Energy efficiency

MILLAU, France--You first see it from miles away. And after an afternoon spent driving toward it and weeks of planning a visit here, it's fair to wonder if it will live up to expectations. And there it is. And it's awesome.

This is the Millau Viaduct, the world's tallest bridge, which spans the Tarn River and the Tarn Valley here, in the central-south region of France. At 1,025 feet tall, and 8,071 feet long, it is a stunning architectural and design feat. And it is beautiful to look at as well.

Opened in 2004 to … Read more

BLAGNAC, France--What would you do with nearly 6,000 square feet of private airplane?

That's the question I'm asking myself as I look up at what will soon be one of the largest private planes in the world--an Airbus A380 slated for an unknown buyer. Two full decks of luxury in the sky, right in front of me, and sadly, I won't get to see what it looks like.

But I do get to see how A380s are made. As part of Road Trip 2011, I've come here to Airbus' Jean-Luc Lagardere plant, just outside Toulouse, … Read more

Chip giant Intel procured over 1,493 gigawatt-hours of renewable energy in 2010.

That's according to a survey of over 1,000 companies that was conducted by Bloomberg New Energy Finance in conjunction with wind turbine giant Vestas Wind Systems.

The index developed from this new survey is called the Corporate Renewable Energy Index (CREX). (For a PDF of the white paper on the survey, click here.) For its inaugural release the CREX released rankings of companies based on the amount of renewable energy they procured both in 2009 and 2010.

For 2010, the top five companies with the largest renewable electricity procurement were: Intel, clothing retailer Kohl's, Hong Kong electric company CLP Holdings, supermarket chain Whole Foods Market, and the Dutch telecom Koninklijke KPN.

For 2009, the ranking was Deutsche Telekom, Intel, PepsiCo, BT Group, and clothing retailer Kohl's.

Keep in mind that no one is suggesting these companies are gleaning electricity directly from local solar or wind farms. While some companies do directly support renewable-energy projects, over 80 percent of the renewable electricity procured by the companies surveyed was purchased in the form of renewable electricity credits (RECs).

And while Intel procured the most renewable electricity in 2010 at over 1,493 gigawatt-hours, on a percentage basis it's actually Kohl's that wins. In 2010 the retailer purchased so many RECs, it statistically can say it garnered 100.4 percent of its energy from renewable sources.

In conjunction with the CREX, Vestas also had TNS/Gallup conduct a survey on wind energy procurement in particular.

When it comes to wind, Whole Foods tops the list. The supermarket chain gets 100 percent of its electricity from wind energy, followed by North American bank Toronto-Dominion Bank at 78 percent, and software giant Adobe Systems at 65 percent, according to the Global Consumer Wind Study 2011.

More statistics and rankings of companies by industry can be found in Appendix D (page 30) of the CREX white paper (PDF) released by Bloomberg New Energy Finance and Vestas.… Read more

The maker of the PowerCost Monitor, seeking alternatives to discontinued energy-monitoring applications from Microsoft and Google, today said that its home electricity monitor will work with People Power's software.

People Power's Android and iPhone app, which is available this month, brings a few more features to the PowerCost Monitor's real-time electricity reading, including the ability to set up a monthly energy budget, get energy efficiency recommendations, and compare electricity use to others. It can also get electricity rate data from utilities which have variable prices based on the time of day.

Over the past few weeks, Microsoft and Google attracted interest to home energy technology by announcing plans to retire their respective applications, Google PowerMeter and Microsoft Hohm. Both companies said they didn't get the customer uptake they were hoping for.

Utilities are one channel for bringing energy monitoring to market but a handful of companies are selling directly to consumers with products that use home broadband connections, rather than a two-way smart meter, to get data online.

The deal between BlueLine Innovations, which makes the PowerCost Monitor, and People Power hinges on a Wi-Fi gateway that transmits electricity meter information over the Internet to People Power's application. BlueLine Innovations makes an optical sensor that attaches onto a meter to read data. It then sends data to a handheld device that shows near real-time electricity use and the Wi-Fi gateway. The monitor hardware and optical sensor, sold online or at Lowe's, cost about $100 and the Internet gateway costs an additional $159.

Another company that is using a gateway and home broadband to get data online is WattVision, which also makes an optical sensor and Wi-Fi gateway priced at $249. Consumers can view information through a Web application.

The idea behind real-time electricity monitoring is that people will get more insight into how they power their homes and find ways to conserve. In addition to finding ways to save money, people can simply get a better idea of energy usage before a monthly bill arrives.

Meter sensors with a Wi-Fi gateway are attractive to consumers who want more control over energy but don't have smart meters. To get more detailed energy usage, some energy monitors use sensors that clamp onto the individual circuits going into a circuit box. Another promising technology that will provide more detail are sensors that can recognize the electronic "signature" of large power consumers, such as large appliances or air conditioners. … Read more

MIT researchers have shown how solar panels can be printed on paper and other cheap materials, opening a range of possibilities including homes with solar-panel window shades or wallpaper.

Last year, CNET's Martin LaMonica reported on how MIT had developed the world's first solar panel printed on paper. A recent MIT study in the journal Advanced Materials by Karen Gleason and colleagues details the innovation.

The paper photovoltaic arrays are created through an oxidative chemical vapor deposition process at temperatures less than 120 degrees Celsius.

Ordinary uncoated paper, cloth, or plastic can be used. The researchers printed solar cells on a layer of PET plastic, folded it 1,000 times, and found it would still work.

Multiple layers and a paper mask are used to print the cells in a vacuum chamber. MIT says the procedure is nearly as cheap and easy as inkjet printing. … Read more

VENICE, Italy--Not far beyond this famous city, just at the border between the Venice Lagoon and the Adriatic Sea, a group of concrete behemoths is under construction. A lot of very smart people think they will be part of the solution that could save the island town from drowning.

The notion that Venice is sinking has been around for a long time, and in fact, it has lost 23 centimeters of land over the last 100 years. But these days, it faces a troika of what may be more insidious challenges: rising tides that each year bring more and more … Read more

Chicago-based Clean Urban Energy has raised $7 million in Series A funding, the company announced today.

The company has developed a software platform, and the monitoring and analytic services to go with it, that take advantage of a building's thermal mass and thermal-energy storage (TES) to make it run more efficiently and save on energy costs.

Clean Urban Energy says its software analytics platform can reduce the expense of a building's heating, ventilation, and air conditioning energy use by 15 percent to 30 percent.

"By aggregating and optimizing the thermal storage properties of multiple buildings, CUE unlocks … Read more

Say goodbye to those impromptu panic attacks when faced with blackouts or power surges affecting your servers at work.

Such interruptions in power will become obsolete as more commercial buildings, looking to actively manage energy consumption, invest in uninterruptible power supplies to protect computers and servers.

That's according the latest research report from Pike Research titled "Energy Storage in Commercial Buildings."

The uninterruptible power supply (UPS) industry includes any intermediary device used between the public grid and electronic devices being protected from interruptions like power failures, small surges, or brownouts.

UPS is poised to grow from a $… Read more

BRISTOL, England--Imagine being a wealthy traveler in the early 1840s and thinking about whether to buy a ticket aboard the brand-new SS Great Britain, an iron-hull giant of an ocean liner. It promised a speedy crossing from the U.K. to New York, but to your skeptical eyes, it probably also promised a speedy split in half and an agonizing drowning on the high seas.

That was the dynamic that awaited Isambard Kingdom Brunel's great new ship when it was launched in 1843 by England's Prince Albert. Brunel, a famous engineer responsible for, among other things, the Great … Read more