City Public Service of San Antonio bills you for electricity and natural gas in the San Antonio area, and you can pay through their website, by phone, or by mail
City Public Service (CPS Energy) is the municipal utility serving San Antonio and surrounding areas. Unlike some utilities, CPS Energy is publicly owned, which means it answers to a city board rather than shareholders. When you receive a CPS Energy bill, it covers either electricity, natural gas, or both depending on your service. Payment options are straightforward: online through their website, by automatic bank draft, by phone, or by check through the mail.
The bill itself shows your account number, meter number, usage for the billing period, and the amount due. Most bills arrive monthly, though you can request different billing cycles. Understanding what appears on your bill — the base charge, usage charges, and any taxes or fees — helps you spot errors and track your consumption patterns.
Key Takeaways
- You can pay CPS Energy bills online at cpsenergy.com, by phone at 210-353-2700, by automatic bank draft, or by mailing a check to their payment address.
- Online payment through their website is free and typically processes within one business day if you pay before the cutoff time.
- Your bill shows usage in kilowatt-hours (electricity) or therms (natural gas), plus a base charge that applies regardless of consumption.
- CPS Energy offers budget billing, which averages your annual costs into equal monthly payments, and you can enroll through their website or by phone.
- If you fall behind on payments, CPS Energy can disconnect service, but they must provide notice and allow time to pay or set up a payment plan.
Paying online through the CPS Energy website
Go to cpsenergy.com and look for the "Pay My Bill" option on the homepage. You will need your account number, which appears on your bill or in any CPS Energy correspondence. Click the payment link and enter your account number to pull up your balance.
You can pay with a debit card, credit card, or bank account information. Credit and debit card payments may carry a processing fee (typically around 2.5 percent), though paying by bank account transfer is usually free. The system will show you the fee before you confirm, so you can decide whether to proceed. Payments made before 5 p.m. Central Time on a business day typically post the next business day.
If you want to set up automatic payments, you can do that through the same portal. Automatic payments withdraw money on your due date each month, which prevents late fees and disconnection. You can change or cancel automatic payments anytime through your account.
Paying by phone or automatic bank draft
Call CPS Energy at 210-353-2700 to pay by phone using a debit card, credit card, or bank account. A representative will walk you through the process and confirm the payment amount. Phone payments are available during business hours and may carry the same card processing fees as online payments.
Automatic bank draft (also called ACH) pulls money directly from your checking or savings account on your due date. To set this up, call 210-353-2700 or enroll online at cpsenergy.com. Once enrolled, you do not have to do anything each month — the payment happens automatically. If you need to pause or cancel automatic payments, contact CPS Energy at least three business days before your due date.
Paying by mail
If you prefer to pay by check or money order, include the payment stub from your bill and mail it to the address printed on your statement. CPS Energy's mailing address appears on every bill. Mail payments take longer to process than online or phone payments — typically five to seven business days — so send your check early enough that it arrives before the due date.
Write your account number on the check or money order. Do not send cash through the mail. If you are paying multiple bills or have questions about your account, include a note with your payment, though CPS Energy may not respond to questions sent with payments; call them instead for account inquiries.
Understanding your CPS Energy bill and charges
Your bill shows a base charge (a fixed monthly fee) plus usage charges. Usage charges are calculated by multiplying your consumption — measured in kilowatt-hours for electricity or therms for natural gas — by the rate per unit. Rates vary by season and by customer class (residential, commercial, industrial). Your bill also shows any taxes, regulatory fees, or adjustments from previous billing periods.
CPS Energy uses tiered rates for electricity in some areas, meaning the price per kilowatt-hour increases as you use more. Check your bill to see whether you are on a tiered rate or a flat rate. If you use significantly more in one month, the bill will be higher; if you use less, it will be lower. This is different from a fixed monthly charge, which stays the same regardless of usage.
Look for line items labeled "fuel and purchased power," "transmission and distribution," or "customer service." These are standard utility charges. If you see an unfamiliar charge or a significant increase from your normal bill, contact CPS Energy to ask what it covers.
Budget billing and payment plans
CPS Energy offers budget billing, which averages your annual usage costs into equal monthly payments. Instead of paying more in summer (when air conditioning runs constantly) and less in winter, you pay roughly the same amount each month. This makes budgeting easier and prevents bill shock.
To enroll in budget billing, visit cpsenergy.com or call 210-353-2700. CPS Energy will review your 12-month usage history and calculate an average monthly payment. Every 12 months, they recalculate based on your actual usage. If you have used less than the average, you may receive a credit; if you have used more, you may owe a small amount.
If you cannot pay your full bill, you can request a payment plan. Call 210-353-2700 to discuss options. CPS Energy typically allows you to spread an overdue balance over several months, though you must also pay your current month's bill on time. Payment plans are not automatic — you must request one before your service is disconnected.
What happens if you miss a payment
If your payment does not arrive by the due date, CPS Energy will charge a late fee. The amount varies but is typically a percentage of your bill or a flat fee; check your bill or contact CPS Energy for the exact amount. Late fees are added to your next bill.
After a certain number of days past due (usually 20 to 30 days), CPS Energy will send a disconnection notice. This notice tells you when service will be cut off and how to avoid it — usually by paying the full amount due or setting up a payment plan. If you receive a disconnection notice, call 210-353-2700 immediately. CPS Energy must provide reasonable notice before disconnecting, and they will work with you on a payment arrangement if you contact them before the cutoff date.
Once service is disconnected, you must pay the full past-due amount plus a reconnection fee to restore power or gas. Reconnection can take one to three business days depending on the reason for disconnection and current demand. Avoiding disconnection by paying on time or calling early to arrange a plan is far simpler than dealing with reconnection.
Frequently Asked Questions
Can I pay my CPS Energy bill with a credit card without a fee?
Credit card payments through cpsenergy.com or by phone typically include a processing fee of around 2.5 percent. Paying by debit card or bank account transfer is usually free. If you want to avoid fees, use automatic bank draft or mail a check.
How do I find my CPS Energy account number?
Your account number appears on your bill, usually near the top. It is also in any CPS Energy correspondence you receive. If you cannot find it, call 210-353-2700 with your service address and they will provide it.
What if I think there is an error on my bill?
Call CPS Energy at 210-353-2700 to report a suspected error. Have your bill in front of you and be ready to describe what seems wrong. CPS Energy will investigate and contact you with findings. Do not ignore a bill you believe is incorrect — contact them promptly.
Can I change my billing date or billing cycle?
CPS Energy typically bills on a monthly cycle based on your meter reading schedule. Call 210-353-2700 to ask whether your billing date can be adjusted. Some changes are possible, though they may take a billing cycle or two to take effect.
What should I do if my service is disconnected?
Pay the full past-due balance plus the reconnection fee as soon as possible. Call 210-353-2700 to arrange payment and schedule reconnection. Reconnection typically takes one to three business days. If you cannot pay the full amount, ask about payment plans or financial hardship programs that may be available.