And it is undeniable that the cheapest and most reliable forms of energy, for now, are fossil fuels. (austinchronicle.com)
In actual fact the constantly changing weather becomes the most significant new feature, with visibility proving highly variable and boats becoming the most reliable form of transport. (metro.co.uk)
Because wind power can never be completely reliable, we will always need other, more reliable forms of energy to serve as a backup for «wind reliant» buildings and infrastructure. (climatism.blog)