Green Tech

The average consumer isn't likely to spend much effort managing home energy. Big power users in businesses, on the other hand, will go out of their way cut down on waste.

Start-up company Tenrehte, based near Rochester, New York, launched its PicoWatt smart outlet at CES two years ago, aiming to appeal to green-minded consumers. The idea is that a sub-$100 Wi-Fi-enabled smart outlet would transmit energy data to an online app which would let consumers save money by scheduling things to run at off-peak times.

Now two years later, Tenrehte has changed its focus to industrial and … Read more

Cree is trying to put LED lighting on the same price and performance curve that people are used to with computers.

The company today announced redesigned LED light sources that promise a significant cut in the cost of LED lighting and a quicker pace of technical improvement.

Cree estimates that the new design, which uses smaller LED chips, can cut the cost of the LED components by 50 percent. At retail, that translates to a roughly 25 percent cost reduction, said product marketing manager Paul Scheidt.

"LEDs are at the point where the technology is good enough to get … Read more

An energy project in Austria will use biogas-powered fuel cells at homes and businesses to pump power into the grid.

ClearEdge Power today announced a deal with Austrian energy company Gussing Renewable Energy to supply 50 megawatts worth of fuel cells between now and 2020 for installation in Austria. The deal will be worth $500 million over that time, making it one of the biggest contracts for stationary fuel cells.

In the first phase, ClearEdge Power's large refrigerator-size fuel cells, which each can generate five kilowatts of electric power and heat from gas, will be installed to power groups … Read more

Consumer electronics companies are muscling into lighting with LEDs.

RCA said today at CES that it will manufacture LED bulbs as part of a larger home theater announcement. The company said that it developed a "chip on a board" that uses a single efficient LED light source, rather than several smaller ones. That design optimizes the energy efficiency of the bulb, said Bob Hatefi of RCA licensee BDC in a statement.

As energy-efficient lighting standards take hold in the U.S. and around the world, expect more electronics companies moving deeper into consumer LED lighting. Late last year, … Read more

Marvell Semiconductor is trying to get in on the ground floor of the smart home.

Today at the Consumer Electronics Show, the company announced a chipset that can add wireless networking to home appliances and LED light fixtures. The gear is designed to make it relatively cheap for manufacturers to make connected versions of common goods, such as thermostats and dishwashers.

A smart home that lets people remotely monitor and control appliances and electronics is likely to be a theme at CES this year as it was last year.

One of the technical challenges with making household items network-aware is … Read more

Modernizing 150-year-old battery technology may be one of the cheapest routes to hybrid autos.

Axion Power International has a developed an advanced lead-acid battery it hopes will attract automakers and grid storage providers. The basic chemistry and components are the same, but the company has an activated carbon negative electrode, a change that leads to better performance over time, according to the company.

In the auto industry, the company is targeting start-stop hybrids in particular. Also called microhybrids, start-stop systems feature a small battery to run a car's electronics when idle and to aid in accelerating.

Unlike an all-electric … Read more

Do-it-yourself retailer Lowe's later this year will sell three home automation kits designed to plug thermostats and home security gear into a home network.

The company today announced a deal with U.K.-based AlertMe which will provide the equipment and a cloud-based service, called Iris, for home energy management, automation, and monitoring.

The products will be available mid year and be priced for the "mass market," said Kevin Meagher, the vice president and general manager for smart home at Lowe's. All three kits will be self-installable and can be accessed from Internet-connected devices, such as … Read more

General Motors reported solid growth in vehicle sales this year, but its high-profile electric Chevy Volt fell short of targets.

The company reported today that it sold 7,671 Chevy Volts in 2011, fewer than the 10,000 it had expected to sell. There were more than 1,500 Volts sold in December, the best month since the car was launched in late 2010.

Sales of the Volt have been closely watched as a barometer both for uptake of electric vehicles and GM's financial health.

Buyers receive a $7,500 federal tax credit for buying an electric car with … Read more

Navy researchers are exploring whether lowly bacteria found in soil can help survey the outer reaches of space.

The U.S. Naval Research Laboratory yesterday detailed a project to design a "microrover" robot that would be able to explore planetary bodies for long periods of time without human intervention.

To overcome the limitations of today's batteries, researchers intend to use a microbial fuel cell to generate power for a small robot that would weigh about two pounds.

The idea is to have an advanced microbial fuel cell that would generate enough power to maintain the electronics on … Read more