- A wireless lighting control system that reduces wiring demands;
- Addition of storm windows with solar control film;
- Removal of a drop ceiling, which previously blocked daylighting from some of the upper windows; and
- A rooftop photovoltaic array that is set back far enough so that it is not visible when looking at the principal façade.
What other strategies can help achieve the balance of historic preservation and energy efficiency? What are common obstacles for these types of projects and how can they be overcome?