Implementing the A2 Zero Carbon Neutrality Plan
Session IX: COMMERCIAL ON-SITE SOLAR AND STORAGE: WHY SOLAR? WHY NOW?
Integrated System Planning for New and Existing buildings
Speakers:
Missy Stults, PhD, Director City of Ann Arbor, Office of Sustainability and Innovations
Chuck Hookham, PE, President, Arbor Consultants, PC
Jan Culbertson, FAIA, Washtenaw 2030 District
Description:
On-site solar and solar + battery systems can reduce electricity usage and cost, enhance utility
distribution stability, increase resilience, and lower carbon emissions reduction, with multiple
advantages for commercial, industrial, multi-family residential building owners and non-profits. Studies
have found that rooftop or ground-mount solar PV is both cost-effective and offers the shortest timeline
to achieve these goals, with solar-charged batteries enabling both reduced peak consumption and
reliable power during DTE outages. Federal investment tax credits available right now are also
compelling, offering over a 30% reduction in initial investment which shortens payback.
This session will cover the City of Ann Arbor plans to establish a Sustainable Energy Utility (SEU) and how
commercial solar can be part of that system, 2021 Energy Code solar-ready requirements for residential
and commercial buildings scheduled to be in effect in 2025, and actions that owners can take right now.
Chuck Hookham will also provide insights into sizing, payback, metering, and the planning that is
essential for both solar and integrated solar and storage systems. He will also highlight the importance
of commissioning renewable generation systems and having solid contract documents to protect the
owner’s investment.
The Washtenaw 2030 District Commercial Solar Program technical resources will be highlighted, so you
can access free technical assistance to advance on-site generation for each of your projects. In addition,
resources for understanding and applying for IRA Tax Credits and Direct Pay will be shared.
