The tether products from Hammerhead Industries were designed to help reduce workplace accidents caused by falling tools. Its Gear Keeper line of products includes retractable tethers and energy absorbing lanyards that accommodate tools and instruments weighing up to 30...
In an effort to increase quality and simplicity in racking installations, Unirac has introduced its Flat Flashing. This two-part flashing is intended for use on any composition asphalt shingle roof and requires sealant only when the installer feels it is necessary.
Snake Tray offers two products specifically for the PV market. Solar Snake Tray options are available for low-slope roof applications and ground-mount installations. The rooftop tray is manufactured with stainless steel and is hand-bendable, allowing the tray to be easily...
The Aurora Trio 10 kW and 12 kW inverters incorporate 3-phase output for use in commercial applications. Similar to the smaller residential units from Power- One, the Trio inverters offer dual dc input sections, each with an independent MPPT, allowing for greater...
Bentek Solar offers a full line of string combiners and recombiners for residential, commercial and utility-scale projects. They have added a new line of circuit breakerbased recombiners targeting commercial-scale projects at 250 kW to 1 MW. The 600 Vdc breakers serve as...
A thermal imaging camera can be a great addition to most integrators tool belts. These cameras allow you to visualize and analyze temperatures of mechanical and electrical equipment and quickly identify problem areas. While imaging cameras are not specifically designed for...
Valentin Software, producers of design and modeling software for the PV and solar thermal industries, released version 5.0 for its PV*Sol Expert program and 5.0 for T*Sol Pro. The PV*Sol revision introduces the ability to incorporate a digital image of the proposed array...
In an era where 1%-2% efficiency gains define an inverters competitiveness, utilizing a solar tracker can result in a whopping 20%–40% increase in kWh over a fixed-tilt system . Are trackers the best answer for large ground-mounted PV arrays?
Operations & Maintenance
Performance guarantees are widely used in the commercial solar industry, yet they are frequently misunderstood. A PV performance guarantee contract is the tool used to give the at-risk owner confidence that the system will perform as expected.
Low natural gas prices and lack of public awareness of solar thermal technologies are the two largest barriers to expansion of the US industry. The public profile can be improved with solar heating systems that are professionally commissioned.
In 2017, Joe Schwartz contracted True South Solar to install a 3.45 kW SunPower array on an agricultural building located 320 feet from the system’s power room.
Design & Installation
In this article, I provide a detailed case study and consider the potential benefits of calculating maximum voltage or current values based on simulation program results.