In the Bay Area I often see commercial buildings where the lights and air circulation all shut down at 6:00PM. This while I'm trying to install/program/reprogram someone's phone system. Positively infuriating precisely because it attempts to compensate for one type of idiocy (waste) with another (schedule-coersion), rather than doing something intelligent instead.
The reason you get wasteful commercial buildings, is that the energy costs are passed along by the owners into the rents paid by tenants, and this is usually a "hidden cost" until a tenant starts getting their utility bills and discovers they can't do anything about it. In essence it's a shell-game of cost-fraud passed along to the tenants.
There is a simple enough way to deal with this, which is libertarian-acceptable:
Require building owners to publish the energy cost of heating/cooling per unit of space (e.g. on some standard unit of space, such as per thousand square feet), to some standard temperature (for example 70 degrees). This is not a case of onerous regulation, but rather, full disclosure: "This is what it's *really* going to cost you to have an office in this building." Once that's done, market forces will kick in and force rents down in wasteful buildings, producing an incentive to owners to upgrade their properties accordingly. Problem solved.