Solar advice: Use central stations for large-scale solar parks

07/22/2019 | Print view

Central station with transformer and power grid connection. - © HS — © HS

Central station with transformer and power grid connection.

The larger the solar power plant is the larger are the inverters. Some supplier offer complete central stations with strong inverters, transformers and the power grid connection.

In the case of industry or utility-scale solar parks, very high-performance central inverters are used which convert DC voltages of up to 1,500 volts and strong currents coming from the solar array. They are designed to feed the high-power (DC) output from the power plant into the (AC) grid with as little loss as possible.

So they also produce a higher voltage on the AC side than string inverters. Planning, installing and monitoring such substations should be left to qualified engineers, which is also why they count as power plant rather than domestic technology. (HS)

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