Four New Members At EDTA: Duke Energy, EnerDel, K2 Energy Solutions, and Smith Electric Vehicles

The Electric Drive Transportation Association (EDTA) is pleased to welcome Duke Energy, EnerDel, K2 Energy Solutions, and Smith Electric Vehicles as its newest members.


A low cost solar lantern which easily converts into a powerful reading light.

Evergreen Solar Appoints Rodolfo Archbold as Vice President of Operations

Archbold will be responsible for executing Evergreen Solar's worldwide manufacturing expansion strategy and overseeing factory operations, both wholly owned and through alliances or joint ventures.

SolFocus-Inspira Deal Funds Solar Tracker Innovation

Acquisition Brings Inspira to Next Level; Benefits Global Solar Industry. The deal unites SolFocus, developers of innovative Concentrator Photovoltaic systems with Inspira, providers of high-efficiency solar tracking devices.

Investing in PV Solar Energy

I see great potential in the nano technology area. It is my feeling that if there is a huge blockbuster technology that is going to emerge and "take over" the PV industry, I feel that it will somehow involve breakthroughs and application of nano technology to the area of photovoltaics.

A Bad Boy with a Good Side

It wasn't long before they expanded uses for their favorite new toy, attaching farm equipment to the buggy's hitch (also standard) and using it to mow, till and plant fields. They used its auxiliary power point to run power tools in the woods.


Brazil seeks to produce enough ethanol to replace 10% of the gasoline consumed worldwide by 2012, which requires doubling its current production and increasing the share of exports in total output to 20% from the current 15%.

Concentrated Solar For Hawaii

The collector being enclosed or open faced would require surface care and significant weekly cleaning. Sopogy's panels would park at night, meaning the collector surfaces are protected so as not to be exposed.

Editorial Comments

What is in this issue and what does it mean.

Electric Bikes and Large E-scooters

E-machines have no more maintenance than a bicycle. They are simple, efficient, safe and fun to ride

Environmental Policy May Contain Traces of Nuts

Should we choose to have 20% of our power production ideologically clean, or 80% of our electricity needs atmospherically clean? The answer is: we should do both.

From the Earth to the Moon: Cash or Charge

If successful, the SS2 and the WK2 could pave the way for a much larger craft that could ferry several hundred passengers into low orbital space and the land in another country or continent without the need for expensive jet fuel.


In the Caribbean, the options are essentially the same, but practically wind and solar energy are the most promising short term solutions.

Greenroofs benefits outweigh costs, even in desert environment.

The only severe downsides of having greenroofs in a desert climate are cost of installing it, and then the water use for irrigation. But as we'll see, the water needed for irrigation is more than covered by available greywater.

Hydrogen stations are springing up everywhere!

Spring has been a busy period for hydrogen fueling stations, with five stations recently opening worldwide.

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Solar & Wind - Featured Product

WS510 Secondary Standard

WS510 Secondary Standard

In the monitoring of large photovoltaic (Utility Scale), in assessing potential sites (Solar-assessment), or in up and coming electricity cost saving initiatives projects (Commercial & Industrial), the WS510 now provides the market a secondary standard pyranometer, ultrasonic wind speed, ultrasonic wind direction, temperature, pressure and humidity all in a single unit.. This sensor meets the high demands of the world meteorological organization (WMO) through the active valving at air temperature measurement and the inertia- and maintenance-free measurement of wind speed and wind direction on the ultrasonic principle. Equipped with a Kipp & Zonen pyranometer of the secondary standards, the WS510-UMB Compact weather sensor from Lufft unites the precision of a variety of meteorological individual sensors in a single all-in-one device, for the first time.