Against the backdrop of global energy transition and increasing demand for environmental protection,
household solar energy storage projects have emerged.
The project aims to utilize solar power generation and store electrical energy through an energy storage system for daily household use or backup.
With the continuous advancement of photovoltaic technology and the reduction of energy storage costs, household photovoltaic energy storage systems
have become more economical and practical.In addition,the support and subsidies of relevant government policies have further promoted the popularization
and development of household photovoltaic energy storage projects.
1、Introduction to the principle of photovoltaic power generation
1. Photovoltaic effect
The phenomenon where light shines on semiconductor materials and generates
a photo induced electromotive force,thereby directly converting light energy into electrical energy.
2. Photovoltaic cell module
Composed of several photovoltaic cells connected in series or parallel,
it is the core part of a photovoltaic power generation system.
3. Classification of Photovoltaic Systems
According to the application scenario and scale,it can be divided into off grid,
grid connected,and hybrid types.
2、System design principles and operation
1. Select appropriate battery components,installation and fixing methods, and design the optimal installation angle based on
the installation site and installation conditions;
2. Design photovoltaic arrays in series and parallel based on meteorological data at the installation site;
3. Lightning protection design for photovoltaic arrays;
4. Design of DC busbar for photovoltaic array;
5. Select and design inverters based on the capacity and installation characteristics of each photovoltaic array;
6. Photovoltaic grid connection point system access design,including grid switch cabinet design, metering, monitoring design,
and anti backflow protection system design;
7. Design of monitoring, communication,and remote data transmission for grid connected power generation systems;
8. Selection and laying design of electrical cables for the system;
3、System Connection Diagram
(1) PV photovoltaic input
(2) Inverter supplies power to AC loads
(3) Using lithium batteries to power loads
(4) Lithium battery storage capacity
(5) Charging batteries or supplying power to loads through the power grid
(6) Real time monitoring of various data
System configuration
4、Installation and commissioning of rooftop photovoltaic system
1. Preparation before installation
Assess the load-bearing capacity,orientation,and tilt angle of the roof,as well as the local lighting and climate conditions.
2. System layout design
Based on the actual situation of the roof, plan the arrangement and installation location of photovoltaic modules reasonably.
3. Installation and construction process
Including bracket installation, battery component installation,electrical connection,lightning protection grounding,and other related processes.
4. System debugging and acceptance
After installation, perform system debugging to ensure that all performance indicators meet the requirements and conduct acceptance.
5、Selection of photovoltaic grid connection method
Electricity grid connection mode,spontaneous self use mode,
mixed mode
6、Operation and maintenance management and troubleshooting
7、Photovoltaic panels and roof brackets
Solar photovoltaic panel,color steel tile roof bracket,
concrete roof bracket
8、Composition of household energy storage system
Battery energy storage system
Using high-performance lithium batteries as energy storage media has advantages such as high energy density and long lifespan.
Energy Conversion System
Including inverters, rectifiers, and other equipment to achieve AC/DC conversion and voltage regulation of electrical energy.
energy management system
Real time monitoring, scheduling,and optimization of household energy storage systems are achieved through intelligent control algorithms.
Security protection system
Equipped with multiple protection functions such as overcharging,overdischarging,and overheating,ensuring the safe
and reliable operation of the energy storage system
9、Advantages and characteristics of energy storage technology
Efficient and energy-saving
Household energy storage systems can effectively improve energy utilization efficiency and reduce energy waste.
Environmental protection and emission reduction
By storing and utilizing renewable energy, the consumption of fossil fuels can be reduced, thereby lowering carbon emissions.
Flexible and convenient
Home energy storage systems can be customized according to user needs to achieve personalized energy management.
Economical and practical
With the advancement of technology and the reduction of costs, the cost-effectiveness of household energy storage systems is becoming increasingly high.
十、Product Introduction
Product Introduction 1
5KW high-power hybrid solar system
l The system uses lithium batteries to store solar energy and can be connected to the grid to selectively utilize grid power.
l The system prioritizes the use of photovoltaic power supply, with any shortfall provided by batteries.
l When the battery is low due to poor lighting or excessive load consumption, the system can automatically switch to grid power supply.
Product Introduction 2
550W solar monocrystalline silicon photovoltaic panel
Product Introduction 3
Stackable household energy storage system
Intelligence
★ Support emergency power supply, support three-phase imbalance, and seamless off grid switching
★ Flexible communication method, supporting WIFI/RS485
Good battery
★ The battery module can be stacked and expanded to 4-6 units, and can be flexibly adjusted
★ Stacked installation layer by layer, saving installation time and cost
Efficient power generation
★ Sleep mode with extremely low self consumption
★ Maximum efficiency of 98.2%, intelligent MPPT algorithm, tracking efficiency up to 99%
Security
★ Adopting high safety performance lithium iron phosphate battery cells
★ High power quality, non interfering with electrical equipment, ultra-low radiation
Product Introduction 4
Wall mounted household energy storage system
Product Introduction
The battery system mainly provides power storage for residential solar energy systems,
At the same time, the battery system can optimize the use of electricity, ensuring the effective operation of the entire household energy storage system.
Its comprehensive LCD information display screen and easy-to-use buttons facilitate user management of the battery system.
Product Features
1. The system adopts high-quality lithium iron phosphate power cells,which bring better product performance and reliability
2. Each battery module unit is equipped with an independent high-performance BMS system for scientific management of battery cells
3. LCD screen displays various battery statuses
4. The battery module unit supports parallel connection for expansion
5. Support multiple inverter communication matching
6. The battery module adopts a wall mounted design, which is easy to install
7. Widely used in various application scenarios such as homes, shops, offices, etc
Product Introduction 5
Rack mounted household energy storage system
Product Introduction
The battery system mainly provides power storage for solar energy systems in homes,shops,and offices,
At the same time,the battery system can optimize the use of electricity and ensure the effective operation of the entire energy storage system.
Product Features
1. The system adopts high-quality lithium iron phosphate power cells, which bring better product performance and reliability
2. Each battery module unit is equipped with an independent high-performance BMS system for scientific management of battery cells
3. The battery module unit supports parallel connection for expansion
4. Support multiple inverter communication matching
5. The battery energy storage module adopts a standard 19 inch rack mounted design, which is easy to install
6. Widely used in various application scenarios such as homes, shops, offices, etc
