossibly large number, but it's not implausible on its face. US solar capacity grew 418 percent between 2010 and 2014 (because it was starting from a small base). So 700 percent growth by 2027 is at least within the realm of possibility. But it would require additional policy changes — and clean energy prices would have to keep dropping.   Cont'd...

The Nature Conservancy Installs Bird Safe Wind Power

The Nature Conservancy has completed its first phase of installation of SheerWind's INVELOX funnel-based wind power technology. Because Palmyra is home to a national wildlife refuge and more than a million nesting seabirds, conventional wind turbines were not an option due to the risk of bird strikes. What's more, the low wind speeds on the island would provide little to no energy production with traditional turbines.  The Conservancy turned to the Minnesota firm SheerWind to design the system resembling an hourglass turned on its side. Extending 83 feet horizontally with a big wind scoop at one end, an exhaust on the other, a Venturi section in the middle increases wind speed potentially three to six times. Nets over the intake and enclosed blades keep it bird friendly. The first phase of the installation includes a single turbine inside the Venturi, allowing for two additional to be installed in the near future.  The first phase of the INVELOX project is successfully charging batteries at night and on cloudy days to supplement the photovoltaic system also installed on Palmyra.   

Geothermal Heating and Cooling

Geothermal heat pumps are ideal for use in buildings looking to reduce consumption to net zero.

A Proven Approach To The Challenge Of Building A Leak-proof Array

The current suggested guideline by the NRCA (National Roofing Contractor Association) for the installation of a PV system on a steep slope asphalt shingle roof as far as the flashing of the PV system stanchions, shows the metal flange to be applied underneath the roofing paper.

Acquisition announced for solar power supplier Vivint Solar

On July 20, SunEdison, the world's biggest renewable energy development firm, along with TerraForm Power, an owner and operator of clean energy power plants, announced the acquisition of Vivint Solar, a major supplier of residential solar systems in the U.S. The merger will be worth approximately $2.2 billion in cash as the two major solar companies acquire the residential solar firm. Additionally, SunEdison has agreed to enter a power purchase agreement with TerraForm Power. Roughly 523 megawatts of solar power will be installed by Vivint Solar by the end of 2015, which will now all be moved over to SunEdison. Through the $922 million power agreement, TerraForm Power will install the solar panels for residential solar protections through a "10-year average levered cash-on-cash yield of 9.5 percent," the release stated. Also, TerraForm Power will obtain future small commercial solar and completed residential projects from SunEdison's Residential and Small Commercial business unit.   Cont'd...

Leveraging Simple Solar Installations for Optimized Land Use

Featuring the Cap-Rack™ System by DCE Solar

New Material to Increase Solar Cell Efficiency

A team of researchers has come up with a solar cell that produces fuel rather than electricity. A material called gallium phosphide enables the solar cell to produce clean fuel hydrogen gas from liquid water. To connect an existing silicon solar cell to a battery that splits the water may well be an efficient solution; but it is very expensive. So, researchers were streamlining their search to a semi-conductor material that is able to both convert sunlight into an electrical charge and split water. The team found gallium phosphide (GaP), a compound of gallium and phosphide, useful in this respect. GaP has good electrical properties but the drawback is that it cannot easily absorb light when it is a large flat surface as used in GaP solar cells, said the study thatappeared in Nature Communications. The researchers overcame this by making a grid of very small GaP nanowires, measuring five hundred nanometres (a millionth of a millimetre) long and ninety nanometres thick. "That makes these kinds of cells potentially a great deal cheaper," said lead author Erik Bakkers from Eindhoven University of Technology, the Netherlands.   Cont'd...

President Obama's Low-Income Solar Initiative

There have been enough successful low-income solar pilot programs at the state and federal level that it is now possible to launch a larger initiative with confidence that it can succeed.

Renewable energy boom will mean vastly cheaper electricity

By Lucas Mearian, ComputerWorld:  Renewable energy, combined with prolific battery storage, will soon result in vastly cheaper electricity -- and solar power that's less expensive than what fossil fuel-based power plants can produce. Additionally, solar power with lithium-ion and flow-battery storage systems will make the combination of renewable energy so inexpensive that it will surpass nuclear power and obviate the need for futuristic power sources such as fusion. That was consensus view from a several keynote speeches delivered at the Intersolar Conference in San Francisco this week. Eicke Weber, director of the Fraunhofer Institute for Solar Energy Systems, said that in sun-rich countries, the cost of solar power is already below 5 cents per kilowatt and it will continue to plummet as battery storage systems become more prolific and less expensive. Cont'd...

Intersolar 2015 Tradeshow Report

AltEnergyMag.com has once again partnered with Intersolar to bring all the industry news and exciting new products to help our readers make sense of this key tradeshow. Here we have compiled a list of some product releases from this years show.

Intersolar 2015 - Special News Report

News and Product Announcements from InterSolar North America 2015

New at Intersolar - Single-axis Tracking System for Utility-Scale Solar

The use of a tracking system for a utility-scale project not only reduces LCOE, but also provides more usable power by broadening the power production curve to provide a smoother flow of energy from dawn to dusk.

Modeling Microinverters and DC Power Optimizers in PVWatts

PVWatts performs simplified PV system performance calculations using information about the array's geographic location, orientation, and a set of user-input loss factors

South getting its first wind farm soon as bigger turbines make the region viable

By JASON DEAREN, Associated Press:  On a vast tract of old North Carolina farmland, crews are getting ready to build something the South has never seen: a commercial-scale wind energy farm. The $600 million project by Spanish developer Iberdrola Renewables LLC will put 102 turbines on 22,000 acres near the coastal community of Elizabeth City, with plans to add about 50 more. Once up and running, it could generate about 204 megawatts, or enough electricity to power about 60,000 homes. It would be the first large onshore wind farm in a region with light, fluctuating winds that has long been a dead zone for wind power. After a years-long regulatory process that once looked to have doomed the plan, Iberdrola spokesman Paul Copleman told The Associated Press that construction is to begin in about a month. Right now, there's not a spark of electricity generated from wind in nine states across the Southeast from Arkansas to Florida, according to data from the American Wind Energy Association, an industry trade group. But taller towers and bigger turbines are unlocking new potential in the South, according to the U.S. Department of Energy, and the industry is already looking to invest.   Cont'd...

Hydrogen Gas / Smoke Detector with Intrusion Alarm for Battery Room

From Eagle Eye Power Solutions: The Eagle Eye HGD-3000 Hydrogen Gas and Smoke Detector with (optional) Silent Intrusion Alarm is designed for unattended battery installations or remote shelters containing gassing lead acid batteries and charging systems... Lead-acid batteries on charge emit hydrogen gas after reaching the 80% recharge point. When mixed with enough air, hydrogen becomes a highly flammable gas that can ignite easily with just a spark, destroying equipment and harming personnel. The lower explosive level (LEL) for hydrogen is 4.1% by volume. Hydrogen Gas Detection Attach the HGD-3000 to the wall, ceiling, or optional junction box using the mounting holes at the top and bottom of the detector box. The HGD-3000 will turn on an exhaust fan when hydrogen gas levels reach 1% and will alarm at 2%. This alarm consists of a local 80db horn, a flashing red LED, and a dry contact switch closure for remote alarming. Smoke Detection The photoelectric smoke sensor detects minute combustion products from smoldering wire insulation, battery cases, and other material. When smoke is detected, a distinctive alarm is emitted from the 80db horn and a separate dry contact switch is activated. At this time, the exhaust fan is inhibited in order to deny the fire increased oxygen from outside air. Temperature, Loss of Power, & Intrusion During normal operation and in the absence of an alarm condition, an internal thermostat will turn on the exhaust fan at a preset temperature to reduce heat buildup in the room. Loss of power to the unit will also generate a dry contact alarm. Additionally, an optional infrared intrusion alarm will trigger a silent dry contact switch. Product website

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POWER RAIL™ Commercial Mounting System

The Power Rail™ Commercial Mounting System is designed with the professional PV solar installer in mind. Both the XD/UD and LD/MD rails feature single tool assembly with the revolutionary patented RAD™ Lock-in-Place bolt for fast and secure module clamping. The high strength marine-grade aluminum rails include an integral wiring channel for securing cables and providing a professional finish.