There are many reasons for this but I’d like to focus on African power utilities. Power utilities are a very important part of the chain for delivering electrical power to end users. One of their key roles is to purchase power that has been generated by others, sell it on to end-users and to collect revenues. They are vital for extending grid-based power to consumers and to ensure regular and efficient power supply. As they collect money from end-users and pay it on to other players in the system, they are also vital in ensuring money flows through the entire power sector.

Many people are aware that Iceland has the cleanest energy in the world by far. The island-nation generates 100% of its electricity from renewables such as hydroelectric and geothermal sources, and it’s also flirting with wind power. What those same people might not realize, however, is that this results in some of the cheapest electricity in the world.

The Virgin Islands, in fact, has some of the world’s most expensive electricity precisely because it doesn't have the means to diversify its energy portfolio. The territory depends entirely on imported crude oil to run its petroleum power plants, and as a result, its energy goes for between 50.8 and 54.8 cents per kWh as of last year. This business-repelling price far exceeds that of countries whose energy is considered steep compared to the U.S. average, namely, Denmark ($0.41 cents per kWh), Germany ($0.35), Spain ($0.30), Australia ($0.29) and Italy ($0.28). This year the Virgin Islands has tried to reel in businesses with substantial tax breaks, but the savings might not be enough to offset the eye-popping electricity bill.

According to a 2016 J.D. Power national report, switching from the utility company to an REP is not as attractive as it once was. Deregulated markets aim to drive down costs and encourage innovation but has really only succeeded in the second — the price gap between utility rates and retail rates has actually been closing. But deregulation has been successful in championing green energy and improving customer service. This improvement shows up in some impressively high J.D. Power ratings.

Even though customers in deregulated Texas markets routinely pay more for electricity, there is a bright spot. The gap between the average price paid for electricity between deregulated and regulated market has shrunk to 8.8 percent. In 2006, customers in deregulated cities were paying nearly 47 percent more for electricity than their counterparts in regulated cities.

It’s worth noting that you can switch for free with no exit fee 42-49 days before the end of your contract. Under Ofgem’s standards of conduct, energy firms have to give you between 42 and 49 days’ notice of your tariff ending. You can use this time to decide whether to stick with them, or switch. If you decide to switch, you won’t be charged an exit fee.