Hi Ayesha,

I would like to suggest to use HOMER software for your simulations. If you do not get it, I can help you about it.

thanks a lot i will try . Is it a freely available ?

You should use linear programming techniques using software like GAMS using the CPLEX solver. You can also use CVX in Matlab. The former is not free and the latter is.

Yes, you may have it on web. 

CPEX is the best

thanks a lot to all of you. i will try then send my feedback ..

Dear Ayesha

It is very simple to develop yourself, like in this paper we discuss the formulas for use of numerical optimization to determine the best combination of resources to accomplish a least cost response.

Discrete cogeneration optimization with storage capacity decision support for dynamic hybrid solar combined heat and power systems in isolated rural villages

https://www.researchgate.net/publication/303256411_Discrete_cogeneration_optimization_with_storage_capacity_decision_support_for_dynamic_hybrid_solar_combined_heat_and_power_systems_in_isolated_rural_villages

It may be interesting to your readers to see the economic benefits.

Gerro

Article Discrete cogeneration optimization with storage capacity dec...