Green Building

The Home Energy Doctor Goes Mobile and Connected

The Home Energy Doctor Goes Mobile and Connected

Jeff St. John: February 9, 2012

Ecova and Aclara promise technology that connects home energy auditors to the smart grid while they’re at your house—and afterwards.

Albeo Sees 300 Percent Increase in LED Retrofits

Albeo Sees 300 Percent Increase in LED Retrofits

Katherine Tweed: February 8, 2012

Maybe it’s not in your kitchen, but growth is big and steady for the LED C+I market.

Secretive Solid-State Lighting Firm Soraa Unstealths

Secretive Solid-State Lighting Firm Soraa Unstealths

Eric Wesoff: February 7, 2012

GaN-on-GaN rather than the traditional GaN-on-sapphire for high-efficiency lighting

Inside Honeywell’s Lawsuit Against Nest Labs

Inside Honeywell’s Lawsuit Against Nest Labs

Jeff St. John: February 6, 2012

Could the thermostat giant’s lawsuit against its high-tech thermostat startup rival have a broader impact on the industry?

Honeywell Seeking to Halt Sales of Nest Labs’ Thermostat

Honeywell Seeking to Halt Sales of Nest Labs’ Thermostat

Eric Wesoff: February 6, 2012

Apple design magic might not remake the home thermostat experience—or prevent patent battles.

Redwood Systems Releases One System for All Lighting

Redwood Systems Releases One System for All Lighting

Katherine Tweed: February 6, 2012

Go ahead and keep those fluorescents, after all.

Guest Post: Fuel Cells on the LEEDing Edge

Guest Post: Fuel Cells on the LEEDing Edge

Mike Upp: January 27, 2012

Fuel cells have been around since the invention of the first bicycle. Now, the training wheels are off—and businesses are saving money and applying to earn LEED credits with fuel cells.

Targeting Energy Efficiency From Both Sides of the Meter

Targeting Energy Efficiency From Both Sides of the Meter

Jeff St. John: January 24, 2012

Retroficiency names Iberdrola USA and Schneider Electric as pilot customers for its utility-facing building energy estimation tool.

Nest Labs’ Thermostat: Sexy? Yes. Functional? Maybe Not.

Nest Labs’ Thermostat: Sexy? Yes. Functional? Maybe Not.

Eric Wesoff: January 18, 2012

Apple design magic might not remake the home thermostat experience.

Cisco’s New Smart Grid Push (Updated)

Cisco’s New Smart Grid Push (Updated)

Jeff St. John: January 17, 2012

Cisco launches smart grid field area networking, architecture services and a network management system to manage it all.

California Proposes Utility Bills as Latest Efficiency Investment Tool

California Proposes Utility Bills as Latest Efficiency Investment Tool

Jeff St. John: January 12, 2012

The latest idea for making building energy financing cheaper and easier? Tying loan repayment to utility bills.

Control4 Goes Quiet on Home Energy Tech

Control4 Goes Quiet on Home Energy Tech

Jeff St. John: January 11, 2012

The high-end home automation company isn’t fooling itself about the challenges of getting customers to buy into energy-saving technology.

LED and Gallium Nitride Tech Hub in Santa Barbara, California

LED and Gallium Nitride Tech Hub in Santa Barbara, California

Doug Widney: January 6, 2012

Blue LED inventor Shuji Nakamura draws talent and funding. 

2011 Saw Greentech M&A Double, IPOs Dry Up

2011 Saw Greentech M&A Double, IPOs Dry Up

Jeff St. John: January 5, 2012

Will 2012 be the breakout year for green technology IPOs? 2011 sure wasn’t.