Chart House Energy recently completed the installation of a 520 kW ground mount for Agritek Industries in Holland, Michigan using Stion frameless modules. This is the largest frameless commercial project to date with Stion technology which produces 5-10% more energy per kW compared to traditional silicon panels due to:
- an industry leading temperature coefficient of 0.26% / °C
- no light or potential induced degradation
- increased performance in shaded environments
Chart House Energy, a solar engineering, procurement, and construction firm based in Muskegon, Michigan, developed an industry leading low-cost custom racking solution that can be manually adjusted on a seasonal basis to further boost performance. The frameless panels were adhered to the ground mount with an adhesive manufactured by Sika so that no clamps were required for the installation. Sika makes industrial grade adhesives used for hurricane resistant glass and skyscraper window applications. “We are excited to see the development of new low-cost solutions that pair well with our frameless line of modules, as it is the combination of Stion’s low-cost high-efficiency modules, and innovative low-cost racking solutions that will help continue to drive mass adoption of Stion’s technology,” said Jim McGrath, VP of Sales for Stion Corporation.
The Chart House Energy installation utilized SolarEdge P405 optimizers and SolarEdge string inverters, which are both growing in popularity for the rapidly expanding US commercial market. SolarEdge P405 optimizers are designed specifically for high voltage panels like Stion CIGS modules. Two panels are paralleled to each optimizer, which can inform maintenance personnel when a panel or inverter underperforms, increasing up time and system performance while also providing proof for warranty claims. Optimizers increases performance by 5-10% by starting up the inverter earlier, and by maximizing the current of each string by matching it to panel performance hundreds of times every second.