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Get 5% off your electricity bill with Green Mountain Energy.

Save on 100% clean energy.

As the official Sustainability Sponsor for the Cowtown Marathon, Green Mountain is helping protect the planet — and you can do your part by signing up for renewable energy. Cowtown Marathon employees and volunteers qualify for a 5% discount on any Green Mountain electricity plan, applicable on every monthly bill.

Not a customer yet?

Click to sign up for a clean electricity plan. Once you receive enrollment confirmation with your account number, return to this page and follow the directions for current customers to activate your discount.

Already a Green Mountain customer?

Get your discount activated! Complete the discount registration using your account number and contact information as it appears on your account. Then enter your special code: COWTOWN.

Sign up and enjoy:

  • 100% renewable energy at an affordable price.
  • A 5% monthly discount on your Green Mountain electricity bill.
  • Access to sustainable products and information to help reduce your carbon footprint.
  • Personal impact updates to show how you’re making a difference for our planet.

Ready to claim your savings?

Please complete the form below with the Green Mountain account holder’s information. Then submit the form to register to receive your CAP discount on your Green Mountain Energy bill.

  • Please note, the name and contact information below must match the information that is listed on the electricity account for us to process your discount.

View Our FAQs

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Already a customer?
Can I share this program with my friends and family?
Not a customer?
What information do I need to register my current Green Mountain account for the discount?
Enjoy added savings on renewable energy.
If I move to a different home while on the program, am I still eligible?
I signed up for this program, so why don't I see it on my bill?
* The discount is available to specified customer groups actively affiliated with CAP partner companies to which Green Mountain provides commercial retail electricity service. This offer is not transferable and is only available to residential customers. Customers enrolling in the Power As You Go PlanSM are not eligible.

** The discount will be effective within two billing cycles after registration and verification of affiliate status. The discount will be calculated as a percentage of the recurring Green Mountain energy charges and any passed-through recurring TDSP charges for current month’s usage and will exclude any nonrecurring charges or fees, third-party services, taxes or tax reimbursement charges or guard lights. The discount will be applied to a single meter per customer, before other discounts or billing options are calculated.

To receive the discount, you must be a Green Mountain customer and the electricity account must be in your name. The discount ends if you move to a different service address. Re-enrollment at a new service address is subject to continuing eligibility.

Your discount will end immediately upon termination of your affiliation with the partner company or upon termination of the partner company’s electricity supply contract with Green Mountain. Green Mountain reserves the right to discontinue this program without notice.