Research on Powering the US with Renewables Now

“You could power America with renewables from a technical and economic standpoint. The biggest obstacles are social and political — what you need is the will to do it.” said Mark Z. Jacobson,[...]

Our first duct blaster (blower door) reading at Country PH

Our initial duct blaster test for monitoring the air tightness of the building envelope was very good. The closed shell read at 0.18 ACH (air changes an hour) @ 50 Pascals (of[...]

Data Loggers

We are installing data loggers into the walls of the passive homes we are currently building. Originally designed to monitor building moisture and temperature problems as a precaution for future problems.  Micro-electronic[...]

Top Ten USA

The goal of TopTen USA, a nonprofit organization, is to help consumers choose the most energy efficient models of common household products.  Their mission: “transform the American market from the one of[...]

Residential Solar Is Easier and Cheaper to Install in Germany than the U.S.

The savings aren’t the panels themselves. Those costs are comparable. The difference comes almost entirely in “soft costs” — customer acquisition, labor, interconnection to the grid, and licensing.  When it comes to[...]

Payback Calculations

Easy to use payback calculator. The cost of installing Residential PV systems now cost about $4.50 a watt, down from $8.00 a watt a year ago. This link will get you to[...]

Wick DER Meets Thousand Home Challenge

The Wick Deep Energy Retrofit is the 16th home to meet the Thousand Home Challenge. They achieved more than a 75% site energy reduction from their Nov 09-Nov 10 baseline of 39,348[...]

Radon Abatement

Radon is a colorless, odorless, radioactive gas.  According to the EPA:  Radon comes from the natural (radioactive) breakdown of uranium in soil, rock and water and gets into the air you breathe.[...]


All materials at the Savoy house are being tested for toxicity.  Commonly used rigid foam boards such as extruded polystyrene (XPS) and expanded polystyrene (EPS) are made with flame-retardants; XPS owes its light weight to[...]

Empire State Building energy retrofit

This is the Empire State Building website’s page about their retrofit. There are many interesting links and facts posted here. I have enjoyed reading many of the pages related to and connected[...]