As always, the discussion will continue...
The first level consideration of the public has been "Why should we support that wastefulness of keeping the useless Royals?" This solution at least takes the "waste" out of the picture.
But beware, Royals! Next, with that question out of the way, we will quickly go down to "Why should the useless Royals now have these excellent devices to power their own lifestyles, when the public at large is denied them?"
As always, of course, we could view the endless descent of arguments as a reflection of how the public is "never satisfied" with ANY degree of accommodation to their whims.
But I suggest we take a different view of such public discussions. I say we think of them AS discussions, in which the resolution of one issue MAKES WAY FOR a further evolution of the discussion. In this case, the adoption by the Royals (and THANK YOU, Royals) LET'S the discussion evolve to the perfectly appropriate next step, that of extending such non-polluting energy to others -- whoever in the country is capable of using such resources.
This view lets us diffuse the anti-anti meme for viewing discussions, which may in turn let us sooner consider which ways to go next.