Long term performance measurement of GSHP Systems serving commercial, institutional and multi-family buildings

Measured long-term performance data for ground source heat pump systems serving commercial, institutional and multi-family buildings are rarely reported in the literature. Energy use intensity figures are occasionally published, but as they necessarily lump the building loads and the system performance together, they are of limited usefulness in understanding real-world system performance.

Annex 52 will focus on surveys and creation of a library of quality long-term measurements of GSHP system performance for commercial and institutional buildings. It will also refine and extend current methodology to better characterize GSHP system performance serving commercial and institutional buildings with the full range of features shown on the market. The annex will provide a set of benchmarks for comparisons of such GSHP systems around the world.

Annex 52 will bridge the gap between those who see the heat pump system as a complex environment and the ground source as a black box, and those who see the ground source as a complex environment and the heat pump system as a black box.