Leveraging Cloud Computing, Virtualisation and Solar Technologies to Increase Performance and Reduce Cost in Small to Medium-sized Businesses Topics: Cloud Computing Architecture; Cloud Delivery Models; Cloud Deployment Models: Public/Private/Hybrid Cloud; Cloud Economics; Cloud Interoperability; Cloud Services; Virtualization Technologies In Proceedings of the 8th International Conference on Cloud Computing and Services Science CLOSER - Volume 1, 310-321, 2018 , Funchal, Madeira, Portugal