Solar Funded Museum Display Building

In 2010 the then Labour Government introduced Feed-in-Tariffs for renewable sources of energy, which included PV solar panels. The tariffs available then were considerably generous.  With a number of aviation museums in need of covered display space, but limited funds, this idea was to finance suitable structures using the income from a solar roof or canopy.  While these tariffs have largely been phased out, it still might be possible to finance such a project, if the electricity generated was sold directly to an end user, like an adjacent airport. The problem with Solar PV is that suppliers dictate prices based on the output of the energy generated, and not on the true cost of the equipment and installation.  This proposal would need to be take into account the cost of the actual structure, which would have to be financed through the lifetime of the solar panels.