Siemens

Businesses which rely on continuing public subsidies or particular formulations of public policy always carry added risk. The reality is that public policy changes. For a brief period there is full-hearted support, often driven by a crisis or a sense of looming danger. But the attention span of electorates and policy makers is short. Something else happens, another crisis looms and a new priority takes precedence.

The news last week that Siemens is to close its solar business is just one of many indications that for the renewables sector times have changed.