the way I see it, the only way for prices to get driven down further is via economies of scale, and if the overall market isn't going to grow, then the only way this can be achieved is via 'consolidation' ie less companies so higher market share per company remaining.
IMO the policies that have lead to this situation should actually be illegal as DECC is only empowered via the energy act to enact policies that increase the overall market for micro generation, and any policies that resulted in a drop in the size of the market ought to have required new legislation and a parliamentary vote.
If things don't pick up, I could see there could be grounds for a class action against decc for essentially misleading thousands of businesses into spending tens of thousands on getting in to the renewables sector only to have the promised work pulled from under them by unlawful actions from DECC.
Too busy trying to get the work in for before the August cut at the minute to consider this in any detail, but I'm fairly sure there's a potential case here.