Nanoinvestor,
Installing Solar Power Plants is the business of Ujaas. However, it differs from Moser Baer:
1.) Moser Baer manufactures solar panels and has some wind farms, whereas so far Ujaas is following an asset light model incurring just opex as opposed to capex.
2.) Ujaas does more than just EPC - procures land, licenses and later helps sell RECs/fulfill PPA, carries O&M. They do this like a MF by buying plot of land and installing say 30 MW - then investors/SMEs can own a small share of this.
You are right in observing that Solar REC is the Indian version of Carbon Credit and that most of the solar modules are procured from China.