Like many other Oak Parkers, our family tries to live in an environmentally responsible way. We compost food waste, eat meat-free and organic, and drive electric cars. When we lived in a single-family house, we imagined installing solar panels on the roof, but it wasn't practical or, at the time, affordable. When we downsized into a condo, we faced the challenge of getting buy-in from our fellow owners to add a rooftop solar array, and the available space would have been too small to make much of a dent in our building’s electricity consumption.