What Vistra is
Vistra is a power company with two halves. Its power plants generate electricity and sell it in bulk, and its retail brands buy electricity and resell it to homes and businesses. Companies built this way are called gentailers, short for generator plus retailer. The pairing is the point: when bulk power prices spike, the retail side’s costs go up but the plants earn more, so a swing that hurts one half helps the other.
- ~44,000 MW of plants
- ~5M retail customers
- ~$8.5B sold plant-to-retail
How the grid sets prices
The grid can store very little electricity, so power has to be generated the instant it’s used. To keep up, the grid operator calls on plants in order of cost, cheapest first, adding more as demand climbs. Every plant running at that moment is generally paid the price of the last one called. On a mild night that price is low; on a scorching summer evening it can soar, and the plants that are cheapest to run earn the most.
How power plants get paid
A plant can earn money three ways. It sells the electricity it generates, either at whatever the market pays in the moment or at a price locked in ahead of time with a buyer who wants certainty. It can be paid to stay available for the grid’s hardest days, even if it’s never called on. And it can be paid to hold power in reserve, ready to step in within minutes if another plant suddenly fails.
Why the regions differ
Not every region pays plants the same way. Texas works like rideshare surge pricing: plants are paid mainly for the power they deliver, and the biggest paydays come in short bursts when supply runs tight. The East and California also pay a standing fee just for being available, like a driver paid to stay on call during busy hours, which makes plant income there steadier and settled further in advance.
How the segments fit
Vistra reports its business in five segments. Retail is the customer-facing half: the brands people buy electricity and natural gas from. Texas, East, and West are the generating half, power plants grouped by region, each selling into the grids in its region, to other companies, and, where Vistra has retail customers, to its own retail brands. The fifth, Asset Closure, cleans up retired plants and mines. The four active segments are described below.
