It's not the fuel that costs more since that's almost free. It's the cost to build the equipment such as the wind turbines or solar panels that cost more. Natural gas, coal and oil are cheap and in most cases, the power plants that generate the electricity are already paid for. The more manufacturers pay for their electricity, the more their products like computers, or clothes or food costs. People are beginning to realize that it's important to consider environmental issues when generating electricity.
Many states get some of the electricity from renewables.
There's also more rules that make factories and power plants reduce the pollutants that would be put into the air. Transportation would stop, there would be little electricity. You can imagine what a nightmare it would be. Of course, people lived and worked before there was electricity and oil to power cars and trucks. We could survive but it would be a HUGE mess in the meantime.