energy

Need a better thermostat? Look to your smartphone

For many, the ballyhooed smart home of connected devices will start with the lowly thermostat.

Startup EnergyHub today is releasing data from a study of customers who bought a Wi-Fi enabled thermostats tied to EnergyHub's Web service. It found that letting consumers operate the thermostat from a familiar PC or smartphone application, rather than on the thermostat itself, makes a dramatic difference in how often the programmable features are used.

An Internet-connected thermostat also allows people to remotely control home heating and cooling. Being able to adjust home temperature from the office or commute, for example, appears to be … Read more

Nissan Leaf batteries seek second life as home storage

Perhaps you'd be more willing to buy an electric car if you knew that you could sell those pricey batteries down the road.

Nissan and electric power company ABB yesterday announced a partnership to test the technical and commercial feasibility of repurposing used EV batteries for energy storage on the grid and in homes. ABB will work with a joint venture called 4R Energy (for reuse, refabricate, resell, recycle) created by Nissan North America and industrial conglomerate Suminoto to research secondary uses of EV batteries.

The partnership intends to make a prototype stationary lithium ion battery system with at … Read more

Cheap zinc air battery promises beefier power grid

Eos Energy Storage is developing a zinc air battery it claims will be able to clear up bottlenecks on the power grid by placing them at office buildings and shopping malls.

The energy storage startup before the end of March plans to close a round of funding from corporate partners which is expected to be at least $5.5 million. It plans to raise $20 million by the end of this year and start making its batteries at a pilot manufacturing facility next year, said President Steve Hellman.

Although it doesn't have a product on the market yet, Eos … Read more

Power-wasting battery chargers to go on energy diet

Most battery chargers today are like leaky faucets dripping out a tiny flow of electricity even when not charging your electronic gadget.

The California Energy Commission yesterday voted in favor of efficiency standards aimed at cutting wasted energy from battery chargers for small electronics, including cell phones and electric toothbrushes, to larger battery-powered machines such as power tools and forklifts.

Once enacted, the measures should improve the efficiency of chargers by at least 40 percent and save over $300 million a year in utility costs, according to the Commission. The energy savings would be about 2,200 gigawatt hours per … Read more

Green Car Journal announces five finalists for 2012 award

Green Car Journal announced five finalists for the publication's annual Green Car Vision Award. The award recognizes innovations in fuel efficiency, low emissions, alternative fuels, or electric power.

To be considered for the Green Car Vision Award, vehicles must be in demonstration on public highways today or nearing commercialization but not yet widely available to consumers, Green Car Journal said in a press release.

The five finalists include the BMW i3, the Cadillac ELR, the Ford's C-MAX Energi, the Mercedes-Benz B-Class F-Cell, and the Tesla Model S.

The 2012 Green Car Vision Award winner will be announced at … Read more

New lead-acid battery angles for micro hybrids

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

Lowe's muscles into smart home

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

Assess your environmental impact with Carbon Footprint Calculator

Your carbon footprint is a measure of the amount of carbon dioxide that you produce through such activities as traveling, using electricity, consuming food, and other aspects of daily life. Carbon Footprint Calculator is a simple program that can help you calculate your carbon footprint and identify areas where you might be able to reduce your output.

The program's interface is simple and easy to navigate, consisting of only one screen with a variety of simple questions about your daily activities. There's a transportation section, an energy section, a recycling and activities section, and a food section. Some … Read more

Ford focuses on a more energy-efficient future (video)

Ford Motor has set a goal to have hybrids and electric vehicles make up 10 percent to 25 percent of its fleet by 2020.

SmartPlanet correspondent Sumi Das talked to Ford executive Dan Kapp recently about the company's alternative-fuels strategy and one of its first electric vehicles to hit the market in 2012, the Ford Focus Electric.

This video originally appeared on SmartPlanet with the headline "Ford driving into the future with energy-efficient autos."

A solar hot water collector that makes electricity, too

Startup GMZ Energy thinks solar hot water panels can pull double duty.

The company today announced it raised $14 million in series C funding to commercialize a product that will draw electricity from solar hot water collectors. It will also make small chips able to convert heat from car exhaust pipes and industrial machines into electricity.

GMZ Energy, which was spun out of the Massachusetts Institute of Technology and Boston College in 2008, has created an improved material for converting the energy in heat into electric power. The process works in reverse so an electric current will produce heat.

Thermoelectric … Read more