Book excerpt: This book offers a unique insight into the corporate health of energy companies in an evolving landscape of deregulation. Cutting across both historical and present-day situations, it demonstrates important elements vital to the success of energy companies coming out of a safe regulated structure and dealing with a new competitive environment. Targeted at corporate executives, energy professionals, the financial and investment communities, strategic planners and regulators, readers will find this resource helpful to understand how energy companies can meet the challenges of a competitive environment, what it will take to evolve into healthy energy companies, the impacts of deregulation and assessment of successful and unsuccessful strategies for energy companies, the role of technology in business/product reinvention and a successful business model, and the differences and similarities of electricity to other commodities-the challenges to generation, power delivery, environmental science and end-use sectors of the business.