French-Danish partnership see solar forecasting as key step for solar+genset

November 29, 2017


French solar forecasting provider Reuniwatt and Danish decentralised energy control solutions company DEIF have just signed a compatibility certificate for upcoming hybrid projects composed of diesel generators and solar panels.


The combination of diesel generators and solar with batteries is being increasingly used in remote locations for rural electrification, mining and agriculture, to help reduce costs of electricity which is only generated by diesel.


However, the technical challenge in combining those two energy sources is difficult because gensets are hardly flexible enough to compensate for the volatility of the solar generation.


Reuniwatt believes that only by using very short-term solar forecasting can the best solution to optimise PV consumption on hybrid systems be found.


The French company has developed two ground imagers (the Sky InSight and the Sky Cam Vision), which gather images of the cloud ceiling and forecast irradiance and power in the next minutes.


Both cameras are compatible with DEIF’s Automatic Sustainable Controller (ASC), which is designed to serve as a reliable, fully integrated and optimising link between sustainable power plants and genset power plants.


The forecasting equipment is directly connected to the existing spinning reserve routine and generates automated start/stop of the gensets accordingly.


Reuniwatt’s CEO and founder Nicolas Schmutz commented, “We are very happy to be compatible with DEIF’s ASC-4, which appears to us as a central solution to optimise hybrid microgrid applications while reducing maintenance costs and the LCOE for the end user.”


Claes Sterregaard, program manager for microgrids at DEIF, said, “Using sky imagers and forecast data are crucial tools to determine and generate spinning reserve requirements.” 

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