> It's disappointing that we haven't figured out a better way to convert to electrical energy than what we were using in the 1800s. We haven't found a better w

> It's disappointing that we haven't figured out a better way to convert to electrical energy than what we were using in the 1800s. We haven't found a better way to convert heat to electrical energy. We've done great things with solar, kinetic, gravity, etc. I think the better analysis is to chart the efficiency of the conversion over time. I couldn't easily find a chart showing this, but I assume gigawatt scale turbines operating at 50%+ efficiency are modern engineering marvels compared to the earliest 7kW prototype made by Charles Parsons in 1884.