Upgrading and renovation of residential solar energy systems

Upgrade and renovation plan for residential solar energy systems

First, systematic assessment and planning

Resource assessment: Inspect the roof area, orientation, slope and surrounding obstructions to ensure that the solar equipment can receive sufficient sunlight. For flat roofs, it is recommended to install photovoltaic carports with an inclination Angle of 15° to 30°. For sloping roofs, attention should be paid to the material of the tiles and their load-bearing capacity. In gardens or lawns, photovoltaic carports can be built or ground supports can be installed, but it is necessary to avoid trees blocking the sunlight.

Demand analysis: Assess the daily electricity consumption or hot water demand of the household to determine the capacity of the solar system that needs to be upgraded and renovated. For example, the daily hot water demand of an ordinary household is about 100 liters, and it may increase by 30% in winter. The photovoltaic power can be calculated by dividing the average daily electricity consumption of a household by the average daily effective hours of sunlight.

Plan formulation: Based on the assessment results, develop a personalized upgrade and transformation plan, including equipment selection, system layout, installation location, etc.

Second, equipment upgrading and replacement

Solar panel upgrade: Consider replacing with more efficient and durable solar panels, such as bifacial solar panels, which can capture sunlight from both sides and significantly increase energy production. Meanwhile, the number of solar panels should be reasonably increased based on the roof area and electricity demand.

Inverter replacement: If the original inverter has insufficient capacity or is aged, it needs to be replaced with a larger capacity and more efficient inverter to meet the requirements of the upgraded system. The new inverter should have better power conversion efficiency and stability.

Energy storage system addition: Consider adding an energy storage system, such as lithium-ion or solid-state batteries, to store the excess electricity during the day and release it as needed at night, ensuring continuous power supply even during periods without sunlight. The battery capacity can be calculated based on the electricity consumption at night. For example, battery capacity (kWh) ≈ nighttime electricity consumption (KWH) ×1.5.

Third, system optimization and improvement

Intelligent control system: By introducing an intelligent control system and leveraging Internet of Things (iot) and artificial intelligence technologies, real-time monitoring and optimization of energy production can be achieved, thereby enhancing the efficiency and effectiveness of solar power generation systems. For example, utilize AI to analyze performance indicators, optimize panel positioning, and ensure maximum exposure to sunlight; Adjust the operation of solar panels in a timely manner according to the weather forecast.

Auxiliary heating system: For solar water heating systems, if the original auxiliary heating system is inefficient, it is advisable to consider replacing it with a more efficient auxiliary heating method, such as heat pump heating, to cope with special circumstances like rainy days or low temperatures in winter.

Pipeline and wiring optimization: Inspect and optimize the pipeline and wiring layout of the solar energy system, minimize pipeline length as much as possible, and reduce heat loss and power transmission loss. Ensure that the connections of pipes and lines are firm to avoid potential safety hazards such as water leakage and electric leakage.

Fourth, installation and commissioning

Professional installation: Hire a professional solar equipment installation company to install and debug the equipment, ensuring that the installation process complies with relevant standards and norms, and guaranteeing the safety and reliability of the equipment.

Debugging and Testing: After the installation is completed, conduct a comprehensive debugging and testing of the system to check the operating status and performance indicators of the equipment, ensuring that the system can operate normally and meet the design requirements.

Fifth, maintenance and management

Regular inspection: Establish a regular inspection system to inspect and maintain each component of the solar energy system, and promptly identify and address potential issues. For example, regularly clean the surface of solar panels to prevent dust and dirt from affecting heat absorption; Check whether there is any leakage of water or electricity in the pipelines and circuits.

Performance monitoring: Install a monitoring system to monitor in real time the power generation situation of the solar system, hot water supply situation, etc., to ensure the good operating status of the system. Through data analysis, adjust the maintenance strategy in a timely manner to improve the operational efficiency of the system.

Fault handling: Establish a fault handling mechanism. Once a system failure is detected, it can be dealt with promptly to reduce downtime and losses. At the same time, analyze and summarize the causes of the failure to prevent similar failures from happening again.