The Passive House low-energy building standard applies to non-residential as well as residential construction. Here’s a video in German about how to design a Passive House hospital: Energiekonzept eines Passivhaus-Krankenhauses.
The basic principles of a well-insulated building envelope, properly oriented high-performance windows, and a ventilation system with heat recovery apply to hospitals just as much as to other building types. Hospitals use a lot of energy for computers and medical equipment, so particular attention should be paid to selecting ones with the best energy efficiency. Finally rooftop solar photovoltaic (PV) arrays can provide renewable energy and an electric vehicle fleet’s batteries can be used to store surplus solar energy. PV is not required as part of the Passive House standard, but it can reduce the building’s carbon footprint.