pypsa-eur/data/override_component_attrs/links.csv

1	attribute	type	unit	default	description	status
2	bus2	string	n/a	n/a	2nd bus	Input (optional)
3	bus3	string	n/a	n/a	3rd bus	Input (optional)
4	bus4	string	n/a	n/a	4th bus	Input (optional)
5	efficiency2	static or series	per unit	1	2nd bus efficiency	Input (optional)
6	efficiency3	static or series	per unit	1	3rd bus efficiency	Input (optional)
7	efficiency4	static or series	per unit	1	4th bus efficiency	Input (optional)
8	p2	series	MW	0	2nd bus output	Output
9	p3	series	MW	0	3rd bus output	Output
10	p4	series	MW	0	4th bus output	Output
11	carrier	string	n/a	n/a	carrier	Input (optional)
12	lifetime	float	years	inf	lifetime	Input (optional)
13	build_year	int	year	0	build year	Input (optional)