Why Solar Developers Should Evaluate Compensatory Mitigation Early

As renewable energy development accelerates across California and the western United States, developers are facing a growing challenge: how to efficiently navigate compensatory mitigation requirements while maintaining project schedules and budgets.

California’s ambitious clean energy goals are driving unprecedented levels of renewable energy investment. According to industry and agency projections, California may require hundreds of thousands to millions of additional acres of renewable energy development over the coming decade to meet its clean energy targets. At the same time, water supply challenges and implementation of the Sustainable Groundwater Management Act are reshaping land-use patterns across the Central Valley and other agricultural regions. As farmland is fallowed or retired from production, many landowners and developers are viewing solar energy as an attractive alternative use.

These converging trends are creating significant opportunities for solar development. They also have the potential to impact habitats that support sensitive species and other natural resources, creating compensatory mitigation requirements that can influence project cost, schedule, and overall feasibility.

One of the most common challenges ESA’s mitigation specialists encounter is that mitigation planning does not begin early enough, resulting in key project decisions being made that result in unexpected mitigation requirements. Waiting too long to begin planning how project impacts will be offset can result in substantially higher mitigation obligations than originally expected, thereby increasing the project’s costs and schedule while limiting options for a more favorable solution.

Mitigation planning should no longer be viewed solely as a permitting consideration. It is increasingly a project-planning consideration that can shape key development decisions and affect a project’s feasibility and path to construction. Early planning helps developers anticipate mitigation obligations, assess the availability and costs of mitigation credits within the project area, compare alternative mitigation approaches, and identify permitting risks before they affect critical project milestones.

For example, a solar project client may initially assume that mitigation bank credits will be readily available within the required service area, only to discover later in the permitting process that credit availability is limited or costs are significantly higher than anticipated. Evaluating mitigation options earlier can help avoid these surprises and provide greater certainty for project planning and budgeting.

In our experience, three factors typically drive mitigation strategy decisions: location, cost, and timing. Location influences whether suitable mitigation credits or conservation opportunities are available within the required service area as well as the types of compensatory credits needed. Cost affects both project budgeting and feasibility and is driven by scale of impacts and species/habitat rarity. Timing can determine whether an existing mitigation option is sufficient or whether a customized permittee-responsible mitigation approach is needed to align with permitting and construction schedules. The most effective approach depends on the project’s location, permitting requirements, schedule, and budget.

ESA helps clients evaluate and implement mitigation strategies that support successful project delivery. Our multidisciplinary team provides end-to-end services, from mitigation prospecting and site suitability analyses to environmental studies, permitting support, restoration planning, and long-term management strategies. Whether a project is best served through mitigation bank credits, an in-lieu fee program, or a permittee-responsible mitigation solution, ESA helps clients understand their options and identify the approach that aligns with project objectives.

Our team works with developers to evaluate available mitigation banks and conservation programs, identify potential mitigation properties, assess biological and regulatory requirements, and compare the financial and permitting implications of different approaches. By combining biological expertise, GIS analyses, permitting experience, restoration planning, and strategic advisory services, we help clients make informed decisions early in the project life cycle.

As solar development expands across California’s evolving landscape and beyond, mitigation planning is becoming an increasingly important component of project strategy. Developers who evaluate their options early are better positioned to navigate permitting requirements, manage costs, and maintain project momentum. ESA can help identify the most effective path forward and integrate mitigation planning into a successful development strategy.

To learn more about ESA’s compensatory mitigation services, contact Melissa Denena and our team.