Louisiana home energy costs & incentives

The state's position is brief: implementation of both rebate programmes is in progress, check back for updates. No date, no eligibility detail, no application route.

Watch out for the Home Energy Loan Program. HELP was Louisiana's genuinely clever efficiency loan — the state funded half of it at a low rate so the blended rate beat the market — and it still appears high in search results with pages that read as though it is running. It concluded in December 2023. If you find it, you have found an archive, not an offer.

The utility side is in transition too. Entergy Louisiana's residential efficiency programmes were, at the time of checking, described as beginning to launch rather than open. So the usual advice on this site — when the state has nothing, go to your utility — needs a caveat in Louisiana: check the launch status before you build a quote around it.

Which leaves the physics, and in Louisiana the physics are unusually decisive. This is one of the hottest, most humid states in the country: cooling and moisture removal dominate the energy bill, and duct leakage into a hot attic is the single most common way that money escapes. An air conditioner correctly sized for a sealed, insulated house is a much better purchase than a bigger one bolted onto a leaky one — and the sizing conversation is free.

Be sceptical of oversizing in particular here. A unit sized for the worst hour of August will short-cycle for the rest of the year, and short cycles do not run long enough to pull humidity out of the air. In a humid climate that produces a house that is cold and still clammy — the classic sign of a system sold on capacity rather than designed for the building.