Solar and Energy Storage Project at a Monastery in Myanmar

1.Project Overview

The solar and storage project at a monastery in Myanmar aims to fully utilize solar energy resources to achieve green electricity usage while ensuring the safe and stable operation of the photovoltaic (PV), storage, and grid systems. This project not only helps reduce electricity costs but also improves energy utilization efficiency.

2.Configuration&Site Details:

[1] Photovoltaic Power Generation: 750kW

[2] Energy Storage System: 750kW/3MWh

[3] Traditional Load: 400kW

[4] Management System: Acrel-2000MG

[5] Power Input: The substation uses a 33kV incoming line and is equipped with Acrel metering instruments.

[6] Voltage Conversion: The storage system steps down the voltage to 0.4kV, which is then merged with the PV system, stepped up and connected to the 11kV grid. The storage and PV circuits are equipped with Acrel metering instruments and anti-islanding devices.

[7] Load Output: The load is supplied by 11/0.4kV step-down transformers, with 7 circuits, all monitored by Acrel metering instruments.

3.Project Highlight:

[1] Maximizing Solar Resources for Green Electricity: The project utilizes solar power generation, reducing dependence on traditional energy sources, aligning with green and environmental principles.

[2] Ensuring Safety of Substation, PV, and Storage Equipment: Advanced management systems and equipment are used to ensure the safety and reliability of the entire system.

[3] Maintaining Off-Grid Operation of Partial Load: Ensures the normal operation of part of the load even when disconnected from the main grid.

[4] Using Storage to Shave Peaks and Fill Valleys, Reducing Electricity Costs: The flexible use of the storage system smooths power demand and reduces costs during peak usage times.

[5] Preventing Excess Power from Feeding Back into the Grid: Ensures that excess power generated is not fed back into the grid, avoiding interference.

4.System Structure:

[1] Platform Layer: Acrel-2000MG, with a printer.

[2] Communication Layer: Anet gateway, switches.

[3] Device Layer: Meters, inverters, storage PCS, BMS, power quality, anti-islanding, ABB protection equipment

5.System Functions:

[1] System Homepage:

Homepage include a general view of site actual micro-grids power system situation. Energy consumption situation, carbon dioxide emisstion info, profit gain from control plan and new energy, weather station infor, power curve and etc.

[2] Profit Analysis:

Analysis about how much profit gained from peal-valley arbitrage strategy, new energy power generation profit and etc.

[3] Visualized Operation:

Providing topology according to actual site situation. Real-time data and status for you to realize a simple and visualized maintanence.

[4] Solar PV Monitoring: 

General monitoring for solar PV system including solar PV power generation and profit gained by it. Weather station infomation, voltage&current&power curve and etc.Grid-connected power quality monitoring and analysis.

[5] Wind Power Monitoring:

General monitoring for wind power system including wind power generation and profit gained by it. Weather station infomation, voltage&current&power curve and etc.Grid-connected power quality monitoring and analysis.

[6] ESS Monitoring:

General monitoring for ESS energy storage system including charging&discharging power, energy, status information. Also, the SOC cruve, PCS&BMS status could be all checked in Acrel-2000MG. Also, the opeartion mode could be changed between peak-valley mode, scheduled curve, demand control, etc

[7] EV Charger Monitoring: 

General monitoring for EV charger including charging energy, profit gain by EV charger. Also, the detail working status, voltage, current, charging amount of each EV charger could be checked.

[8] Power Quality Analysing:

Continuously monitor the power quality and reliability status of power system, including steady-state data such as voltage harmonics, voltage flicker, and voltage imbalance, as well as transient data like voltage sags/swells, voltage interruptions, and transient voltage data. Perform monitoring, analysis, and waveform recording of these parameters, and also monitor transient voltage and current events.

[9] Optimized Power Cortol:

Acrel-2000MG could set various control plan to realize optimized power operation for saving your money and make profit. Such as peak-valley arbitrage, max demand control and etc

6.Conclusion

Through this project, the monastery in Myanmar has not only achieved green electricity usage and reduced power costs but also improved energy utilization efficiency and system safety. The Acrel-2000MG management system played a crucial role in ensuring the efficient operation of the entire project.

7.Related Solution