Page 12 - AECI 2022 BALANCE AR copyright 2023
P. 12

A reliable foundation: Coal, natural gas and transmission


       Associated’s coal and natural gas generating fleet provides a foundation for member reliability unmatched by

       intermittent generation technologies. Dispatchable, base load coal power operates when members need it 24/7/365,
       while quick-start natural gas plants provide base load and peak power. Working together for members, the coal and
       natural gas fleet generated record output during 2022, delivered across an extensive and resilient transmission system.



                                                                Transmission system invest-
                                                                ments strengthen electricity
                                                                superhighway

                                                                  Challenged by increasing influxes of inter-
                                                                mittent power that appear on the system and
                                                                disappear just as quickly, the transmission
                                                                assets of Associated and its six member-owner
                                                                transmission cooperatives have maintained ex-
                                                                ceptional reliability. Transmission investments of
                                                                $420 million are planned to renew, upgrade and
                                                                add to the 10,000-plus mile network of high-volt-
                                                                age infrastructure. The reliability and resiliency
                                                                of the system will remain a strength and focus
                                                                as surrounding systems retire assets and new
                                                                renewable generation projects go online.
                                                                  The impact of accelerated base load gener-
                                                                ation retirements in the regional transmission
                                                                organizations surrounding Associated and their
                                                                replacement with intermittent renewables con-
       Resilient transmission system serves members             tinue to create serious reliability concerns.  Generation kept afloat during river lows
        Associated and its owner G&Ts have built and maintained one                                              During record low Mississippi River water levels in fall 2022,
       of the largest, integrated transmission systems in the country that                                     Associated used floating barge pumps to provide sufficient
       is reliable, resilient and cost effective.                                                              water flow for New Madrid Power Plant.













                                           $420 million                                                       24,554,809 MWh
                                        transmission system                                                      coal and gas
                                            investment                                                          net generation

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