OLPC: one (low-power) laptop per child

One Laptop per Child

For almost two years I worked for One Laptop per Child – a non-profit organization building and delivering very robust, low-power, wirelessly connected laptops to children in developing countries. It is truely heart-warming to see and hear the stories of how these learning tools have affected individuals, schools and whole communities. [...]

Case Study – Insulate my bedroom, please!

For one more week I am staying with my parents in their beautiful house on Mascoma Lake in Enfield, NH. The bedroom looks out over the lake with sliding glass doors. What a view!

But it was really cold in the bedroom the other day … It was 5F degrees outside; so I decided to see [...]

Measuring energy usage: Kill-A-Watt

For most of us knowing how much energy we’re using is the first step towards any program to reduce or conserve energy. There are more and more products coming out to address the measuring side of energy usage — and some of these are affordable!

I got a Kill-A-Watt meter recently and have had a lot [...]

Tax credits and incentives for energy efficiencies

I’ve just started a study of the numerous incentives, grants, tax credits, and rebates that are available at the federal, state, and local level for alternative and energy efficient products. I expect with the new administration in Washington this should get even more exciting over the next few years.

To get started, you might try this [...]

What we can build – Alternative Energy Products

Barak Obama

Barak Obama:
“To those leaders around the globe who seek to sow conflict, or blame their society’s ills on the West — know that your people will judge you on what you can build, not what you destroy.”

This is my favorite quote from the inauguration speech yesterday. Obama has pledged to put emphasis on [...]

Alternative energy watches … back in style

sundial

Clocks and watches have been around for hundreds of years now and they didn’t originally depend on electricity to run! So it makes sense that there quite a few ways to run one without plugging it into a wall or using batteries. The first time pieces were powered by the sun, sand or by [...]

Environmentally friendly roadside assistance

Since I started blogging I’ve gotten quite a few interesting links forwarded to me from readers. One of them was particularly timely — a roadside assistance program. Both my car and my husband’s car have gone past that 70,000 mile mark, and we’ve paid off the loans, and there is more of a chance that [...]

Case Study – basement insulation

My father-in-law has recently added significant insulation to his basement windows and bulkhead. He created some great ways to plug the holes using bubble wrap and insulation in ways that also make it easy to install for the winter and store them away for the warm months.

He provided me with data from his oil bill, [...]

Getting started in Solar

Many people think of ‘going solar’ as requiring a large investment, specialty installation, equipment on your roof and calculating the years required for payback.

But there is a way to get started on a lot smaller budget as soon as possible.

If you think about all the things you use every day that require electricity, and then [...]

Degree Day

If the outside temperature is 30 degrees F, and your thermostat inside is set to 68 F, than how much  work did you heating system do and how much did you just pay for that days heat?

A “Degree Day” (DD) is the term used in energy performance measurements to describe the number of degrees your [...]