Grid-tie Solar System
Grid-tie Solar System is a solar system that is connected to the national grid. With Grid-tie Solar System, household customers can benefit not only from saving on the monthly electricity bills, but also have additional income through selling energy to EVN. Due to increasing electricity demand, EVN's electricity prices will increase every year. Especially in sunny areas with high radiation.
Market Demand

 - For highly electricity-used consumers during the day, such as households, offices, factories, businesses, ...

- Especially, households with electricity bills of 1 million VND/month or more can save 30% - 50% of monthly electricity bills.

- For customers who want to earn passive income from selling electricity to EVN every month.

Application and working principle

Application: 
 - Rooftop solar system for households connected to the grid or with the energy storage system.
 - Grid-connected solar system for factories, factories, and businesses.
 - Solar Systems for offices and buildings.
 - Grid-connected solar power for hospitals and schools.
 - Solar Systems for supermarkets, commercial centers.
 - Also widely used in railway stations, bus stations, airports...

topology and working principle:
 - Solar energy is absorbed directly through photovoltaic cells from solar panels, creating DC current.
 - Through the grid-tied inverter (DC/AC inverter on the grid), the DC current is converted into AC, which has the same frequency and phase as the national grid so that it can connect to the grid.
 - These grid-tied inverters are programed to automatically find the Maximum Power Point Tracker MPPT  of the panels, in order to optimize the power received from solar systems.
 - The synchronization of national grid power and solar power source will be conducted automatically, in which solar power is prioritized to supply the load.


- In details:
When the solar power generated equals the load capacity, it will consume all the electricity of the solar power system.
 - When the load capacity is greater than the solar power generated (even at night, when the solar energy system does not generate electricity), the load will consume electricity from the grid.
 - When the load capacity is smaller than the solar power generated, the excess electricity will be sold to the grid through the electric meter and recorded by the 2-way meter for EVN.
 - The system only works during the day (almost 100% dependent on sunlight), so the system will hibernate at night and return to normal operation the next day when it is sunny.
 - The grid-tied inverter has the function of automatically disconnecting the power when there is a power outage from the grid, halting supply to the load to ensure technical safety when the power grid is being repaired.
 

 
Products included
- Solar Panels.
- Grid-connected DC-AC Inverter.
- 2-way meter ( National Grid Agency will buy surplus electricity from the solar system) “Decision 13/2020/QĐ-TTg 2020 | INCENTIVES FOR DEVELOPMENT OF SOLAR ENERGY IN VIETNAM
- Trusses, brackets, wires, accessories.
- smart monitoring technology through smartphone.
Pros and cons

- Pros :

+ The system does not use power storage (battery) so initial investment and maintenance costs are low. Easy to operate, upgrade and expand the system.
+ Long lifespan of the solar panels, the peak output capacity of the panel is warranted for 25 years;
+ Save electricity costs, eco-friendly;
+ The system automatically stops working in case of power grid failure to ensure safety for the grid and users;
+ The grid-tie solar power system is an effective energy-saving solution for households and businesses.

- cons: When it is cloudy, the system will have to use power from the grid, or if there is a power outage, the load will have no other supply source.

 
Technical Requirements:

Calculate and select equipment in accordance with the needs of the customers: power consumption, load capacity, auxiliary load capacity (back-up load), back-up load power using duration, ...
- Ensure compatibility between devices: between panels and inverter.
- Set proper operating mode to get the highest economic efficiency.

 

If you need more information on the "grid-tied solar system with storage " solution or related products, please contact us immediately.

About us

INS Energy Company (former name is Solar INS company), full name is INS Energy Technology Company Limited, was established in 2018.

With the goal of becoming a leading company in providing solutions and products in the field of clean and renewable energy, INS Energy has built a team of highly qualified, experienced, technicians and engineers that ready to meet the needs of customers in the most comprehensive and affordable way.

Over 3 years of establishment and development, INS ENERGY's energy products and solutions have been present in many large projects. We have also developed a business cooperation network with more than 100 Dealers / Distribution & Installation Partners nationwide.

 
Package Products
A company with a highly specialized technical team is also an important factor to ensure the best support for your business when cooperating in this high-tech, multi-technical field.
3 kWp
  • 8 450W solar panels
  • 3kW single-phase inverter
  • Integrated electrical cabinets
  • Installation Accessories & Cables
 
Get a consultation and quote
5 kWp
  • 12 450W solar panels
  • 5kW single-phase inverter
  • Integrated electrical cabinets
  • Installation Accessories & Cables
Get a consultation and quote
10 kWp
  • 20 450W solar panels
  • 5kW single-phase inverter
  • Integrated electrical cabinets
  • Installation Accessories & Cables
 
Get a consultation and quote
Why you should partner with a reputable supplier?

Currently, there are many products from different brands, from many large and small importers and distributors in the solar power market. There are many suppliers who choose low-end products or compete on price to get the market. However, the lifespan of a solar system can be up to 30 years, so you need to choose a reputable distribution company that has a long-term business strategy in the field of renewable energy to cooperate, to ensure product warranty issues when there is a problem.

A company with a highly specialized technical team is also an important factor in ensuring the best support for your Agents & Partners when cooperating in this high-tech, multi-technical field.


Products included in the solution:
Solar panels, Hybrid inverters, Storage batteries, Installation accessories such as rail, clamps, truss brackets, electrical accessories such as cables, lightning protection devices, electrical cabinets
GOODWE MS Series 5-10kW | Single-phase | 3 MPPTs
The MS series is GoodWe's answer to the demand of the expanding residential solar segment. The single-phase 5-10kW model with 3 MPPTs is a powerful and versatile inverter. This product is truly a champion in terms of DC oversizing ability that can go up to 200%, far surpassing the competition and helping it to achieve 110% AC overload. With a start-up voltage of only 80V, the MS products can generate current earlier than comparable products, achieving a high efficiency of 97.7%. This inverter is compatible with double-glass panels and features its peak current input, which can reach 12.5A per PV string. Due to its lightweight, it does not take much effort to install.
GOODWE NS SERIES 1-3KW | Single-phase | 1 MPPT
 GoodWe's NS series inverters use advanced technology in solar photovoltaic energy conversion. These products are ideally suitable for new housing projects or small family installations, with power ranging from 1 to 3kW for installations with as small as 3 solar panels. Comprehensive MPPT technology, software, and hardware technologies are guaranteed for maximum longevity.
GOODWE XS Series 0.7-3KW | Single-Phase | 1 MPPT
The new XS series from GoodWe is a micro solar inverter specially designed to bring convenience, quiet operation, and high efficiency to households. Its power range is ranging from 0.7 kW to 3.0 kW and its most outstanding features are lightweight, only 5.8kg and extremely compact size, equivalent to an A4 size sheet of paper, so very easy to carry and install. Notably, it gives  a 130% DC oversizing input and can achieve maximum European efficiency of 97.2%. The communication options on this inverter are compatible with both LAN & WIFI.
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