Virtual Power Plant Market Size and Forecast (2020 - 2030): Global and Regional Share, Trends, and Growth Opportunity Analysis by Technology (Demand Response, Distributed Energy Resource Management, and Others), by Application (Residential, Commercial, Industrial, and Others), by Component (Software, Hardware, and Services) by Source (Renewable energy, Storage, Cogeneration), and by Region (North America, Europe, Asia-Pacific, Latin America, and Middle East & Africa)