US transformers are ageing. Renewable energy could make things worse, China study finds

As US President Donald Trump continues to wage war against renewable energy, a new Chinese study revealing the strain that renewable integration places on power transformers could give him fresh technical ammunition. The researchers discovered that high renewable energy integration could make power transformers, vital components that regulate voltage in electricity grids, age faster than previously thought. High levels of wind and solar energy increased bidirectional power flow switching – the...