As we round out the last Solar Tech Talk of 2022, Aaron Bingham and Tiernay Marsh, two of BayWa r.e.’s resident solar experts, look at the impacts of legislation and technology on the solar market. First, they bring us all up to speed on the California net metering decision set to go public mid-December. Then, they sit down with solar modules supply experts from JA Solar to discuss the next steps in wafer technology and the current availability of panels.

Watch or listen to the recording below:

Highlights from This Episode:

California Net Metering – What’s to come?

Aaron and Tiernay start off the episode with a review of big actions on net metering coming down the line for California. The new NEM 3.0 legislation is expected to pass mid-December and will be a big damper on the residential solar market. This is such an important conversation for all solar installers to be watching.

Help Support Solar in the Golden State – Get involved with California Solar and Storage Association now:

Learn more about NEM 3:

A Conversation with Solar Module Experts at JA Solar


Thomas Nielson, Director of Sales, JA Solar

Tosho Galitev, Senior Manager Engineering, JA Solar

In the main highlight of the episode, Tiernay and Aaron are joined by experts from JA Solar, an international solar module manufacturer that partners closely with BayWa r.e. to bring top-tier products to solar installers. Recently, JA started offering residential solar modules and the group dives into what this means for the market, installers, and homeowners.

Check out the discussion in the recording for a deep dive into:

  • JA’s higher efficiency modules for home solar systems
  • The evolution of larger wafer design and how it promotes efficiency
  • How JA is reducing the degradation of their solar modules
  • What you need to know when designing with the S31 series JA modules
  • How JA modules easily adapt to different rail sizing and clamping
  • The strong supply of modules now and what is expected in the future


For the past 15 years, Aaron has worked with PV equipment manufacturers and distributors to drive the ethical and sustainable growth of the clean energy industry. Through his work in solar sales, engineering and product management Aaron has supported solar installers by developing educational resources, advocating for informed and responsible application of products, and guiding company policies that support healthy industry growth. Today, Aaron works closely with top US PV and storage equipment manufacturers to chart product roadmaps and lifecycle information, create educational content for industry consumption, and facilitate clear communication with the BayWa r.e. team and customer base. He is also the host of the Solar Tech Talk podcast by BayWa r.e.

Aaron resides in San Francisco, California with his partner and their dog, Bella. 

David Dunlap BayWa Leadership

Tiernay began her solar career in 2010 and has since worked in various specialties throughout the industry. Her work at a solar installation company doing grassroots marketing and her time at a start-up originating utility-scale projects has helped Tiernay develop a broad understanding of the industry. After several roles in sales at BayWa r.e. Solar Distribution, Tiernay now leads the Key Accounts team to help customers identify patterns in their businesses and evolve their processes for success.

Tiernay holds an MBA and a Bachelor’s in International/Global Studies from the University of Arizona, where she also served as an adjunct professor of business communications. When she isn’t digging into data to find efficiency opportunities for our customers, Tiernay can be found hiking or climbing in the Sonoran Desert with her partner and pups.

BayWa r.e. Solar Systems LLC supplies residential and commercial solar installers in the United States with quality solar + storage components, forecasting, business planning advice, and a community of experts. Visit to read our industry insights articles and stream our Solar Tech Talk and Solar Town Hall podcasts on YouTube and Spotify. Follow us on LinkedIn, Twitter, and Facebook to stay connected. Ask us about our Split Pay financing program and use our industry-leading Webstore to save time, get gear shipped, and get jobs done! Part of the BayWa r.e. Global family of renewable energy companies.