The ratio of active power to apparent power in a circuit is called the power factor. For two systems transmitting the same amount of active power, the system with the lower power factor will have higher circulating currents due to energy that returns to the source from energy storage in the load.
Ruud who invented the electric water heater (automatic storage) in 1889, founded the Ruud Manufacturing Company, which is still in operation today, and pioneered the advancement of water heaters, in both the residential and commercial market. The Water Heater is still sometimes referred to as a geyser in the UK.
There are at least a few different ways you can answer this question. That is because, as is the case with a lot of inventions, the first person who came up with any sort of steam engine is not the person who is most famous. The first person you can credit is Thomas Savery. He invented a crude steam engine in 1698. The next one is Thomas Newcomen. He and a partner built a steam engine in 1712 that was able to pump water up out of mines. The most famous inventor of the steam engine was James Watt.