For commercial and industrial users, LED is almost a requirement, because the payback is almost immediate. LEDs are 90 percent efficient, emit almost zero heat and have a lamp life of 15-20 years.
So, a store planner can reduce the electrical, the HVAC (less heat to remove) and way less maintenance for bulb replacement, which is handy given these are three of the largest store expenses.
But the article also said they are looking at the residential market, which is curious...as they are already there.
Basic premise to homeowners is similar to commercial, LED will save energy, AC and heat and will require zero maintenance...Although the initial costs are higher, the payback in just energy is a little over three years.