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 if I could find where that outside air was getting in. I used my infrared thermometer to measure the temperature all around the sliding glass and found the spots where outside air was coming into the bedroom. I marked up this photo where the coldest points were:

Temps in the bedroom

Temps in the bedroom

Right where the sliders are joined when the door is completely shut, there was fresh (cold!) air at 7F coming into the room. Along the bottom slider there was also a significant amount of cold air at about 22F. Perhaps this was a manufacturing problem in that the doors bowed away from each other rather than sealing nicely.

My dad and I went to the local Home Depot and bought a variety of insulating materials. We probably spent $5-10 on insulation tape, poly-foam caulk saver, and pipe insulation. Here are some pictures of the installation:

Insulation tape on the floor

Insulation tape on the floor

Pipe insultation along the inside door

Pipe insulation along the inside door

Pipe Insulation to the floor

Pipe Insulation to the floor

Aha! Now I read 40-50F where the sliding doors join and 35-40F along the floor. It is clear that there is still some colder air getting in around the joint of the bottom of the door to the floor… but this was a great improvement for about $5! Standard door draft snakes can help with the floor.

Now the bedroom is cozy and warm… next project are the other 5 sliding glass doors in the house!

Playroom has 4 more sliding doors!

Playroom has 4 more sliding doors -- piece of cake!

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 of fun comparing the electrical usage of my toaster to my hot water tea pot to my MacBook Pro. You plug it into a wall outlet, then plug the device that you want to measure into it. You can read Watts, Amps, and Volts over time.

I was surprised to learn the range of power for different computers. A souped up gaming desktop computer can consume 200-300 Watts; a typical business laptop is more like 40-60 Watts; a power saving laptop can get down to 25 Watts; and the OLPC (One Laptop per Child), designed for use in the least developed countries, averages only about 4 Watts (more on that laptop in a future blog).

Understanding electrical usage is the first step to shutting things off, making intelligent decisions about retiring older equipment or buying new. I imagine more and more people will spend a little time reading energy usage labels just as they read the nutrition labels today.

The big difference between the 4400 Kill-A-Watt and the 4460 is that the 4460 device saves your data when you unplug it. With the 4400, you need to get your data readings off of it before unplugging it.

In both devices there is no back light on the LCD panel, so if you plugged it directly into a wall socket a few feet off the ground in a dark corner, you may need a flashlight to read it. You might want to use a small extension cord to bring the Kill-A-Watt closer to you for reading measurements.

The Kill-A-Watt can measure electrical usage for one device at a time. I’m starting to keep a list of common electrical equipment and typical energy use. I’m hoping to get that into a form that can be easily displayed and readers who are measuring their own products can add to it.

Another electrical monitor I have started working with can measure the whole house electrical usage (upcoming blog on TED, The Energy Detective). Since you can’t easily plug your furnace or dryer into the Kill-A-Watt, the whole house monitor can help isolate the electricity used by these larger pieces of equipment.

With these products (or others like them) you can really start to get control over costs associated with your electric bill. If you are measuring your electrical consumption, send me an email and I’ll post a list of household items and their energy footprint: kim at

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 website which has links to both federal and state programs. Start by choosing your state:

You do have to read some of the details to understand the type of incentive, the qualifications and the limitations. Part of my service to the Enfield, NH community when I open the Energy Emporium store will be to point people to the incentives that apply to them and help them get through the process.

As an example of what is available from the federal government as well as for residents of NH, I have listed some of the incentives below.


Residential renewable tax credit – up to 30% of the project with caps for each kind of renewable. The residence must be the primary residence of the taxpayer. This tax credit was recently extended beyond solar systems to include geo-thermal and wind. Definitely look it up!

There is a similar business energy tax credit that provides 30% for solar, fuel cells, and wind renewables, and a smaller credit (up to 10%) for microturbines and geo-thermal.

Residential energy efficient tax credit – up to $500 for certain energy efficient improvements made in 2009 to a primary residence.

Personal exemption incentive –Energy conservation subsidies are non-taxable.

Also, don’t miss the Energy Star website to get more information on the US Department of Energy’s rating systems, products, energy audits and related information.

New Hampshire:

Renewable energy rebate (solar water, voltaics, wind) – $3 per Watt up to $6000 or 50% of cost of system, available in July 2009. This is the one everyone is talking about… be sure to look it up!

Property tax exemption for the cost of a renewable energy systems (has to be voted in town by town). Property tax should not increase due to upgrades in heating systems.

Low Income Energy Assistance – Grant program up to $3600 for increasing the efficiency of home or appliances. Need to meet income guidelines.

Utility Rebate programs – these come from the specific utility company that you are using and sometimes include a free energy audit of your home. Some examples are rebates for upgrading lights, improving insulation, upgrading appliances. Use the DSIRE link to find your utility company’s links.

For the Leviston House project (retail space on the first floor, two apartments on the 2nd and 3rd floors), we will look into some of the small business incentives such as the Solar Thermal Rebate program for multi-family houses and the Small Business Energy Efficiency programs which offer both grants and 0% interest loans.

What we can build – Alternative Energy Products

Barak Obama

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 systems. He wants to help create 3 million jobs and expects many of them to be in the field of products and services that will help save the environment.

I hope we are all judged by what we build and what we add to this world, and that America can become a leader in alternative energy products and services.

Here are some interesting links of alternative energy websites. Send me your best picks so I can start a blog roll: – Driving sustainability ideas, products, information – Environmental news and information – Environmental news and humor – What sustainability means to you – Green auto industry – Alternative Energy solutions – Retail stores for alternative energy and sustainable products – Carbon footprint – Carbon footprint – Promoting sustainable lifestyles – Save energy, money and the environment – Green building – Diminishing fossil fuels; increase sustainability

Alternative energy watches … back in style



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 water.

I love the mechanism of the grandfather clock using gravity and weights to keep time moving forward.


grandfather clock



Mechanical springs have been a good way to power watches for centuries.

I inherited a clock from my grandfather that runs on change in barometric pressure. It sits under glass and should not be moved at all in order to keep its accuracy.

potato clock

potato clock

And then there’s the potato clock.

As a kid I was very excited to receive an ‘automatic’ watch with no battery. It was a self-winding watch that kept running simply by wearing it. I do remember shaking my wrist from time to time just to hear it wind.

I had that watch for many, many years. Then the next 20 years I had many, many watches with batteries. For the most part, the work required to replace the battery generally wasn’t worth keeping the watch running.

About 2 years ago my father, who is always looking for alternative energy products, found a new series of watches that are run on solar power using photovoltaics on the surface of the face. Between this technology and the self-winding watches, which have now become popular again, you can get a watch that doesn’t need batteries! I highly recommend it!

Search for ‘eco-drive’, ‘solar watches’, or ‘self-winding watch’ to find them. Here is a link to my watch:
Citizen Women’s Eco-Drive Sport Watch #EW3144-51A