Answer:
Monopoly
Step-by-step explanation:
A monopoly is a market structure which is typically characterized by a single-seller who sells a unique product in the market by dominance. This ultimately implies that, it is a market structure wherein the seller has no competitor because he is solely responsible for the sale of unique products without close substitutes.
Any individual that deals with the sales of unique products in a monopolistic market is generally referred to as a monopolist.
Hence, when consumers are charged very high electricity rates in an area where there is only one electric company, this is known as monopoly.
For example, a public power company is an example of a monopoly because they serve as the only source of power utility provider to the general public in a society and decides on how much to charge.