Biggest ‘floating solar park’ in Europe will open this year in Portugal

May 23, 2022
Energy
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Image Source: https://www.euronews.com/

Europe’s largest floating solar park will take shape in July this year, in Portugal’s Alqueva reservoir.

Two tugboats are currently moving a vast array of 12,000 solar panels, the size of four football pitches, to their mooring on the reservoir.

Built by EDP, the country’s main utility company, on Western Europe’s biggest artificial lake, the shiny floating island is part of Portugal’s plan to cut reliance on imported fossil fuels whose prices have surged since Russia’s invasion of Ukraine.

Blessed by long hours of sunshine and Atlantic winds, Portugal has accelerated its shift to renewables. But even though the country uses almost no Russian hydrocarbons, its gas-fired power plants still feel the squeeze of rising fuel prices.

Miguel Patena, EDP group director in charge of the solar project, said on Thursday that electricity produced from the floating park, with installed capacity of 5 megawatts (MW), would cost a third of that produced from a gas-fired plant.

The panels on the Alqueva reservoir, which is used to generate hydropower, would produce 7.5 gigawatt/hours (GWh) of electricity a year, and would be complemented by lithium batteries to store 2 GWh.

The solar panels will supply 1,500 families with power, or a third of the needs of the nearby towns of Moura and Portel.

“This project is the biggest floating solar park in a hydro dam in Europe, it is a very good benchmark,” Patena said.

Solar panels mounted on pontoons on lakes, or at sea, have been installed in a range of places from California to polluted industrial ponds in China, in the fight to cut CO2 emissions.

Floating panels do not require valuable real estate and those on reservoirs used for hydropower are particularly cost effective as they can hook up to existing links to the power grid. Excess power generated on sunny days can pump water up into the lake to be stored for use on cloudy days or at night.

EDP executive board member Ana Paula Marques said the war in Ukraine showed the need to accelerate the shift to renewables

She said the Alqueva project was part of EDP’s strategy “to go 100 per cent green by 2030”, with hydropower and other renewables now accounting for 78 per cent of EDP’s 25.6 GW of installed capacity.

In 2017, EDP installed a pilot floating solar project with 840 panels on the Alto Rabagao dam, the first in Europe to test how hydro and solar power could complement each other.

EDP already has plans to expand the Alqueva project. It secured the right in April to build a second floating farm with 70 MW installed capacity.

Story Source: https://www.euronews.com/green/2022/05/09/biggest-floating-solar-park-in-europe-will-open-this-year-in-portugal

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