Is your home R-Rated?

The accepted wisdom is at least 50% of the energy used in our homes is for heating and cooling. That is particularly true for residents in the North-East Corridor and the Midwest, who routinely shiver through winter and swelter throughout the summer months.

The Department of Energy says every house has an R-value, which is your home’s built-in effectiveness at retaining the heat generated within your home. They have even provided a calculator that recommends various  insulation improvements to reduce the effect of climatic changes outside your four walls.

Warm Home Cool Planet input their data and found the results…  a little confusing. Try it yourself though.

To find out more about R-values, you’ll find this explanation enlightening. Particularly the part  explaining why simply putting more insulation in your walls won’t cut your energy bills by 50%.

For those Warm Home Cool Planet readers who passed high-school physics, this Wikipedia stub on thermal resistance makes useful reading before starting an energy-efficient renovation.

Please Standby for Energy Savings…

Or rather, don’t stand by.

By now you’ve read a bunch of articles about how the ‘standby’ or ‘instant on’ mode wastes energy and costs money. But if you’re like us, you may not have turned this information into a set of buying decisions and habits to save energy. This phantom power consumption chart is perhaps more than you needed to know, but it gets at the underlying reality that up to 10% of the US electrical bill may be wasted on phantom powering our gadget cornucopia. 

As the Lawrence Berkely National Laboratory puts it;

Limited research suggests that an informed and aggressive approach can reduce standby use by about 30%. Frankly, there are more productive ways to save energy with an investment of an hour but if high standby energy use stands between you and the goal of a zero energy home, then it’s an hour well spent.

Powering down your computer with a smart power strip which also turns off all the stuff attached to your computer can have a substantial impact. Great idea if you’re the type that turns your computer off.

Shifting from desktop to laptop computers is another idea. Laptops have been built with energy consumption in mind in order to extend battery life. For the first time in history last month laptop sales exceeded desktop sales, so maybe some people are getting with the program.

Obviously appliances need to be redesigned green from the ground up.

There’s no way anyone (myself included) is going to re-set the clock on their Sony Bravia flatscreen TV every time they turn the set on. Try to console yourself with the thought that the Sony’s Energy Star rating implies that it’s phantom power draw is relatively minor. (I’m trying to.)

Even though the blinking 12:00 LED clock mocks us as we retrofit our appliances for a reality their designers never considered, we persevere—saving money and energy in the process.

OK Computer… now go to sleep.

In a pilot study conducted by Verizon, the company found that Windows “sleep” features can actually cut energy costs by $65 per computer, annually.
Geez, you’d think Microsoft would have enough $$$ to do their own study.
Anyway, here’s the skinny on how much the communications giant is saving by having their PC monitors go zzzzzzzz… when no one is looking at them.
Hey Monitor, you're getting sleepy... very, very sleepy

Hey Monitor, you're getting sleepy... very, very sleepy

Your mileage may vary, but we suggest you check the sleep function is working properly on your own PC or laptop.

Zipcar-wheels when you want them

Occasionally we like to give a shout out to our neighbors in Cambridge doing the right thing by the community and the environment. Zipcar, who rent cars by the hour or day, definitely fits into that category. Here’s where Zipcar explains why using one of their vehicles for your transportation around town is much better for the environment than owning your own car–you’ll probably find it’s cheaper too. If you’re not into the whole reading thing, the graphic below explains how the Zipcar works. The only thing to add is that Zipcar does expect the car back at some point…

zipcar

Unlike Hertz, Avis and all the other car rental companies, Zipcar’s policy is to locate cars in the neighborhoods where their customers live, which cuts down on transportation costs to your Zipcar.

Find out if there’s a Zipcar near you.

Super insulated house in Arlington, MA

It started with a small water stain on the dining room ceiling that nagged at Alex Cheimets.

By the time he finished fixing the leak, his house was clad in insulation so thick he needed special 10 inch screws just to attach it to the siding. And the MA State Government had signed on a sponsor for his $100,000 home improvement project.

Super Insulated House has attracted an iimpressive group of sponsors.

The Super Insulated House in Arlington, MA has attracted an impressive group of sponsors.

Part of the state’s payoff will come after the work is done. Sensors will measure humidity and help track heat loss. A blower test with a giant fan will see just how tight the home is sealed. An oil tank sensor will track oil use at different indoor and outdoor temperatures.

Cut Home Energy Use. Get a mortgage interest rate cut.

But what if there was a government incentive to make energy improvements that would make a significant dent in your mortgage payment along with that less-detectible cut in your utility bill? Would you then make those improvements? What if the government bought down your mortgage at a proportion relative to the level of energy improvements made on your house? Would that make you get up on a ladder and caulk around a window,or  buy a new air conditioning system? You’d certainly be more likely to.

Sounds like an economic stimulus plan (of sorts), one that is the central theme of the Architecture 2030 Challenge Stimulus Plan.  From their press release:

“ The mortgage buy-down would allow a homeowner to reduce their mortgage rate if they renovate and improve the energy efficiency of their home to meet one of the 2030 Challenge targets.”

The Challenge Stimulus Plan is sponsored by Architecture 2030, a  nonprofit research organization supported by organizations such as the US Conference of Mayors (USCM), Department of Energy (DOE), Environmental Protection Agency (EPA), US Green Building Council (USGBC), American Institute of Architects (AIA), American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE).

Making energy costs visible

DW_ConsumersAMI6

The Citizen Patriot newspaper in Jackson, Michigan ran a story yesterday about the new ‘smart’ meters Consumers Energy customers will start seeing in their homes. It’s actually a visual display panel that will allow their customers to see-and control–energy usage in their homes.

When prices peak, special thermostats could automatically dial down or shut off air conditioning. Lights, appliances and electronics could also be controlled through display panels or connections to home computers that show energy usage or notify customers of high energy costs.

Consumers Energy will be installing units in 6,000 homes over the next year. Sounds like a great program, and judging by the comments this article has attracted, Consumers Energy needs all the good PR they can get. Warm Home Cool Planet is happy to help!

Energy Prices Take a Breather

The drop in energy prices-at the pump and in the home-we saw in the last quarter of 2008 will likely stay with us through 2009 according to the US Department of Energy. Add that to the shaky economic outlook and that means  people will be less likely to undertake home repairs and improvements for the next 18 months.

Builders and handymen will be looking for work-and available. So there’s never been a better time to plan an energy efficient makeover for your house. Get it done before oil and gas prices start to rise in 2010.

Wireless Electricity is Green

Wireless Electricity (or the concept) has been around since 1890 when Nicholas Tesla built a 200 ft, 100,000 watt tower that sent 130 ft bolts into the sky and turned the grass blue. Now, thanks to MIT Asst. Professor and 2008 MacArthur Genius Grant Winner, Marin Soljacic, wireless electricity is close to reality. And it’s greener than you think:

But wireless technology is not only neater (say good-bye to the power-strip Medusa under your office desk), it’s cleaner. The EPA says Americans purchase a total of 3 billion disposable dry-cell batteries every year (part of a worldwide market of about 15 billion) and then throw 2.8 billion of them into landfills. Wireless systems are designed for rechargeable batteries that can be reused hundreds of times before they become trash. Continue reading