DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/4h8j3c/investment) has announced the addition of the "Investment Opportunities in the Global Energy Management Systems Industry" report to their offering. Convergence of service oriented EM companies and technology producers will disrupt the EM market. Supportive regulations, emerging smart cities, and rising energy costs will usher in a high growth era for EM services. Shorter payback periods and supporti