The economy and finance ministry declined immediate comment.
"So the ruling could have a negative impact on economic growth," the source added.
Last month, the economy ministry predicted 1.3% growth for next year.
Although the Greens want additional spending, the Free Democrats (FDP), which heads the finance ministry, reject additional debt and higher taxes.
"There is a clear political decision in favour of Intel and nothing has changed yet," said an economy ministry spokesperson on Friday.
Persons:
Liesa, Olaf Scholz's, Christian Lindner, Chancellor Olaf Scholz's, Joerg Kraemer, Robert Habeck, Habeck, Friedrich Merz, Christian Haase, Commerzbank's Kraemer, Maria Martinez, Andreas Rinke, Holger Hansen, Christian Kraemer, Madeline Chambers, Matthias Williams, Clarence Fernandez, Gerry Doyle, David Evans
Organizations:
REUTERS, Rights, Thursday, Greens, Free Democrats, Transformation, Intel, U.S, Christian Democratic Union, ESF, Economic, Stabilization, Thomson
Locations:
Berlin, Germany, Europe's