Featured Articles

Design & Installation
By:
Bill Reaugh, Rowan Beckensten, Debbie Gross, David Brearley
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To keep everyone’s lights on, grid operators must be able to balance supply and demand across long-distance networks of high-voltage power lines. Supervisory control and data acquisition (SCADA) systems are what allow grid operators to monitor and dispatch power plants—often across vast areas—in response to constantly changing loads. We provide a high-level overview of the North American utility grid and discuss how reliability coordinators and balancing authorities work together to maintain...

Design & Installation
By:
Rebekah Hren, Brian Mehalic
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Every 3 years the solar industry receives an updated set of instructions for designing and installing PV systems—the National Electrical Code. Although adoption dates for the new Code vary by jurisdiction, many states will be operating under NEC 2017 by the end of this year. We discuss the practical implications of NEC 2017 for PV system design and installation; we also provide specific information about the intent of the new requirements, compliance strategies, cost implications and...

Modules
By:
Joe Schwartz
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Updated for 2017, this module specifications table focuses on high-power models with rated outputs of 300 W STC and greater. We include detailed electrical and mechanical specifications for more than 200 modules that are available for deployment in US-based projects.

Design & Installation
By:
David Bromberg
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In this article, the modeling of PV system energy production will be focusing on the sub-module level, which analyzes the shade impacts and electrical behavior of a design down to the level of cell strings and bypass diodes inside the solar modules.

Project Profiles
By:
SolarPro Staff
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Borrego Solar designed a portfolio of solar projects for the Newport-Mesa Unified School District (NMUSD) for the installation of solar carports and lunch shelters across 32 sites within the district.

Project Profiles
By:
SolarPro Staff
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Mass Renewables of Bellingham, Massachusetts, installed the Tesla Powerwall lithium-ion residential energy storage system in Holliston, Massachusetts.

Product Launches
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SMA’s recently launched Power+ Solution leverages its stake in Tigo Energy by combining its single-phase Sunny Boy-US inverters, available in six power classes ranging from 3 kWac to 7.7 kWac, with Tigo’s TS4-R platform.

Product Launches
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SolarBOS has launched fused ac combiner and recombiner solutions for commercial, industrial and utility-scale PV plants.

Product Launches
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SolarWorld recently announced that it has doubled the workmanship warranty on its portfolio of solar modules to 20 years.

Product Launches
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Panasonic Eco Solutions North America has added three high-efficiency models to its HIT module lineup for residential applications.