Time to take stock over wind turbine installations

The present situation with wind turbines needs assessment. Their installation by the many thousands across the world and the thousands in the UK in particular as a result of Ed Milliband signing us up to the dictates of the EU when he was energy secretary in the last Labour Government would imply that they are controversially rationale or that the industry producing them could do no better by way of design etc.
Worrying factors are:
- They all produce electricity which cannot be stored.
- The carbon footprint for their manufacture, installation and upkeep is not known or is not revealed.
- Their power contribution and the cost of their contribution from installation to the present and prospectively individually and collectively is not known or is not revealed.
-They don't work all the time and when they do it is at the behest of the weather and their potential contribution to the grid needs is unreliable.
- They need backup from other sources to cope with this unreliability from other grid sources of power.
- The conventional back-up sources are being run down or are not unequivocally known to cope.
- Their presence in the UK is mostly in the hands of foreign investment.
- Their is little or no contribution to their manufacture by the UK.
- Contractual arrangements mean owners of wind turbines are paid to shut them down to prevent grid over load so reflecting poor distribution of their output.
- It is almost certain that the increasing size of turbine size will conflict with the changing wind patterns as the slot of wind spectrum to start and stop them narrow.
- They all produce electricity which cannot be stored.
- Materials for their manufacture are increasingly in short supply and that their costs will rise.
- Their presence spoils a spectrum of naturally beautiful landscapes.