The New York project was much more complicated. The parking garage in the image below is semi-circular, and the elevation of grade changes by almost 30 feet from one end to the other. Since all of the structures are the same height above ground (for vehicle clearance), the top of the southern structure is 20 feet below the top of the garage parapet, and the northern structure is 10 feet above the parapet. Also, the garage may look like a semi-circle … but when engineering and constructing carport structures that need to be exactly the same distance from the concrete wall all the way around, it isn’t really a perfect half circle. Enough difference around that concrete arc that our detailed pre-survey was essential for the successful outcome of the project.
We are certified as a Commercial and Industrial PV installer, through the New York State Energy Research and Development Authority (NYSERDA), and also have NY-licensed Professional Engineers (PE’s) on staff. We have been engineering and building PV in New York since 2013, so we are veterans in that market. NYSERDA incentives required those losses to be minimized and accurately modeled and certified. Because of the orientation of the garage, constructing the carports in this way resulted in only a very small loss of energy production. That was well within the limitations of the NYSERDA program.
The next biggest challenge of these projects was the limitation on staging area for the steel and PV equipment. Due to the high demand for parking, only a small part of the parking lot was available to be used at any time.