Be sure to check out our 11-Month CD Special paying 4.75% APY1. Open your account online today


Your deposit would offset carbon emissions equivalent to:

Trees Planted
Miles Driven
Coal Burned (lbs)
Waste Recycled (lbs)

Images depicting sky and landscape changes are for illustrative purposes only.

Estimated CO2 offset calculations and deposit-to-impact ratios are updated monthly and fluctuate based on projects financed.

CO2 equivalencies gathered from US EPA Greenhouse Gases Equivalencies Calculations & References.

CO2 offset calculations above are based on projects financed through May 31, 2023.


The Story Behind greenpenny

Greenpenny is powered by Decorah Bank & Trust Co., an employee and family-owned bank located in Decorah, Iowa. Greenpenny was created to enable big change by inspiring the use of clean energy. It all began in 2000, when leaders of Decorah Bank became more concerned with providing a healthier environment for its customers and employees. Decorah Bank made energy improvements and eventually added solar PV production to all of its facilities.

As Decorah Bank evolved into an energy-responsible leader in the community, the Bank began measuring its carbon footprint in 2008. It also became a known source of financing for solar installations in Northeast Iowa. Today, Decorah maintains one of the highest amounts of solar production per capita in the United States. In 2019, as a result of further efficiency work and investment in solar production, Decorah Bank achieved carbon neutrality. Read about our environmental evolution.

With greenpenny, we want to bring our proven experience financing solar projects, operating in a carbon-neutral way, and helping to build high adoption of renewable energy usage into new markets. We can now serve a community of people around the country who are concerned with climate change and wish to support a values-based bank that will use deposits to finance clean and renewable energy projects. Money deposited in greenpenny will only be used to finance clean energy projects, starting with solar.

Greenpenny was created by earth-friendly bankers who want people to know that where they keep their money matters. It is designed to be a form of crowdfunding for the advancement of clean and renewable energy. You can contribute simply by keeping your money in a bank with values that create a more breathable planet and a better banking world. We can do this, together.

We invite you to explore all we have to offer so that together, we are stronger.

Explore greenpenny

*Terms and conditions apply. Certificates of Deposit (CDs) earn interest and have no monthly service charge. Annual Percentage Yield (APY) effective January 17, 2024 and subject to change. Early withdrawal penalties may apply and reduce earnings.

1$500 minimum deposit is required. This limited-time offer may end at any time. The 11-month CD will auto-renew into a 12-month CD at our then-posted current rate.

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