Green businesses are heading towards using renewable energy sources. Can we consider renewable energy a substitute for businesses or only a back up?

I believe that using renewable energy is the best choice and challenge even in business field and this opinion is appear on the long run ,but usage it depend on many factors like the site  position related to the sun ,hours of usage ,and the load and finally the alternative source in the night or sun set   

At first I think that the investment in the field of renewable energy is an excellent choice . With regard to the efficiency and hidden costs, Each type of renewable energy has thier own applications to achieve the desired profits .

For example,solar energy systems proved high reliability & huge profits in the supply of electrical power to cellular communication systems in distributed sites (on the condition that you have a good battery system) , and the solar systems is the best for street lighting .

All renewable energy systems have good chance where there are no electrical grid .

I think it is best business to invest because it has scope in it. Renewable market is slowly growing all over the world. Europe is leading in manufacturing business but it has future. It is on future horizon as well.So best for long term planning

I would depend on the solar based Cooling/ heating Conditioners compared to solar panel. Since solar panel will be a waste if you use it to power a normal AC/FCU.