Solar Builder

MAR-APR 2018

Solar Builder focuses on the installation/construction of solar PV systems. We cover the latest PV technology (modules, mounting, inverters, storage, BOS) and equip installers/contractors with tips and tools to make informed purchasing decisions.

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SOLARBUILDERMAG.COM | 35 Aurora Solar Inc. is a fast-growing, cloud-based solar PV design and proposal software that is used to design over 12,000 new solar projects per week across the globe. Its latest creation is SmartRoof, a tool that allows anyone to accurately and easily model residential and commer- cial sites for solar projects. SmartRoof can intelligently infer the internal structure of a roof after a few clicks. What's cool about it? Using the software, solar installers can just outline the perimeter of the roof and the software will automati- cally infer the rest of the roof 's structure. Aurora seems to have thought of everything, like quickly dragging and dropping dormers into the model and integrating them into their respective roof planes seamlessly. The remote site modeling tool enables designers to insert folds and intersect multiple roof structures, making modeling of complex roof structures significantly easier. This allows designers to create a permit-ready 3D model in less than a minute. In fact, its remote design and shade analysis tools are so accurate and reliable that several rebate authorities allow Aurora reports to replace measurements col- lected through a physical site visit and inspection, such as the Connecticut Green Bank, New York State Energy Research and Development Authority (NYSERDA), Energy Trust of Oregon and a bunch more. Aurora Solar SmartRoof Continental Control Systems' WattNode Meter Continental Control Systems has designed a new meter module for mass production, the WattNode Meter, customizable for OEM metering design. Revenue-grade accuracy is obtainable using the CCS Accu-CT family of split-core current transformers. What's cool about it? The WattNode Meter Module is a bidirectional networked energy meter offering energy measurement parameters such as energy (kW ), power (kWh), voltage, current, demand, kVAR, kVARh, power factor, frequency, etc. These energy values are com- municated using the Modbus RTU communication protocol over RS-485. The meter utilizes any external mounted or PCB mount- ed 0.333 Vac current transformers. Available as single- and three- phase modules, the meter is externally (instrument) powered from 12 to 24 Vac (isolated) or 6 to 24 Vdc. One model can measure 120 to 600 Vac, single-phase or three-phase, wye or delta services to measure bidirectionally, energy production and energy consumption. Available with a DIN rail mountable enclosure, the meter module is customizable, also available as a PCBA for imbedded energy mea- surement applications. The meter module is designed to be a low-cost customizable OEM meter. Cost reduction options such as no LEDs, no enclosure and component reduction for single-phase operation, are customizable examples that lead to a cost-competitive, high-accuracy meter for solar and energy storage applications.

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