![]() ![]() “We don’t consider ourselves to be a controller,” says Ferntech’s Business Development Manager, William Duren, referring to the company’s custom-designed mini-grid control system. Equatorial Power uses Ferntech’s remote management services to provide power for communities on the Ugandan island of Lolwe in Lake Victoria. Germany-based Ferntech is taking a different approach, designing remote monitoring and control systems that collect data and analyze and manage the operation of mini-grids remotely. These built-in systems might include inverters that can handle production of grid frequencies, curtailment of PV, or islanding of the entire system battery management systems that distribute the discharge process evenly across multiple strings to ensure smooth dispatch or the control features of diesel generators that regulate voltage and speed and enable multiple generators to work together. However, mini-grid components often have integrated controls to make it easier to manage their usage. The complexity often requires mini-grid developers to invest in expensive control systems to manage storage dispatch, curtail the solar resource if it’s over-producing, or bring on the generators when necessary. It requires supervision and careful management to make sure all components are working together efficiently. A hybrid distributed energy system is complex, especially if it combines solar, storage, and a diesel generator. ![]()
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