Our geothermal system is up and running. It was a big project but should last a long time.

Installing a geothermal system in our home (part 2).

Our furnace is getting old. Time to replace it with geothermal!

Fueling your Hummer with biofuels will not save the planet.

If solar is ever going to be cheaper than grid power, the cost to install a new system is going to have to come down. A lot.

There’s a lot of hype about new energy sources. Here’s the questions you should ask about alternative energy sources to help figure out if it’s going to save the world or not.

There’s a lot of solar technologies being developed which have the potential to disrupt the market.

A difference in degree, if large enough, can become a difference in kind.

Solar power is getting cheaper. How soon will it be cheaper than the grid?

Free, clean, and nearly limitless energy has been discovered! And it’s coming soon to a neighborhood near you!

Charge an EV in five minutes? Sure, but have you thought about what that actually means?

We saved over $1,000 this winter by heating with firewood.

The price of different forms of energy varies wildly, but even though we often talk about “energy” as though it’s all the same thing, the fact is that fuel is not fungible. The form of the energy matters.

Would it be possible to harness the energy of warm water in the Gulf of Mexico to generate power?

We’ve made the decision to heat our home with firewood.

Wood heat looks like it might be a practical way to heat our home, and save a significant amount of money to boot.

There’s a lot of energy pent up in the warm water of the Gulf of Mexico. Anyone got ideas on how to get it out?

How long before I can tank up the buggy with a 25-lb bag of sugar from Costco?