--- title: How are Community Solar credits calculated? description: A customer’s Community Solar subscription is a portion of the solar farm’s production, which is calculated based on the customer's annual electricity usage. The value of those credits is set by the utility. --- [Skip to content](https://support.altuspower.com/how-are-credits-calculated#main-content) English Show submenu for translations [Need more help? Let us know.](https://support.altuspower.com/kb-tickets/new?hsLang=en) Open main navigation Close main navigation - English Show submenu for translations - [Need more help? Let us know.](https://support.altuspower.com/kb-tickets/new) How can we help you? - There are no suggestions because the search field is empty. 1. [Altus Power Support Center](https://support.altuspower.com/?hsLang=en) 2. [Community Solar Billing](https://support.altuspower.com/community-solar-billing?hsLang=en) # How are Community Solar credits calculated? - A customer’s subscription is a portion of the solar farm’s production, which is calculated based on the customer's annual electricity usage. The value of those credits is set by the utility. - Due to seasonality, your solar credits might fluctuate throughout the year from very high in the summer to lower in the winter. This is because there is more sun in the summer months, meaning more solar energy (and credits) will be generated, on average, than in the winter. - Depending on your state and utility, it’s possible that your solar credits will offset over 100% of your utility bill in higher generation months. In this case, your utility bill will be $0, and any excess credits will be banked on your utility account. Banked credits do not expire and will automatically be applied to future bills (dependent on state). - Your solar credits will be applied to your electric utility bill each month. If you're on Standard Dual Billing, you will also receive a separate monthly invoice from Altus Power, which will reflect the total number of solar credits sent to your utility account. - If you believe that your annual electricity usage has changed substantially, or you are continuing to see a buildup of solar credits on your account, please contact our customer service team at **[hello@altuspower.com](mailto:hello@altuspower.com)** so we can adjust the size of your subscription. - [Community Solar Basics](https://support.altuspower.com/community-solar-basics?hsLang=en) - [Community Solar Application](https://support.altuspower.com/community-solar-application?hsLang=en) - [Community Solar Billing](https://support.altuspower.com/community-solar-billing?hsLang=en) - [Other FAQs](https://support.altuspower.com/other-faqs?hsLang=en) - [Commercial Sustainability](https://support.altuspower.com/commercial-sustainability?hsLang=en) [![](https://support.altuspower.com/hs-fs/hubfs/AltusPower_logo-no-subline-color@2x-1.png?width=200&height=100&name=AltusPower_logo-no-subline-color@2x-1.png)](http://altuspower.com) altuspower.com Help Center Copyright © 2026, Altus Power