I released Windpower on June 7, 2005. At the time, I was living near Niagara Falls and experimenting with renewable energy ideas, which influenced the name. The design itself was a sans serif derived from my earlier typeface Affluent. It was originally released as a paid font.
In 2021, I updated Windpower. I removed obsolete characters, such as outdated accented forms, and added support for extended fractions so the font could handle long numerators and denominators. I also introduced a set of winged numerals to match the winged capitals already in the design. Beyond those additions, the structure of the font remained the same. On November 2022, I placed Windpower in the public domain. It has not seen notable use, but it reflects a period when I was experimenting with extensions of my existing designs.