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

Half Price Books is excited to have Green Mountain Energy as our official renewable energy partner. As a Half Price Books employee, you qualify for a 5% monthly discount when you, too, sign up for 100% clean energy with Green Mountain.

Not a Green Mountain customer?

Enjoy savings on
renewable energy.

Saving on renewable energy for your home is easier than ever. As a Half Price Books employee, you qualify for a discount on a clean energy plan for your home. Sign up and enjoy the benefits. You'll get:

  • 100% renewable energy at an affordable price
  • A discount on your Green Mountain electricity bill
  • Access to sustainable products and information to help you live greener
  • Impact updates to show how you're making a positive difference for our planet
Get started >

Not a Green Mountain customer?

To sign up for the discount, you need to be a Green Mountain customer. First select "Sign up for a plan" below to select the renewable energy plan that's right for you. Then write down your new Green Mountain account number and return to this page to sign up for your discount.

Note: You will be directed away from the discount program page to sign up for a Green Mountain electricity plan. Discount enrollment will not happen during electricity plan enrollment. You must return to this page for discount enrollment.

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.