BACKED BY A
20 YEAR WARRANTY
NO HEAT GENERATION OR THERMAL RUNAWAY
Chemical batteries produce heat during operation which, at a certain point, can become exothermic, meaning it burns at a temperature that is self-sustaining and extremely difficult to extinguish. Because WEST supercapacitor energy storage systems operate without creating heat, this risk of fire does not exist.
20 YEAR WARRANTY
Modules are scalable energy storage building blocks with an expected lifespan of 45 years. WEST supercapacitor energy storage systems far surpass the average lifespan of Li-ion solutions.
MULTIPLE CYCLES PER DAY
WEST supercapacitor energy storage systems are capable of more than two charging and discharging cycles per day. Many chemical battery warranties are voided by over-cycling or simply limited to one cycle/day or less.
ULTRA-HIGH EFFICIENCY
WEST supercapacitor energy storage is 97% efficient at the module level. Compare this to many Li-ion batteries that lose as much as 10% (in heat) in every cycle. Over time these Li-ion losses increase and become even more prohibitively expensive.
FAST CHARGING
WEST modules are capable of 30-40 minute charging, allowing them to address any energy storage need in the market. No chemical battery can compete with this performance (lead acid = 10-12 hours, Li-ion = ~4 hours)
DISCHARGE IN MINUTES OR MONTHS
WEST supercapacitor modules can discharge super-fast OR super-slow OR hold a full charge for years without leakage. WEST long duration energy storage suits the needs of all end-users.
100% USABLE CAPACITY
Many Li-Ion battery manufacturers tell customers they can use 100% of the storage. With chemical batteries this can only be achieved by either:
- Placing more than nameplate capacity into the system or
- Building significant degradation allowance into the warranty.
MINISCULE CAPACITY DEGRADATION
Proven in the field in extreme temperatures for 10 years without measurable degradation. Since this is electrostatic supercapacitor energy storage storage (energy stored as energy), instead of a heat-producing electrochemical reaction (energy stored in a chemical), there is no stress on the materials over time.
OPERATE IN EXTREME HEAT & COLD
WEST supercapacitor modules can operate in a wide range of temperatures, from -40ºF to +150ºF / -40ºC to +65ºC without experiencing damage. Li-Ion batteries will experience permanent damage at temperatures below -5ºC / 23ºF and above +45ºC / 113ºF.
VIRTUALLY NO MAINTENANCE
WEST supercapacitor modules need virtually no periodic maintenance. They monitor and protect themselves throughout their lifetimes. Every part or component can be repaired and replaced in the field.
COST EFFECTIVE
Due to WEST supercapacitor’s long design life, ability to cycle multiple times per day, and high round-trip efficiency, WEST energy storage delivers the lowest long-term cost of energy in the industry. Importantly, WEST storage systems last as long or longer than alternative off-grid or grid-tied system.
FLEXIBLE MODULAR DESIGN
WEST supercapacitor storage systems are designed to be expanded over time as your energy needs grow. Plus, our use of standard components makes maintenance a breeze.
Company Description
Headquartered in New York, Wright Energy Storage Technologies (WEST) is a company that designs and distributes advanced energy storage systems. Instead of relying on traditional chemical batteries (like the ones in your phone or electric car), WEST specialises in supercapacitors, which use electrostatic technology to store energy. They have a global footprint, boasting a 10-year track record with over 3,500 systems running and 50+ Megawatt-hours (MWh) installed across 39 countries.
Why It's Industry-Changing
The current energy storage market is heavily dominated by Lithium-Ion (Li-ion) batteries. While Li-ion is everywhere, it has significant limitations: chemical batteries degrade over time, are sensitive to temperature, and pose serious fire risks.
WEST is disrupting this by pushing the industry to "Go Beyond Lithium-Ion." By utilising carbon-based supercapacitors rather than chemical reactions, they are fundamentally changing how energy is stored. This allows for safe, high-capacity energy storage in environments where traditional batteries fail or pose a hazard—such as extreme climates of Australia or marine applications (like their integration with Hystream Yachts).
UL & CE Certification 48V (Now) (Medium Voltage December 2026)
Wright Energy Storage Technologies, Inc. (WEST) has achieved both UL and CE safety certifications—a major milestone that enables commercial deployment across the United States, European markets, and APAC. These certifications support a wide range of applications, including data centres, manufacturing, military, hospitals, schools, residential use cases, and more.
What sets WEST apart is its supercapacitor-based technology, which differs fundamentally from lithium-ion. Supercapacitors provide near-instantaneous charge and discharge, exceptional cycle life, and eliminate thermal risks associated with conventional battery chemistries. In addition, WEST’s systems deliver enhanced safety, longevity, and a lower total cost of ownership—addressing some of the most persistent challenges in grid-scale energy storage.
Achieving UL and CE certification not only validates the safety of WEST’s systems but also demonstrates that a fundamentally different approach to energy storage is ready for real-world deployment.
Why They Claim to be "The Best"
Based on their technology, WEST supercapacitors are superior to traditional chemical batteries for several key reasons:
- Unmatched Safety: They boast no thermal runaway. Because they don't rely on volatile chemical reactions, the fire risk associated with lithium-ion batteries is virtually eliminated.
- Extreme Durability: Their systems are designed to operate efficiently in extreme hot and cold temperatures, making them viable in harsh environments where chemical batteries would rapidly degrade.
- Superior Lifespan: They back their technology with a massive 20-year warranty. The units require virtually no maintenance and can handle multiple charge and discharge cycles per day without losing their ability to hold a charge.
- Maximum Performance: They offer 100% usable capacity (unlike lithium batteries, which typically shouldn't be drained completely to protect battery health) alongside ultra-high efficiency and incredibly fast charging and discharging speeds.
- Flexible & Modular: The systems can be scaled easily to fit different industrial, commercial, or specialized needs.
In short, WEST supercapacitors are the safer, longer-lasting, and more robust alternative to the standard lithium-ion batteries that currently saturate the market.
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Scalable, Reliable, Supercapacitor Energy Storage
WEST Summit Series, a stackable, modular energy storage system from Wright Energy Storage Technologies that utilizes advanced, non-chemical, electrostatic supercapacitor technology.
Key Highlights
- Exceptional Longevity: Designed for a 45-year lifespan and backed by a 20-year warranty.
- Safety First: Because it avoids chemical reactions, it has no risk of "thermal runaway" (fire hazard). It features dual-layer protection (Electronic SSR and Thermal DC Breaker) and proprietary EZPower™ technology for controlled power release, short-circuit detection, and unit imbalance control.
- Performance in Extreme Conditions: Operates reliably in temperatures ranging from -40°C to 65°C without requiring external heating or cooling systems.
- High Efficiency: Delivers >97% round-trip efficiency with the ability to charge and discharge rapidly.
- Modular & Scalable: Units are designed to be stackable to scale with your specific energy needs.
- Smart Monitoring: Integrated system monitoring is included to track performance.
Product Models
The series is available in three primary configurations:
| Model | Capacity | Max Cont. Current | Dimensions (mm) |
| 3THREE | 3.3 kWh | 100 A | 580 x 635 x 170 |
| 5ZERO | 4.95 kWh | 200 A | 580 x 635 x 245 |
| 6FIVE | 6.6 kWh | 200 A | 580 x 635 x 320 |
The system is highly versatile and intended for a variety of applications, including solar energy, backup power, mobility, grid-storage, and recreational use.
All models feature dual-protection safety (electronic SSR and thermal DC breaker) and carry UL810A and IEC62619 safety certifications.
WEST Alpine Series, a wall-mountable, modular energy storage system from Wright Energy Storage Technologies that utilizes advanced, non-chemical, electrostatic supercapacitor technology.
Key Highlights
- Exceptional Longevity: Designed for a 45-year lifespan and backed by a 20-year warranty.
- Safety First: Because it avoids chemical reactions, it has no risk of "thermal runaway" (fire hazard). It features dual-layer protection (Electronic SSR and Thermal DC Breaker) and proprietary EZPower™ technology for controlled power release and short-circuit detection.
- Performance in Extreme Conditions: Operates reliably in temperatures ranging from -40°C to 65°C without requiring external heating or cooling systems.
- High Efficiency: Delivers >97% round-trip efficiency with the ability to charge and discharge rapidly.
- Modular & Scalable: Units are designed to be stackable with unlimited parallel compatibility to scale with your specific energy needs.
- Smart Monitoring: Integrated IoT monitoring via Wi-Fi, accessible through a mobile app for real-time tracking of voltage, temperature, and health.
Product Models
The series is available in three primary configurations:
| Model | Capacity | Max Cont. Current | Dimensions (mm) |
| 3THREE | 3.3 kWh | 100 A | 349.5 x 586 x 320 |
| 5ZERO | 4.95 kWh | 200 A | 349.5 x 586 x 470 |
| 6FIVE | 6.6 kWh | 250 A | 349.5 x 586 x 621 |
The system is highly versatile and intended for a variety of applications, including solar energy, backup power, mobility, grid-storage, and recreational use.
All models feature dual-protection safety (electronic SSR and thermal DC breaker) and carry UL810A and IEC62619 safety certifications.
WEST Envoy Series, a medium-voltage, modular energy storage system from Wright Energy Storage Technologies that utilizes advanced, non-chemical, optimized supercapacitor technology.
Key Highlights
- Exceptional Longevity: Designed for a 45-year lifespan with a warranty ranging from 10 to 20 years depending on the model.
- Safety First: Because it avoids chemical reactions, it has no risk of "thermal runaway" (fire hazard). It features dual-layer protection (Fuse and Contactor) and proprietary WEST EZPower™ technology for controlled energy release, short-circuit detection, and unit imbalance control.
- Performance in Extreme Conditions: Operates reliably in temperatures ranging from -40°C to 65°C without requiring external heating or cooling systems.
- High Efficiency: Delivers >97% round-trip efficiency with ultra-fast charging and discharging capabilities.
- Modular & Scalable: A flexible, stackable modular design engineered for operational continuity, allowing for field serviceability without interrupting power.
- Smart Monitoring: Integrated system monitoring with Ethernet, Wi-Fi, and Bluetooth-LE connectivity, accessible via the WEST BMS App for iOS and Android.
Product Models
The series is available in three primary configurations:
| Model | Capacity | Discharge Rate |
| 1EIGHT | 1.78 kWh | 5 C |
| 3THREE | 3.3 kWh | 3 C |
| 5ZERO | 5.0 kWh | 2 C |
The system is specifically engineered for demanding environments, including data centres, EV charging, and grid-storage applications, where it serves as an ultimate choice for uninterruptible power supply (UPS) functionality.
While the Alpine Series uses an "electronic SSR and thermal DC breaker" as its dual-protection safety mechanism, the Envoy Series safety system consists of a Fuse and Contactor as its dual-safety protection. Certification is UL810A.
WEST Envoy Series (Series 10), a medium-voltage, modular energy storage system from Wright Energy Storage Technologies that utilizes advanced, non-chemical, optimized supercapacitor technology.
Key Highlights
- Exceptional Longevity: Designed for a 45-year lifespan with a warranty ranging from 10 to 20 years depending on the model.
- Safety First: Because it avoids chemical reactions, it has no risk of "thermal runaway" (fire hazard). It features dual-layer protection (Fuse and Contactor) and proprietary WEST EZPower™ technology for controlled energy release, short-circuit detection, and unit imbalance control.
- Performance in Extreme Conditions: Operates reliably in temperatures ranging from -40°C to 65°C without requiring external heating or cooling systems.
- High Efficiency: Delivers >97% round-trip efficiency with ultra-fast charging and discharging capabilities.
- Modular & Scalable: A flexible, stackable modular design engineered for operational continuity, allowing for field serviceability without interrupting power.
- Smart Monitoring: Integrated system monitoring with Ethernet, Wi-Fi, and Bluetooth-LE connectivity, accessible via the WEST BMS App for iOS and Android.
Product Models
The series is available in three primary configurations:
| Model | Capacity | Discharge Rate |
| 1EIGHT | 1.78 kWh | 5 C |
| 3THREE | 3.3 kWh | 3 C |
| 5ZERO | 5.0 kWh | 2 C |
The system is specifically engineered for demanding environments, including data centre's, EV charging, and grid-storage applications, where it serves as an ultimate choice for uninterruptible power supply (UPS) functionality.
While the Alpine Series uses an "electronic SSR and thermal DC breaker" as its dual-protection safety mechanism, the Envoy Series safety system consists of a Fuse and Contactor as its dual-safety protection. Certification is UL810A.
