What is private cloud and why might it not be an option for a small business?

The private cloud model includes of a computing network used exclusively by a single company or corporation. The hold up infrastructure can be find at the organization's onsite location or can also be hosted by an offsite cloud service provider. Private cloud might not be an option for small business because the cost of private cloud is so high because of its exclusivity and the enhanced level of services provided. also in private cloud  sometimes the contracted resources are under-utilized, which can waste precious capital that could have been better deployed elsewhere.