The "toys" are what would drive any new growth in the system and to make up for the extra heating needs in the winter months. If the island had a larger source

The "toys" are what would drive any new growth in the system and to make up for the extra heating needs in the winter months. If the island had a larger source of hydro or geothermal, this wouldn't be much of a story, but the single source by itself isn't enough to meet all of the needs or they wouldn't have bothered to put them in place.