On the contrary, the development of electric energy greatly improved the quality of life of people, who came to own appliances and light at home. In today's world, large centers are ravenous energy consumers. Appliances for air conditioning, TV, internet, all this demands electric power. These are consumer goods considered essential today and are related to increased comfort and quality of life.
In precarious places, with few resources there is not a great demand of energy.
I think is the second one, two countries impose tariffs on each others products because a trade war is an economic conflict resulting from extreme protectionism in which states raise or create tariffs or other trade barriers against each other.