After Senate Bill 7 went into effect in January 2002, nearly 6 million power customers became eligible to choose their energy supplier. That number has grown through the years. By deregulating the state’s energy market, the Texas Senate gave constituents the power to choose. The process of energy deregulation in Texas dismantled the utilities’ monopoly over the electric market and encouraged customers to explore their energy options.
In terms of renewable sources like solar and wind, weather impacts supply. California’s duck curve[cite] shows the difference between electricity demand and the amount of solar energy available throughout the day. On a sunny day, solar power floods the electricity generation market and then drops during sunless evening, when electricity demand peaks.[117]

Anyone on a standard rate tariff is at risk of seeing rising energy bills – so one of the best ways to protect from energy price increases is to switch to a fixed rate tariff. This means that for the duration of the deal, the cost of your energy and gas will be fixed. You may be able to switch to a cheaper fixed price tariff at any point, or you may have to pay a fee if you switch before the end of the deal – so check your paperwork.
Unlike with long-term plans, monthly, variable rate (no-contract) plans have no cancellation fees. You won’t have to pay a penalty if you decide to take your business elsewhere because you found a better deal. Plus, you won’t be left paying more than you should if the market rate for energy trends down. However, if the market prices rise, you’ll have to pay more than those who are in-contract.