You’ll also see a flat rate and a price per kWh rate for TDU or TDSP (which stand for Transmission and Distribution Utility or Transportation Distribution Service Provider). These are costs that your utility charges for delivering electricity and maintaining power lines. The costs are unique to your local utility and have nothing to do with your electricity provider.
Technology that now allows smaller quantities of power to be generated closer to the end-users at prices not too much higher than grid-based power are undermining those economies of scale. More efficient turbines, for example, allow large power users like cement plants and petrochemical factories to come off the grid. Today the limiting factor for large companies to come off the grid often isn’t the efficiency of the power generation technology, but the lack of easy availability of fuel, such as gas or coal to power these turbines Even this problem is being solved by innovations like mini-liquefied natural gas projects.
Landsvirkun, Iceland’s national power company, offers electricity to buyers for as low as $0.043 per kWh, which is nearly on par with what can be found in Washington State. Coupled with 20% corporate tax, the nation’s low energy prices have attracted not just data centers, methanol producers, silicon metal producers but also aluminum companies—which, again, consume massive amounts of electricity.

As you shop, you’ll see the rates advertised in terms of kilowatts per hour (kWh) — the energy used to power 1,000 watts for one hour. According to the U.S. Energy Information Administration, the average price per kWh for electricity in Pennsylvania is 14.52 cents, while the Public Utility Commission's “price to compare” currently hovers around 8.0 cents. Clearly, there’s a lot of price variety out there. And, given the hundreds of providers doing business in Pennsylvania, exploring electricity options can be pretty toilsome.
However, a few of the countries on the chart do have pricey electricity. Nuclear power accounts for close to three-quarters of France’s energy, and yet its electricity is on average $0.07 cents per kWh more expensive than that of the U.S. Again, diversification is key. Germany, which already has costly electricity, will soon see its prices soar even higher once it decommissions its nine currently operating nuclear plants, a gargantuan, politically motivated project that’s scheduled to be completed by 2022.
Variable-rate supply plans, as the name suggests, have a rate that varies based on the market price of electricity. Seasonal and market fluctuations can affect supply rates. While variable-rate supply plans can allow you to take advantage of market-price lows, there is the possibility of paying for high supply rates when demand is at its peak. These plans offer great flexibility.
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