Well, it is true in the case of Germany.

The net balance of avoided greenhouse gas emissions from the use of renewable energies in Germany in 2020,

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(Strom: Current; Wärme: Heat; Verkehr: Transport; Wasserkraft: Hydropower, Solarthermie: Solar energy, Geothermie: Geo thermal energy)

The total emissions from coal, gas, and oil were reduced in 2020 through the use of renewable energies avoiding around 227 million metric tons of CO₂ equivalents.

The largest share of this, 101 million tonnes of CO2 equivalents, was generated by wind power. In total, the electricity sector accounted for around 181 million metric tons of CO₂ equivalents.

In 2019 and 2020, an increasing displacement of electricity generation from hard coal and lignite due to higher CO₂ certificate prices and lower fuel costs for natural gas was observed.

In the heating sector, around 36 million metric tons of CO₂ equivalents were avoided, and for biofuels in the transport sector around 9.3 million t CO₂ equivalents were avoided.

The economic impetus from the operation of renewable energy plants (including biofuels) continued their upward trend, growing from 17.2 to 18.2 billion euros, driven in particular by a sharp increase in revenue from the sale of biofuels. As in the years since 2015, they thus exceeded years since 2015, they exceeded investments in new plants.

Source: umwelt bundesamt