Solar Power International 2017 Preview: Page 5 of 5

Vendor and Equipment Highlights


HT Instruments is an Italian manufacturer of multifunction electrical test equipment that offers a suite of specialty tools for solar applications. The company’s most recent release, the I-V500w, the industry’s first 1,500 Vdc–rated I-V curve tester, addresses an area of need within the utility sector. HT designed the I-V500w, rated for 15 A at 1,000 Vdc or 10 A at 1,500 Vdc, for measuring I-V curves on individual modules or source circuits. The internal memory can store data for up to 30 reference modules and 249 I-V curve traces. Technicians can expedite testing in combiner boxes by using the new KITKELVIN auto-sequence function. An onboard screen allows single-person operation, and Wi-Fi connectivity permits wireless connections to mobile devices. The free HTAnalysis app not only allows users to manage the onboard module database from a cell phone or tablet, but also provides troubleshooting assistance and enables data storage on the HTCloud. After collecting I-V curve traces in the field, commissioning agents and O&M providers can use HT’s TopView software to download these data from the cloud and generate reports for project stakeholders.
HT Instruments / 719.421.9323 /


Founded in 1987 and headquartered in Shenzhen, China, Huawei Technologies is not only the largest telecommunications equipment manufacturer in the world, but also the top global PV inverter supplier in terms of megawatts of shipments. The company has devoted significant R&D resources to utility-scale PV power plant optimization. This process involved a line item–by–line item assessment of project construction costs and considered up-front design costs, as well as system performance and O&M expenses over time. After evaluating project deployment holistically, Huawei introduced the FusionSolar Smart PV Solution, a string inverter–based platform for large-scale solar farms. Central to this plant architecture is Huawei’s new 45 kW, 1,500 Vdc string inverter, the SUN2000-45KTL-US-HV. One of Huawei’s product design goals was to push inverter capacity as high as possible within a passively cooled NEMA 4X–rated enclosure. Eliminating the need for cooling fans reduces not only material and O&M costs but also the reliability issues and dust associated with outside air exchanges. Huawei also eliminated the need for dc fuses and combiners by providing four separate MPPT channels, each with two string inputs. Huawei believes this granular system architecture, in addition to facilitating design flexibility and optimal energy harvest, provides significant O&M benefits. For example, the platform supports remote string level I-V curve tracing, which has the potential to automate essential commissioning and maintenance activities. Furthermore, in the event of an inverter failure, a local service technician can easily swap out inverter compartments while leaving the ac connections in place. The platform allows for dc-to-ac ratios as high as 1.5:1 in any environment and higher ratios under engineering supervision. It uses powerline communication technology to send inverter data over the ac power infrastructure to a proprietary or third-party data acquisition system. Huawei is so confident in the scalability of its high-voltage string inverter–based PV plant architecture that it has eliminated central inverters from its product portfolio.
Huawei Technologies USA / 214.919.6000 /

MEASURE • Booth 701

Washington, DC–based Measure provides drone-facilitated services to enterprise customers in the telecommunications, live media, energy and construction industries. In June, the company announced the addition of aerial solar plant inspection to its services portfolio. The cornerstone of these solar services is temperature-specific thermal orthomosaic imagery, which Measure collects based on preconfigured flight plans. Data engineers then process these data to identify module performance problems based on specific thermal signatures. Measure can also use drones to conduct site or shade analyses, detect misaligned trackers, inform vegetation management activities or scan inverter temperature. As the solar industry goes mainstream, projects are increasing in frequency and scale, which creates opportunities for working smarter rather than harder. Aerial surveys have the potential to improve operational efficiencies and minimize exposure to electrical hazards.
Measure / 202.973.3502 /

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