Kol-sinner energy co. Ltd. Is an environmentally friendly industrial enterprise engaged in solar energy applications, development and research, production and marketing of products, and has developed, inter alia, solar water heaters and heating projects. The company's main products are two major series: "molit sun" and "three star hewlett-packard". Not only does the company have a highly qualified pool of skilled solar energy professionals, but it also uses international production techniques, produces detection equipment, and works extensively with research institutes to increase the technological content of its products. All solar water heaters produced by the company use advanced international german multi-targeting, composite plating, vacuum, high temperature, whole glass collector tube technology, more heating and more sustainable use (15 years). The company strictly implements the iso 9001 international quality management system (iqms), and the technical content of the product has been tested at standard levels in the gas sector. Currently, companies have established marketing, service networks in major cities across the country, dedicated to the "moup sun" and "six star hewlett-packard". Solar energy concentrates on hot water, mainly for hotels, schools, hospitals and residential areas. The system requires automatic controls, automatic display of water temperature, water level, a 24-hour water supply, pipe cold water treatment, system pressure, remote control, etc. Currently, most formal manufacturers are able to design and produce user-compliant automated control systems in conjunction with the relevant units. Solar energy is used for heating projects and is less used because of the seasonal nature of solar energy itself. Current problems are due to differences in design options, the use of solar energy (heat intake) which is not the main basis for evaluation, and the fact that users are mostly price-based, which leads some manufacturers to speculate, lower solar heating areas, increase ancillary heating to meet user needs and ultimately harm consumers. Solar energy is integrated with architecture. This paper refers mainly to water heaters or collectors) which are well integrated with the structure of the building and achieve a harmonious overall appearance. It has the following characteristics: this would save construction costs and household secondary installation costs. 2. Thermal collectors in solar engineering are modularized and standardized, serialized and diversified. 3. The design, installation, commissioning and engineering acceptance of solar water heating systems shall implement the codes, norms and standards established by the industry. Solar energy can be integrated into buildings in a variety of forms, divided into sub-house water supplies, centralized water supplies, flat sheets by product form, full glass vacuum tubes, hot tubings (u tubes), etc., and villas, multi-layered, small or high-level structures by type of house. The integration of solar energy with public utility buildings, such as schools, hospitals and hotels, is not discussed here (simple in relation to ordinary dwellings) and focuses mainly on the current market difficulties associated with hot spot real estate。