Featured Articles

Modules
By:
Blair Reynolds
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In this article, we briefly explore the history, anatomy, physics and lexicon of crystalline silicon (c-Si) PV cells. We then consider the evolution of modern high-efficiency c-Si PV cells. Finally, we consider some of the most promising paths forward to higher-efficiency and lower-cost c-Si PV modules for terrestrial applications. As this story tells, it can take a lot of time—and a measure of good luck—for a solar cell technology to journey from the research laboratory to a format that...

Design & Installation
Vendor and Equipment Highlights
By:
David Brearley
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After a two-year absence, Solar Power International 2018 returns to Southern California for 4-day residency at the Anaheim Convention Center, September 24–27. Produced by Solar Energy Trade Shows, SPI is a collaboration between the Smart Electric Power Alliance and the Solar Energy Industries Association. Co-located events include Energy Storage International, Hydrogen + Fuel Cells North America, and the Smart Energy Microgrid Marketplace. With more than 620 confirmed exhibitors and over 1,500...

Inverters
By:
SolarPro Staff
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Updated for 2018, SolarPro’s 3-phase string-inverter dataset includes electrical and mechanical specifications for 88 inverter models from 16 manufacturers. Due to the modularity and scalability it offers, this product class has become a popular power conversion option for high-capacity commercial, industrial and utility-scale projects.

Design & Installation
By:
Josh Weiner
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Here I provide residential solar contractors with some guidelines and best practices for designing solar-plus-storage systems that meet or exceed customers’ expectations.

Project Profiles
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SolarPro Staff
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Between the two sites at the 7.9 MW Sacramento International Airport, Borrego Solar installed more than 23,000 LG solar modules mounted on NEXTracker self-powered independent-row trackers.

Product Launches
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SolarEdge has introduced the P850 2:1 commercial power optimizer, which replaces its P800s power optimizer model.

Product Launches
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The recently launched Planet Plan Sets streamlines the process of obtaining third-party permitting plan sets for residential PV and energy storage systems.

Product Launches
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Enphase Energy and Solaria have partnered to produce the Solaria PowerXT-AC model. The ac module integrates Enphase’s IQ 7+ microinverter with Solaria’s all-black high-power 355 W module.

Inverters
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The fully programmable 5 kW SkyBox measures and monitors power to and from any connection point—utility, solar, battery, generator and load—to dynamically optimize energy production and consumption based on an individual owners’ energy profile.

Design & Installation
By:
Anastasios Hionis, Mat Taylor
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A PV project’s transition from the construction phase to the operations phase is a flurry of activity. Project stakeholders must coordinate schedules, materials, trades, troubleshooting and testing while adhering to design documents, contractual requirements and project milestones. As such, the sprint to achieve commercial operations is a busy time with many challenges. We share lessons learned from our project completion experiences, both good and bad, and our recommendations for a more...