Another classification method of classification development prospects can be divided into two categories: qualitative prediction and quantitative prediction. For corporate marketing managers, the corporate prediction methods that should be understood and mastered are:

(1) Qualitative prediction method

The qualitative prediction method is also called an intuitive judgment method, which is a method often used in the development prospects of the residential energy storage system. The qualitative prediction mainly relies on the information, experience and comprehensive judgment capabilities of prediction personnel to predict the future status and development trends of the market. Such prediction methods are simple and easy to do, especially suitable for those difficulty in obtaining comprehensive data for statistical analysis. Therefore, the qualitative prediction method is widely used in the development prospects of the energy storage system of the residential. The qualitative prediction method also includes: Expert Meeting Law, Delphi Law, Sales Persons' Opinions Collection Law, and customer needs to investigate the law.

(2) Quantitative prediction method

Quantitative forecasting is to use relatively complete historical data to use mathematical models and measurement methods to predict the future market demand of the residential energy storage system. Quantitative predictions are basically divided into two categories. One is the time sequence mode, and the other is causal relationship mode.