Page 9 - ES&G report 2021 final
P. 9

2007: First utility-scale wind generation in Missouri    Hydropower – a longtime part of a diverse generation mix

 Today: 1,240 MW from eight farms in three states
            At Associated’s formation in 1961, hydropower was the key source of power. Today, the hydropower from
            federal dams in Missouri, Oklahoma and Arkansas continues as a reliable resource Associated uses to supply
            electricity to members. While hydropower is our least expensive resource, it is a limited commodity dependent
            on rainfall and the capacity of lakes and dams to store the water, as well as a federal allocation to multiple
            power companies.

 Clear Creek Wind Farm
                                                                                                Table Rock dam

 2007-2008  2010  2012

                                          A historic first: wind and

                               hydropower supply full member load

                Associated Electric Cooperative experienced a generation milestone April 6, 2021, by serving 100%
 150 MW  150 MW  300 MW  of member load with wind energy and hydropower. Member load for the first hour was 1,425 mega-
                watt-hours and it was served with 400 MWh of hydropower and 1,025 MWh of wind energy.

                While not typical, other wind production milestones included:
 2015  May-2020  Dec-2020
                •  Achieving 95% capacity factor during the hour ending at 8 p.m. on Dec. 22, 2020, serving 45% of
                  member load during that hour.
                • Serving 72% of member load with only wind April 6, 2021.

                •  Marking 74%, the largest for serving member load up to that time, with wind energy and hydro-
 168 MW  235 MW  237 MW  power, on April 8, 2021, for the hour ending at midnight. This included 698 MWh of wind and
                  460 MWh of hydropower.

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