Avian & Wildlife Power Line Interactions
Awareness of bird and other wildlife interactions with power infrastructure is fundamental to effectively planning, constructing, and operating both conventional and renewable electric generation, transmission, and distribution on private, state, and federal lands. Assessing risk, identifying potential issues, and developing commensurate measures to minimize bird and other wildlife interactions with electrical infrastructure aid in minimizing effects to wildlife and increasing electric reliability to the owner and operator.
WEST is unique in its ability to combine knowledge of infrastructure design and operation for all voltage classes with biological and landscape influences to offer up-front design input in addition to site-specific and programmatic risk assessments. We incorporate suggested practices and guidelines outlined by the Avian Power Line Interaction Committee and our expertise and experience in the arena to manage avian electrocution risk, collision risk, and nesting for both short- and long-term planning.
As energy generation, transmission, and distribution converges across industries, land uses, and operational planning, we employ new and evolving tools to proactively address infrastructure design (i.e., substations, transmission lines, distribution lines) while also supporting reactive measures. Both of these approaches are integral to program planning, such as developing and implementing Avian Protection Plans. The WEST team has provided these services across North America over the last 20 years.
WEST collaborated with Pacific Gas and Electric Company (PG&E) and Ventana Wildlife Society (VWS) in assessing long-term risk to the California condor from power line collision and electrocution risk by developing two habitat use models for both expanding adult and subadult condor populations. WEST used over 1.9 million satellite telemetry locations collected from 79 individual California condors provided by VWS and the US Fish and Wildlife Service for the central-western and southern condor populations within California. Determining risk was based on overhead power line location, voltage, and configuration relative to the landscape and associated habitats. The primary objective was to determine which environmental characteristics or covariates would help predict condor population expansions for the two age classes across PG&E’s service territory. Scaling relative risk and predicting the probability of condor habitat use and population distribution based on key landscape features and long-term movement patterns of the reintroduced populations was structured to support PG&E’s future planning. Key objectives including minimizing the potential for condor interactions with electrical infrastructure and integrating this tool into the company’s California Condor Conservation Strategy to support both corporate infrastructure planning and stakeholder conservation efforts.