Renew Extra Weekly

  Solar farms are spreading across the UK- and elsewhere. One reason is that installing large solar arrays on land is cheaper/MW than installing a few cells on roof tops.  But it means there is less room for food growing. And that has become a politically contentious issue. However, it’s possible to limit the problem by adjusting solar array layouts e.g. putting the cells on supports to allow plants to grow or animals to graze underneath- the so called agrisolar approach.  It’s also possible to use waste land or warehouse roofs. But so far it seems that most large solar projects around the UK, supplying over 5% of UK power, are using prime agricultural land - with some farmers evidently finding it more profitable to rent fields out to solar developers than to grow food or fodder, or farm livestock. Some local people cynically say it’s a way to keep housing developers at bay. But some others object.  It’s not all bad news though. Solar farms can enhance wild life flor...

 The climate issue suggests that we need to expand renewable energy and energy saving as fast as possible, so as to cut carbon emissions. However, given how things are going internationally, the defence sector may be expanded instead- it is being presented increasingly as being urgent for national survival.  For some that is very worrying- especially given that more money (£15bn in the UK) is also being allocated for nuclear weapons development. What sort of survival might that lead to, if the worst come to the worst and deterrence doesn’t work?  While not necessarily wanting to dispense with defence or the military, not everyone is in agreement with the rush to build more weapons. Though there may be exceptions, given a choice, most people in industry would no doubt prefer to work on something that adds value to life rather than destroys it.  So it is interesting to see that the UK Trades Union Congress this year decided to back a ‘Wages not Weapons’ motion.  T...

 The annual World Nuclear Industry Status Report as usual looks in great detail at the state of play for nuclear, mostly still not doing too well, compared with renewables, mostly doing better, with the report looking extensively at that as well as the ups and downs of nuclear. The renewable challenge is after all very striking: for example, global solar electricity generation has increased by about 28%, with costs continuing to fall. And crucially, in April 2025, renewables exceeded nuclear power generation globally for the first time.  However, although construction costs and delays remain a big problem, the nuclear story is not entirely negative. Given reactor start-ups and closures in 2024, nuclear added 5.3 GW net, while operating capacity increased by 2% and electricity output by 2.9%. But given the overall growth of electricity use, the nuclear share of global power has fallen to 9%. Whereas renewables are expanding overall. And that is despite some recent financial pr...