"Not everyone can afford these things because they require some upfront investment,” he says.
What should you do first? They are much more efficient than old-style electric and gas water heaters and can cost very little to run when drawing power during the day from a home’s solar panels, which Jolley and Besley installed next, aided by a government interest-free loan (more on that later).
In this case, besides the cost/renewables, it’s a health reason. There was some recent studies showing that gas burning inside the home is not particularly good for you.
Sure, it might move some of the pollution to a coal plant but it’s not directly in your home where you are breathing.