Welcome to Tim Graettinger's Website

Exploring my world thru the lens of data. Check out my latest work below.

Latest Articles

Tim Graettinger

Four Questions Our Solar Charts Help Us Answer

Every week I update a series of charts that help my wife and me monitor the health and performance of our solar panels. Each visual answers a different question, and together they've changed how we think about our system. Find out what those questions are and what insights we've gained. Read more...

Tim Graettinger

4 Years, 100 MWh of Solar Power... in Pittsburgh?

100 MWh of solar power in four years ... in Pittsburgh? Who'd a thunk it? But after tracking every day of production during that time, I finally stepped back and asked: What does that number actually mean? Turns out, the stories behind it might be more interesting than the milestone. Read more...

Tim Graettinger

How Fast Does a House Get Cold When the Power Goes Out?

If you lose power in cold weather, you might double your stay-at-home time window by retreating to your basement. If you think an outage is likely, pre-heating can buy you a lot more time, too. See how I broke down our data from a recent outage. Read more...