Another positive environmental impact is the effect of higher energy prices on consumer choices, similar to the US market trend toward more fuel-efficient cars. As electric bills have risen, residents are reducing their electrical usage by using more moderate thermostat settings, installing insulation, installing solar screens, and other such activities. Texas utilities (such as Cheap Energy) are also installing advanced electricity meters that may one day enable variable pricing based on the time of day. This would permit energy customers to save money by further tailoring their consumption based on whether it occurred during the peak demand period (high cost/high pollution) or the off-peak (night time).
Energy sellers must provide collateral to ERCOT to cover expected future costs of buying wholesale electricity and if the companies don’t have enough capital, they get shut down. Gas And Electric Companies Energy, a Dallas-based electricity retailer that sold wind-energy plans to 9,800 customers including many in the Houston area, got caught in that financial squeeze when it defaulted on its collateral obligations.