FACTS plays an equally effective role in improving the power system quality of

green energy plants especially in wind and solar plants. The rate

of penetration of green energy could be accelerated if we go for FACTS 

You might want to read about smart inverters, which also support active and reactive power control. 

Best,

Chanaka

Yes FACTs devices can do it. If you are interested you can read Dr. R.K. Varma's book on FACTs devices or look at some of his publications. 

Thank you sir.

FACTS are very quick responding power electronic devices having large ratings and they are used for voltage control which indirectly maintains the reactive power control in the transmission line and comparatively FACTS play an important role in both injection and absorption of reactive power