Otter Tail Power Company

Climate Impact & Sustainability Data (2023)

Total Carbon Emissions:2.6 million tons CO2e (2023)

Scope 1 Emissions:2,400,902 tCO2e

Scope 2 Emissions:60,751 tCO2e

Scope 3 Emissions:1,074,279 tCO2e

Renewable Energy Share:37% (owned and contracted generation, excludes MISO market purchases)

Water Consumption:910.2 million gallons consumptive, 38.8 million gallons non-consumptive (2023)

Waste Generated:5.2 metric tons of hazardous waste disposed (2023)

Carbon Intensity:1,176.6 pounds per megawatt hour (2023)

Completed the 49-MW Hoot Lake Solar facility, bringing nearly 40 percent of owned and contracted energy generation from renewable resources.
Purchased Ashtabula III Wind Energy Center, adding 62 MW of nameplate capacity to owned generation assets.
Began plans to upgrade and refurbish wind turbines, expecting approximately 164 GWh of additional energy.
Reduced SO2 emissions by 62%, NOx emissions by 79%, and Hg emissions by 88% from 2005 levels.
Completed Hoot Lake Plant’s decommissioning and site restoration.
Closed coal ash landfill by installing a geomembrane cap and drainage system.

Installed 480 of 174,000 advanced metering infrastructure (AMI) meters.
Launched the Uplift program providing credits on electric bills for Minnesota residential customers receiving Energy Assistance.
Added maternity and parental leave policies for non-union employees.
Updated vacation policies to better serve employees.
Minnesota customers saved 61,444 MWH of energy and South Dakota customers saved 6,650 MWH through energy conservation programs.

Nine of ten Otter Tail Corporation board members were independent in 2023.
Regularly reviews significant and emerging risks, including cybersecurity and climate change.

Long-term Goals:

Medium-term Goals:

Own or contract energy generation that is 55% renewable by 2030 (excludes MISO market purchases).
Reduce carbon emissions from owned generation resources 50% by 2030.

Short-term Goals:

Increased costs to maintain a safe and reliable system while meeting growing electricity demand.
Changes in customer mix.
Cybersecurity incidents posing a threat to customer, employee, and vendor data privacy and reliable operation of the electric system.
Evolving regulations for fossil fuel-fired plants (Greenhouse gas regulations, Regional Haze Rule, Mercury and Air Toxics Standards Rule, Coal Combustion Residuals Rule).

Increased capital spending in the replacement of aging transmission and distribution assets.
Strategic Overhead to Underground program.
Enhanced preventative and responsive processes to reduce wildfire risk.
Exploring transmission and distribution technologies for more efficient and responsible operations.
Submitting grant applications for Infrastructure Investment and Jobs Act funding.
Adopting, revising, and maintaining policies, processes, controls, and technologies to address cybersecurity threats.
Regular testing of cybersecurity policies, processes, controls, and technologies.
Active participation in boards of directors and programs to address cybersecurity.
Evaluating the impact of evolving regulations and working with states to develop implementation plans.

Frameworks Used: GRI Standards, SASB, TCFD

2023 Minnesota Governor’s Workplace Safety Silver Award
2023 Minnesota Erosion Control Association Environmental Excellence award (Hoot Lake Solar)