Has anyone got any ideas why VLR continues to fall? They are one of the few Fuel cell company to have actually successfully comercialised their product and the potential for future growth is huge.

It's a great shame when a company fails - they had a good idea and created much publicity. However, the reality was that few customers wanted to generate very expensive electricity. Maybe the product needed some more "research funding" before being let-loose on the Market.
I have only a notional holding.

maybe it was deliberately scuppered...