Iain Stewart visits the National Grid to see how they use hydro-electricity to balance the electricity supply during peak periods to ensure energy security.
You know, the thing about the fracking chemicals is that, in America, they’re proprietary, so that they’re a closely guarded secret, each company with their own particular mix that they don’t want the others to know about, so it’s likely secret recipe, really, like the ingredients of HP Sauce or Coca-Cola.