SMA Solar Technology is showcasing an expanded range of ‘Sunny Boy’ TL-US inverters with ‘Secure Power Supply’ at Solar Power International. The higher power ratings of the new Sunny Boy 7000TL-US and 7700TL-US are designed to meet the needs of large residential PV projects and are able to provide daytime power in the event of a grid outage.
Problem
Large residential PV projects boarder the need for commercial rooftop balance of system (BOS) components and configuration, increasing installation costs and limiting the ability to optimise the system for best performance and lowest LCOE (Levelized Cost of Electricity). Offering a wide range of power classes, including two models specially designed for service-constrained systems, offers installers the right fit for virtually any residential PV application.
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Solution
The Sunny Boy 7700TL-US is specially configured for homes with 200-amp service panels, allowing solar installers to maximise system size and energy production without expensive service panel upgrades. Each model of the Sunny Boy TL-US series is equipped with the popular Secure Power Supply feature, which addresses the needs of grid-tied system owners during power outages. It makes it possible for the inverter to provide up to 1,500W of daytime standby power when the grid is down for charging laptops, cell phones and more, without the need of additional, costly batteries. The inverter’s shade-tolerant ‘OptiTrac’ Global Peak MPP tracking algorithm and two MPP trackers provide increased energy production for complex arrays with partial shading or multiple roof orientations.
Applications
The Sunny Boy 7700TL-US is specially configured for homes with 200-amp service panels, allowing solar installers to maximize system size and energy production without expensive service panel upgrades.
Platform
Additional features of the Sunny Boy TL-US series include a transformerless design that ensures high efficiency and reduced weight, and integrated DC AFCI functionality meeting NEC arc-fault protection requirements and certified to the UL 1699B standard. It also provides easy monitoring and control features, including a large graphic display and the optional plug-and-play Webconnect data module for easy system monitoring with direct data transmission to Sunny Portal. With high CEC efficiencies, a wide input voltage and extended operating temperature ranges from -40 to 140 F, the Sunny Boy TL-US series offers enhanced power production under a variety of conditions.
Availability
October 2014 onwards.