我們使用 Cookie 以允許我們網站的正常工作、個性化設計內容和廣告、提供社交媒體功能並分析流量。我們還同社交媒體、廣告和分析合作夥伴分享有關您使用我們網站的信息
HOME
FAQ
1.Which types of battery cells are used by RiTWIN?+
As a professional battery module manufacturer, RiTWIN Technology’s core strength lies in its battery expertise and extensive experience in multi-chemistry cell applications.
Ritwin has utilized a wide range of battery cell types, including:
l Li-ion Cells (Lithium-Ion / NCM / NCA)
l LFP Cells (Lithium Iron Phosphate)
l Lead-Acid Cells
l SIB Cells (Sodium-Ion Batteries)
l SSB Cells (Solid-State Batteries)
l LTO Cells (Lithium Titanate)
l Ni-MH Cells (Nickel-Metal Hydride)
l Alkaline Cells
Ritwin has utilized a wide range of battery cell types, including:
l Li-ion Cells (Lithium-Ion / NCM / NCA)
l LFP Cells (Lithium Iron Phosphate)
l Lead-Acid Cells
l SIB Cells (Sodium-Ion Batteries)
l SSB Cells (Solid-State Batteries)
l LTO Cells (Lithium Titanate)
l Ni-MH Cells (Nickel-Metal Hydride)
l Alkaline Cells
2.Common terminology in ESS+
l (SOC (State of Charge):
Indicates the remaining battery capacity as a percentage of its total capacity.
l SOH (State of Health):
Represents the battery’s overall health, showing the ratio of its current capacity and performance compared to a new battery (e.g., 90% SOH means 10% degradation).
l DOD (Depth of Discharge):
The percentage of energy discharged relative to the total battery capacity.
Deep discharges can shorten the battery’s lifespan.
l Cycle Life:
The number of complete charge–discharge cycles a battery can perform under specified conditions (often defined at a particular DOD).
l C-rate (Charge/Discharge Rate):
Defines the speed of charging or discharging relative to the battery’s rated capacity.
1C = fully charged/discharged in 1 hour
0.5C = in 2 hours
2C = in 0.5 hours
l BMS (Battery Management System):
The battery management system monitors voltage, temperature, and current, performs protection functions (overcharge, overdischarge, overheating), and manages cell balancing and communication.
l EMS, BMS, and PCS Relationship:
BMS: Manages individual cells and battery modules to ensure safety.
PCS (Power Conversion System): Controls DC/AC power conversion and bidirectional energy flow.
EMS (Energy Management System): The central control layer, coordinating BMS and PCS for optimized system operation.
Indicates the remaining battery capacity as a percentage of its total capacity.
l SOH (State of Health):
Represents the battery’s overall health, showing the ratio of its current capacity and performance compared to a new battery (e.g., 90% SOH means 10% degradation).
l DOD (Depth of Discharge):
The percentage of energy discharged relative to the total battery capacity.
Deep discharges can shorten the battery’s lifespan.
l Cycle Life:
The number of complete charge–discharge cycles a battery can perform under specified conditions (often defined at a particular DOD).
l C-rate (Charge/Discharge Rate):
Defines the speed of charging or discharging relative to the battery’s rated capacity.
1C = fully charged/discharged in 1 hour
0.5C = in 2 hours
2C = in 0.5 hours
l BMS (Battery Management System):
The battery management system monitors voltage, temperature, and current, performs protection functions (overcharge, overdischarge, overheating), and manages cell balancing and communication.
l EMS, BMS, and PCS Relationship:
BMS: Manages individual cells and battery modules to ensure safety.
PCS (Power Conversion System): Controls DC/AC power conversion and bidirectional energy flow.
EMS (Energy Management System): The central control layer, coordinating BMS and PCS for optimized system operation.
3.Where do the main benefits of energy storage come from?+
Main Benefits of ESS
l Peak Shaving and Load Shifting
Reduces contract capacity or peak demand charges by charging during off-peak hours and discharging during peak periods.
l Energy Arbitrage
Charges when electricity prices are low and discharges when prices are high to maximize economic return.
l Backup Power Supply
Enhances power reliability and prevents operational losses during grid outages.
l Participation in Energy Markets
Generates revenue through ancillary services such as spinning reserve and frequency regulation.
l Renewable Energy Integration
Addresses the intermittency of renewable sources and increases self-consumption of clean energy.
l Peak Shaving and Load Shifting
Reduces contract capacity or peak demand charges by charging during off-peak hours and discharging during peak periods.
l Energy Arbitrage
Charges when electricity prices are low and discharges when prices are high to maximize economic return.
l Backup Power Supply
Enhances power reliability and prevents operational losses during grid outages.
l Participation in Energy Markets
Generates revenue through ancillary services such as spinning reserve and frequency regulation.
l Renewable Energy Integration
Addresses the intermittency of renewable sources and increases self-consumption of clean energy.
4.What data are required for energy storage benefit evaluation?+
l Electricity Bills for the Past 12 Months
Including peak and off-peak consumption data and corresponding tariff rates.
l Load Profile Data
Recorded at 30-minute or 15-minute intervals, showing actual power demand variations throughout the day.
l Electricity Tariff Plan
The rate structure applied by Taipower, specifying the contracted demand and billing scheme.
Including peak and off-peak consumption data and corresponding tariff rates.
l Load Profile Data
Recorded at 30-minute or 15-minute intervals, showing actual power demand variations throughout the day.
l Electricity Tariff Plan
The rate structure applied by Taipower, specifying the contracted demand and billing scheme.
5.What is a “large electricity consumer”?+
Definition of large electricity consumers:
A Large Electricity Consumer refers to any user who has signed a power supply contract with Taipower and whose contracted demand is 5,000 kW (5 MW) or higher.
This category excludes government agencies, schools, hospitals, and other non-profit institutions.
The policy was officially implemented by Taiwan’s Ministry of Economic Affairs (MOEA) starting in 2021.
Obligations of Large Electricity Consumers:
l Compliance Period:
Large electricity consumers must fulfill their renewable energy obligations within five (5) years from the date of notification.
l Obligation Standard:
Each entity must install renewable energy facilities equivalent to 10% of its contracted capacity.
Example: A company with a 5,000 kW contract must install approximately 500 kW of renewable generation capacity.
Early-Bird Incentive Policy
l Entities that had already installed renewable energy systems before the policy announcement are eligible for up to a 20% deduction of the existing capacity.
l Completing the renewable obligation within three years grants an additional 20% reduction.
l Completion within four years qualifies for a 10% reduction.
Four Compliance Options for Large Electricity Consumers
l Install Renewable Energy Generation Facilities (e.g., Solar PV):
Required capacity = Contracted Capacity × 10%.
The system must be self-generated and self-consumed; it cannot sell electricity externally or feed into the grid.
l Install Energy Storage Systems:
Required capacity = Contracted Capacity × 10% × Minimum Supply Duration (2 hours).
The system must be used for self-consumption only and cannot participate in the electricity market or sell stored energy.
l Purchase Renewable Energy and Certificates:
Purchase certified green electricity and renewable energy certificates (RECs) such as T-RECs directly from licensed renewable energy suppliers.
l Pay Monetary Compensation:
If unable to comply through the above methods, the consumer must pay a compensatory fee, which will be allocated by the government to support renewable energy development.
Example Calculation:
Annual Fee = Obligated Capacity × (2,500 kWh per kW × Compensation Rate)
Typical rate ≈ NTD 4 per kWh (subject to official MOEA announcement).
A Large Electricity Consumer refers to any user who has signed a power supply contract with Taipower and whose contracted demand is 5,000 kW (5 MW) or higher.
This category excludes government agencies, schools, hospitals, and other non-profit institutions.
The policy was officially implemented by Taiwan’s Ministry of Economic Affairs (MOEA) starting in 2021.
Obligations of Large Electricity Consumers:
l Compliance Period:
Large electricity consumers must fulfill their renewable energy obligations within five (5) years from the date of notification.
l Obligation Standard:
Each entity must install renewable energy facilities equivalent to 10% of its contracted capacity.
Example: A company with a 5,000 kW contract must install approximately 500 kW of renewable generation capacity.
Early-Bird Incentive Policy
l Entities that had already installed renewable energy systems before the policy announcement are eligible for up to a 20% deduction of the existing capacity.
l Completing the renewable obligation within three years grants an additional 20% reduction.
l Completion within four years qualifies for a 10% reduction.
Four Compliance Options for Large Electricity Consumers
l Install Renewable Energy Generation Facilities (e.g., Solar PV):
Required capacity = Contracted Capacity × 10%.
The system must be self-generated and self-consumed; it cannot sell electricity externally or feed into the grid.
l Install Energy Storage Systems:
Required capacity = Contracted Capacity × 10% × Minimum Supply Duration (2 hours).
The system must be used for self-consumption only and cannot participate in the electricity market or sell stored energy.
l Purchase Renewable Energy and Certificates:
Purchase certified green electricity and renewable energy certificates (RECs) such as T-RECs directly from licensed renewable energy suppliers.
l Pay Monetary Compensation:
If unable to comply through the above methods, the consumer must pay a compensatory fee, which will be allocated by the government to support renewable energy development.
Example Calculation:
Annual Fee = Obligated Capacity × (2,500 kWh per kW × Compensation Rate)
Typical rate ≈ NTD 4 per kWh (subject to official MOEA announcement).