Green IT

From Smart Meters to Streetlights: Sensus Expands Its Network

From Smart Meters to Streetlights: Sensus Expands Its Network

Jeff St. John: April 18, 2012

The big smart meter maker is now networking LED streetlights in Chattanooga, and wants to expand to other cities and utilities.

Sefaira Raises $10.8M for Fast Handling of Big Green Building Data

Sefaira Raises $10.8M for Fast Handling of Big Green Building Data

Jeff St. John: April 11, 2012

Your green design software just got a boost of adrenaline.

The LED Revolution Needs Dimmer-Compatible Bulbs

The LED Revolution Needs Dimmer-Compatible Bulbs

Jeff St. John: April 9, 2012

“If you pay $20 for a light bulb, it ought to be the best light bulb you’ve ever bought, right?” Cirrus Logic rolls out controller chips for dimmer-friendly LEDs.

GreenTouch Touts 30X More Efficient Fiber-to-the-Home

GreenTouch Touts 30X More Efficient Fiber-to-the-Home

Katherine Tweed: March 27, 2012

Data centers aren’t the only part of IT getting a green makeover.

BuildingIQ, Enlighted Make Strides in Energy-Smart Buildings

BuildingIQ, Enlighted Make Strides in Energy-Smart Buildings

Jeff St. John: March 27, 2012

Smart HVAC startup BuildingIQ partners with Schneider Electric, and Enlighted links its smart lighting with HVAC and demand response.

Vigilent Raises $6.7M for Big-Data-Style Data Center Efficiency

Vigilent Raises $6.7M for Big-Data-Style Data Center Efficiency

Jeff St. John: March 26, 2012

Keeping data centers running efficiently adds up to a big data problem in itself, over time.

GreenSmith, Sendyne, ARPA-E, and the Road to Better Battery Management

GreenSmith, Sendyne, ARPA-E, and the Road to Better Battery Management

Jeff St. John: March 23, 2012

ARPA-E wants technologies that boost battery performance all the way down to the cell level. Here are some startups working on it.

Capitalizing on the Data of Cleantech

Capitalizing on the Data of Cleantech

Staff: March 22, 2012

Is there power in numbers? GTM Research, Johnson Controls, Con Edison, and Efficiency 2.0 decide in this upcoming live stream.

China’s Solar, DC-Powered Microgrid, Courtesy of Intel, Nextek, LBNL and People Power

China’s Solar, DC-Powered Microgrid, Courtesy of Intel, Nextek, LBNL and People Power

Jeff St. John: March 20, 2012

China’s Xiamen University enlists partners to use direct-current solar power for lights, HVAC and data centers. Will DC-to-the-desktop be next?

What’s the Right Standard (if Any) for Smart Lighting?

What’s the Right Standard (if Any) for Smart Lighting?

Jeff St. John: March 15, 2012

Daintree Networks says that smart lighting should be built around ZigBee. But plenty of competitors have their own wireless blends.

Efficiency Retrofits Could Save US $1T in Energy

Efficiency Retrofits Could Save US $1T in Energy

Jeff St. John: March 14, 2012

What’s the value of $1 trillion in energy that is not wasted? Plus, getting there with no-money-down deals.

SCIEnergy Buys Transcend Equity: Watch Out, Serious Energy

SCIEnergy Buys Transcend Equity: Watch Out, Serious Energy

Jeff St. John: March 13, 2012

The combo of building efficiency technology and financing puts SCIEnergy in more direct competition with rival Serious Energy.

Green Server Wars Heat Up: Intel, AMD/SeaMIcro, and ARM

Green Server Wars Heat Up: Intel, AMD/SeaMIcro, and ARM

Jeff St. John: March 7, 2012

Intel launches its latest power-smart servers, and challenger AMD buys low-power server startup SeaMicro.

IBM, Air Force Take Sustainability Software Global

IBM, Air Force Take Sustainability Software Global

Jeff St. John: March 5, 2012

IBM applies its Tririga software to greening the U.S. Air Force’s global infrastructure.

Silver Spring Raises $30M From Hitachi for Smart Grid

Silver Spring Raises $30M From Hitachi for Smart Grid

Jeff St. John: March 2, 2012

Hitachi’s investment in Silver Spring adds up to $30 million, according to filings.