What factors should be considered first in the future development of solar street lights?

The general principle of the design of the solar cell module power circuit light system is to determine the minimum solar cell module power and battery module capacity to minimize the initial investment under the premise of ensuring that the load power supply needs are met. For the system designer, every decision made during the design of a photovoltaic power generation system affects the cost. Due to inappropriate choices, the investment in the system can easily be multiplied, and it may not necessarily meet the usage requirements. In the design and calculation of solar street lights, the basic data required are: the geographic location of the site, including location, latitude, longitude and altitude, etc.; the meteorological data of the installation site, including the monthly total solar radiation, direct radiation and scattered Radiation, annual average temperature and maximum and minimum temperature, longest continuous rainy days, maximum wind speed and special meteorological conditions such as hail and snowfall. Meteorological data generally cannot make long-term forecasts, and can only be based on averages over the past 10 to 20 years. Adopt the current internationally popular photovoltaic system design principle of balancing the maximum amount of solar radiation received in winter and half years, that is, according to the requirements of balanced charging of solar street lamp battery components, the daily radiation amount on the component surface in summer and winter half years is equal, But at the same time, it is necessary to make the solar radiation of the module reach the maximum value as far as possible in the first half year of winter.