Manufactured in the USA.
Designed by solar professionals.
AC solutions optimized for solar applications.
Mission
To provide quality electrical equipment designed especially for the solar and storage industry.
Vision
To be customer focused—delivering quality products that simplify installation and provide value in long-term operations & maintenance.
Strategy
To provide quality electrical equipment designed specifically for the solar market that bring long and short-term value to installers and the industry.
“Being deeply entrenched in the industry has given us great insight into the pain points and thus the opportunities, to provided better, more industry-specific products.”
Dennis Zielke, Founder
Our History
2022
GROWTH
Bill Vietas joins the team as informal advisor
Solar Recombiner rebranded as S2 Systems, Inc.
2023
LAUNCH
Solar Recombiner rebranded as S2 Systems, Inc.
ACR-1200 designed and placed into production
ACR-600 designed
UCP (Universal Carport Panel)
2020
FOUNDATION
Solar Recombiner was founded with the purpose of addressing the lack of specialized equipment serving the rooftop solar market.
2021
PRODUCT
Design and testing of ACR-1000 completed; product ready for market.
First ACR-1000 sold for 2.23 MW Solar + Storage project in Mendocino County, California
Our Story: Deliberate by Design™
“Back in the 90s, I had the privilege of working in professional motorsports—specifically, Winston Cup and SCCA Trans Am. I was an accomplished welder, fabricator, and machinist. Because of my ability to create something from a mere idea, I was frequently tasked with building that which did not exist except in someone’s mind. Valve covers, oil pans, oil filter housings, custom tools, you name it. All created from a simple napkin sketch, or just a dream.
Thirty plus years later, I have had occasion to reflect on our design philosophy at S2 Systems. All of our bespoke equipment has a common path: our designs are birthed on the rooftops, on the shade structures, in the field where the equipment will be used. We design our equipment to be both installer-centric and solar-friendly. Our industry is unique and our equipment must be able to meet those unique requirements—like wire handling and thermal performance. After the the field and industry requirements are defined, we then start applying the relevant codes, standards, etc. that are the guideposts to developing safe equipment.
Everything we do is Deliberate by Design. There are no accidents. From our ACRs and UCP to our forthcoming AC Disconnects, every aspect of the design is deliberate.”
DENNIS ZIELKE, FOUNDER
30+ Years Experience in Construction and Renewables
Solar Estimation and Design since 2011
Solar Project Management
Experience from 100 kW – 8.7 MW, 75 MW for BESS ~6 Years
QA/QC Experience