$**$Note : I am working on a project to use a renewable fuel for powering a village in india $.$

Q$.$ if a $1000$ MW electricity capacity coal plant uses $9000$ tonnes of coal per day how much would $30$ MW electricity capacity coal plant use per day

Q$.$ Is cost of coal cheaper then biofuel? EXAMPLE: for a $15$ MWe coal compared to a $15$ MWe biodiesel plant $($ soybean oil$)$ per year basis.

Q$.$ do biodiesel generation power plants require much more fuel in comparison to how much fuel coal plants require$($ eg$.$ To produce $15$ MWe$)$ yes or no

If NO: then is my calculations wrong of $($ I am using $150(100$ kw rating$)$ generators that annually use $3679200$ Litre$/$ year of biodiesel fuel $.($ Assuming price of $$1$ per litre fuel and $28$ litre fuel consumption per hour for $1$ generator$)$

Q$.$how much biodiesel at full Load does a biodiesel generator of rating of $100$ KW use $?($ is $28$ L$/$hrs$)$ correct?

Q$.$ If coal is much more expensive then biofuel $($ coal: $$117$ per ton $/$ biodiesel $=0\mathrm{.}55-1$$ cent per litre$).$ THEN Why for my project to design a $15$ MWe capacity biodiesel plant $($ which has $150$ biodiesel generators at $100$ KW rating. That requires $4200$L$/$hrs$,36792000$ Litre$/$year$)$ cost about $36$ million $ where as for a $15$ MWe coal plant which uses $98,550$ tonnes of coal per year I get total coal cost for full year only $$11$ million. $($ where as it is said that biofuels are cheaper then coal and equally efficient almost $*$Assuming coal rate at $117$$ per ton$)$ is it because any of my assumptions in regards to biofuel is high? Or is this correct if so plz tell me why if wrong plz point out my mistake