I was interested in Azure but went off that as an investment 'cos they are also listed in Canada so not entitled to business assets tax relief. While looking at Azure's website, I got the impression that they had four major projects on the go and they wanted to cut other work 'cos they couldn't do everything.
So my impression was that maybe Azure wanted to pull out of the work with Tanfield - but Tanfield say that the Enova system is better - but they would say that, wouldn't they if the change of supplier was forced on them.
Azure's main projects are HEVs - hybrid electric vehicles used for suburban work - buses and postal vehicles - they use a low power diesel engine running at optimum speed to keep the battery charged - the diesel can provide some booster power when required on hills, for example.
The fuel consumption (and exhaust emissions) are about half of that of a normal diesel-powered vehicle on stop-start suburban work. They have over 2,500,000 miles experience with their vehicles.