Ameren developed a Biodiversity Policy to guide our operational and conservation efforts to reduce, minimize or avoid impacts on biodiversity as we develop infrastructure or conduct operations.
Native vegetation best supports natural biodiversity. The use of native vegetation also supports Ameren's Integrated Vegetation Management, which reduces the need for mowing, watering, and chemical controls because native plants are adapted to the local growing conditions. This also helps us keep maintenance costs down, passing those savings on to customers, while supporting local biodiversity.
When it comes to conservation, we believe we can have the greatest positive impact on four key areas in our service territory: pollinators, birds, bats, and the Big River ecology.
We are conscious of how our power lines may impact the avian population, which is why much of our wildlife conservation work is focused there. Ameren worked with a nationally renowned group to develop a corporate-wide program to address recurring bird fatalities at our Transmission and Distribution (T&D) facilities. The program was implemented at Ameren Illinois and Ameren Missouri T&D facilities, and includes:
In addition, Ameren initiated a territory-wide review of over 100 substations in Ameren Illinois to assess their current level of avian-safe design. We installed 92,000 avian-safe distribution poles and 180,000 protective covers on energized equipment, as well as retrofitted 1400 structures that resulted in reduced avian-related incidents at substations. The program has become a model of best practices for other utilities in the region.
See below for additional wildlife conservation projects that help protect bird populations in Missouri and Illinois:
Ameren recognizes that the operation of our wind generation facilities can directly impact bat species, while the maintenance and construction of the transmission lines can indirectly contribute to pressures on bats by altering and removing important summer roosting habitats.
Nearly 50 percent of the known hibernating population of the federally endangered Indiana bat (Myotis sodalist) occurs within Ameren’s combined service territories, as well as many other species of cave dependent bats. Ameren carefully evaluates proposed projects for their potential to impact the habitats that these species rely upon.
Pollinators and other insects are important for food production and for their ability to provide food to other wildlife, from turkey and whitetail deer, to song birds, to insect-eating bats. That’s why we plant pollinator-friendly, native vegetation installations where feasible. In partnership with private landowners, conservation organizations, research and transportation entities, Ameren has created many acres of habitat each year.
For instance, in Creve Coeur, Missouri, Ameren converted almost four acres of turf into pollinator-friendly vegetation in partnership with the St. Louis Zoo and with a native seed donation from Turfmasters, Inc. Quail Forever provided consultation on maintenance and invasive species control work for the project as well. We have several similar projects throughout the greater St. Louis region and throughout Illinois.
Just as Ameren's rights-of-ways and substations actively undergo integrated vegetation management to maintain safety and reliability, our pollinator-friendly plantings undergo active maintenance as well. For instance, new native installations will undergo several years of establishment work on the front-end, such as high mowing to control weeds, invasive species removal and overseeding as necessary. Established native plantings will then ideally be high mowed once annually during the dormant season. Already established plantings may require periodic restoration to preserve the integrity of these projects should they become overrun with invasive species or lose biodiversity, so there may be times that these projects are mowed during the growing season.
Ameren currently works with several reputable contractors to install and maintain pollinator-friendly projects on Ameren property. Finally, there may be times when Ameren must impact a native planting project on Ameren property to repair or upgrade assets to provide power to our customers. Ameren will make every effort feasible to restore this area with native species or relocate the native planting somewhere else more suitable.
Ameren is also a member of several organizations working to support pollinator habitats:
We operate multiple steam electric and hydro-electric generating facilities to produce reliable energy for our customers, and we recognize that these facilities rely upon water withdrawal and impoundment, which can alter the ecology of the river systems. We work hard to manage these potential impacts and take steps to protect and restore the ecology of those water systems.
Ameren complies with the requirements of Section 316 of the Clean Water Act and our FERC Hydro-electric Operating Licenses. On staff, we have qualified, professional fisheries scientists to guide the company's monitoring of fisheries species. When constructing new assets, we carefully evaluate impacts to wetlands and other aquatic resources and obtain the necessary permits under the Clean Water Act. By using native vegetation to restore areas disturbed by the construction and operation of our sites, Ameren helps to manage erosion and stormwater quantity and quality within the watersheds near our operations.