The mid to late 1880s saw the introduction of alternating current (AC) systems in Europe and the U.S. AC power had an advantage in that transformers, installed at power stations, could be used to raise the voltage from the generators, and transformers at local substations could reduce voltage to supply loads. Increasing the voltage reduced the current in the transmission and distribution lines and hence the size of conductors and distribution losses. This made it more economical to distribute power over long distances. Generators (such as hydroelectric sites) could be located far from the loads. AC and DC competed for a while, during a period called the War of Currents. The DC system was able to claim slightly greater safety, but this difference was not great enough to overwhelm the enormous technical and economic advantages of alternating current which eventually won out.
Once you’ve chosen the energy supply plan that is right for you, the hard part is over. The enrollment process requires only a few details to get your supply service started: your contact information, address and utility account number. You can find your utility account number on your utility bill on the top left corner under your name. After you’ve completed enrollment, your local utility company will be notified of the change and apply the new supply plan pricing to your next bill – no further action necessary. Get started now; enter your ZIP code above.
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.
*Only new customer successful enrollments with Constellation. Cards are issued by Virtual Rewards Center. Valid email address required for receipt of Gift card. Gift cards will not have cash access. For any questions about your Gift card, call our customer care team at 1-877-997-9995. The listed merchants are in no way affiliated with Constellation nor are the listed merchants to be considered sponsors or co-sponsors of this program. Use of merchant names and/or logos is by the permission of each respective merchant and all trademarks are the property of their respective owners. Terms and conditions are applied to gift cards/certificates. Please see the merchant gift card/gift certificate for additional terms and conditions, which are subject to change at merchant's sole discretion. Constellation will share your name and email address with Virtual Reward Center for reward fulfillment only. Reward link expires in 3 months.
When we looked at each provider’s offerings, we focused on plans with innovative pricing or attractive deals, then did the math to find out which would pay off over time. To our surprise, the results were all over the board. Green plans weren’t always more expensive than their traditional counterparts. Sometimes a fluctuating variable rate is still cheaper in the long run. Our takeaway: It pays to shop around. We’ll walk you through our analysis — so you can do the same as you compare rates.
The world's first public electricity supply was provided in late 1881, when the streets of the Surrey town of Godalming in the UK were lit with electric light. This system was powered from a water wheel on the River Wey, which drove a Siemens alternator that supplied a number of arc lamps within the town. This supply scheme also provided electricity to a number of shops and premises to light 34 incandescent Swan light bulbs.