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off-grid

Hybrid solar-wind power connects rural Navajos

NAVAJO RESERVATION, N.M.--Power transmission lines run a few hundred yards behind the Johnson family home here, but it took an off-grid solar and wind generator to finally bring them electricity service.

The Johnsons, who live on a remote stretch of land on the Navajo Reservation west of Farmington, N.M., are among about 200 families on the Navajo Reservation who rent an off-grid renewable-energy system from the rural utility. They opened their home to visitors last week during a fellowship organized by Institutes for Journalism & Natural Resources.

The hybrid power generator, which was installed in February, combines … Read more

India to plug in solar-powered telecom towers

The high-powered schmoozing at the World Economic Forum in Davos, Switzerland, has yielded a project to install solar-powered cell phone towers in India.

Vihaan Networks Limited (VNL) and lithium ion battery maker Boston Power today announced that VNL will test the small-scale telecom stations with Boston Power's batteries. VNL had originally developed the system with lead acid batteries.

The communications-based stations, called WorldGSM, are designed to operate entirely from a few solar panels and are not connected to the grid. The Boston Power batteries can power the tower, which can be set up in half a day, for up … Read more

Fenix launches off-grid power for developing world

Whereas many Silicon Valley tech entrepreneurs are trying to cook up the next Facebook or cool iPhone app, a group of San Francisco entrepreneurs is designing a brick-shaped battery for poor people.

"Social venture" Fenix International officially launched yesterday with the opening of its Web site, which describes its plans to sell off-grid power systems for people in developing countries.

It plans to start manufacturing its battery pack this fall and is now negotiating with potential distributors in Africa, India, Bangladesh, and Latin America, company executives said today. It plans to first launch its products in four African countries first.

Fenix International, a for-profit company, is trying to reach the 1.6 billion people who live without regular access to electrical power, explained CEO Mike Lin, a former Apple employee and environmental engineering lecturer at Stanford University, who started the company almost two years ago.

The company's core product is a 12-volt lead acid battery designed specifically for frequent charges from a variety of sources, including a solar panel, bicycle generator, the power grid, or eventually hydro and small-wind turbines.

The battery, called the Fenix ReadySet, includes two cigarette-lighter and two USB ports for charging mobile phones, LED lights, fans, or other small electronics. Company engineers created a custom formulation of lead acid battery so it can last for years and adapt to different power sources.

Demand for electric power is soaring in "frontier countries" because of mobile phones, explained Lin. There are now 500 million off-grid mobile phone subscribers around the world right now but growth is being limited because of no power or unreliable power, he said.

The company's strategy is to sell its ReadySet batteries--priced at about $150 with a power source, such as a solar panel--through phone distributors, which are losing potential revenue because customers can't keep phones on. … Read more

Solar Pebble could light the way for rural Africans

A solar-charged light might seem like just another green gadget to the average American, but for families in rural Africa, it could prove revolutionary.

Product design consultancy Plus Minus Design is vying to replace unsustainable and potentially dangerous lanterns in the homes of off-grid Africans with the Solar Pebble. Engineered with the economic constraints of developing-world citizens in mind, the Solar Pebble will provide one hour of LED light for every two hours of charge, and will cost only $2.70 to manufacture.

Plus Minus Design, based in Leeds, U.K., was founded by three undergraduate students at the University of Leeds. While studying product design and engineering, Adam Robinson, Henry James, and Tom Eales were given the opportunity to work with SolarAid, a charity in the U.K.

SolarAid, which works to fight poverty and climate change, worked with the students to develop a solar-powered alternative to kerosene lanterns. Those lanterns, commonly used in rural Africa, draw 20 percent of an average Malawian family's income, SolarAid said, and pose respiratory health problems, as well as create fire hazards. … Read more

A week off the grid and in touch with energy

There's nothing like living off-grid for a while to make you aware of your environmental and energy footprint. During a family vacation to Belize last week, I got a flavor for what's needed to function, albeit at a leisurely pace, when you're far beyond the reach of power lines.

This was a special trip, mostly paid for by my wife's company as a gift for 20 years of work. So we made the most of it, traveling to some seriously nice spots with an eye toward experiencing the great natural resources of this small Central American … Read more

One Block Off the Grid: Bulk solar, tell your friends

Corrections made at 8:20 a.m. PT to number of Twitter followers and number or regions it works in.

Just like you need an accountant to navigate the tax code, you need an agent to get a good deal on solar panels, according to One Block Off the Grid.

The San Francisco-based start-up on Thursday announced that it has secured a series A funding round of $5 million from New Enterprise Associations to expand its operations. It follows angel funding it raised a little over one year ago.

One Block Off the Grid seeks to make it cheaper and … Read more

Off-grid solar to be used in Haiti relief efforts

Solar-powered equipment for water, lighting, and communications is being sent to Haiti as part of the reconstruction efforts following last week's devastating earthquake.

Fort Pierce, Fla.-based manufacturer Sol on Tuesday said it shipped 15 of its solar streetlights to Haiti as part of an aid mission. With hospitals operating without power, the lighting can be used to extend the time that doctors can treat the wounded, company executives told WPTV.

Sol intends to donate another 100 of its streetlights, which have a small solar panel mounted above an LED lamp, but it has not yet connected with an … Read more

Going off grid? Xantrex introduces hybrid solar power inverter

Inverter maker Xantrex on Monday announced an overhaul to its inverters that let people combine a renewable energy source with some back-up power.

Inverters convert direct current generated by solar panels or a wind turbine to household alternating current. When the power goes out, the Xantrex inverter draws on batteries to meet the household's load.

The Trace Series Inverter/Charger replaces its existing DR line that the company has sold since the 1990s which is most used in countries that don't have reliable power supply.

The updated Trace Series is more user friendly to operate and is more … Read more