Solar Thermal Market Size and Forecasts (2020 - 2030), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage: By Collector Type (Evacuated Tube Collector, Flat Plate Collector, Unglazed Water Collector, Air Collector); Type (Thermosiphon Solar Heating Systems, Pumped Solar Heating Systems); Application (Domestic Hot Water Systems, Large DHW Systems, Solar Combi Systems, Others) , and Geography (North America, Europe, Asia Pacific, and South and Central America)