environmental upgrade begins
The start of work on a project intended to improve a structure's energy efficiency.
The beginning of an environmental upgrade occurs when work commences on any project designed to increase the energy efficiency of a structure, whether that entails installation of alternative power supplies, improved insulation or windows, conversion to more efficient heating and cooling systems, or other such steps.
The project's objective is improved energy efficiency, and its methods can involve power supply, insulation, or building systems. The category is not confined to one type of equipment.
Conversion to passive heating has a more specific outcome. An environmental upgrade can begin without aiming to remove the need for active heat generation.
