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EnSync Inc. (ESNC)

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Ensync Energy systems, together with its subsidiaries, engages in the development, manufacture, and marketing of energy storage systems for utility companies, renewable energy generators, and commercial and industrial customers. Its energy storage systems are based upon its proprietary zinc-bromine rechargeable electrical energy storage technology.  

EnSync Energy Systems is enabling the future of electricity with advanced energy management systems critical to a global economy becoming increasingly reliant upon the expansion of renewable energy.


Whether part of the grid power transmission and distribution network, or behind the meter in commercial, industrial and multi-tenant buildings, EnSync technology brings differentiated power control and energy storage solutions to electricity-challenged environments. Our technologies also serve as the system level intelligence in microgrid applications, by seamlessly integrating multiple generation and storage assets to deliver power in remote and community level environments not served by the grid, or areas electing to use the grid secondary to microgrid assets. 


At a macro level, the least expensive and most reliable electricity is best accomplished with the ability to prioritize electricity from the grid, renewables and storage, by synchronizing each of these assets in real time and leveraging their respective value. At the micro level, the ability to monetize numerous applications on the customer side of the meter provides the ability to utilize almost any combination of applications possible, including supply response, time-of-use, frequency regulation, back-up power, demand charge clipping and numerous others, all to ensure the lowest cost electricity available at any given moment.  We optimize all macro and customer side of the meter resources to ensure delivery of the highest customer value electricity.  


In 2015, EnSync Energy began including power purchase agreements (PPA's) into its portfolio of offerings, enabling electricity savings for customers and providing a stable financial yield for investors. Headquartered just outside of Milwaukee, Wisconsin, EnSync is a global corporation with strategic relationships, including:

Meineng Energy, a joint venture serving the Chinese market and providing comprehensive supply chain and manufacturing capacity


Holu Energy, an energy systems project development company based in Hawaii serving the Pacific region


Lotte Chemical of South Korea, a joint development partner advancing storage technologies


Solar Power, Inc., a global renewables project developer leveraging EnSync technology via  a supply agreement and sharing multiple synergistic growth opportunities


Detailed Quote for EnSync Inc (ESNC)  
0.58   -0.0101 (-1.71%) Volume: 48.29k 12:51 PM EDT Sep 29, 2015
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Commercial & Industrial Buildings (C&I)

EnSync Energy Systems offers a revolutionary energy synchronization system that enables a dramatic reduction in the cost of electricity and increases the financial returns of distributed generation systems in the C&I market. Commercial and industrial buildings have become a major opportunity for distributed generation assets to create "net zero" buildings, introduce power purchase agreements (PPA's) and provide utilities with sources of energy in critical peak or critical load situations. EnSync is the only company that can provide complete C&I building energy storage and energy management systems that unlock opportunities to generate income today, as well as "future proof" the building for any additional applications and requirements that are realized throughout the life of the asset. This includes energy management and hybrid energy storage systems.


For the C&I market, EnSync has introduced Matrix and Agile Hybrid systems which are designed to:·      


enable distributed intelligence and active control of inputs and outputs inside buildings·        

allow a building to be connected to others in a micro grid·        

provide seamless connectivity to the utility for smart export on demand·        

deliver cash generation opportunities from a building's distributed energy systems.


Power Purchase Agreement (PPA)


EnSync is participating in several innovative Power Purchase Agreements that are based on electricity delivered through a variety of generating sources, but typically featuring solar generation, and often including battery storage to further the value and capability of solar power. 


A PPA is a financial agreement by which a development entity arranges for the design, permitting, financing and installation of a distributed generation/storage system on a customer’s property at little to no cost to the customer. The owner of the PPA sells the power generated to the host customer at a fixed rate that is lower than the local utility’s retail rate. This lower electricity price serves to offset the customer’s purchase of electricity from the grid while the PPA owner receives the income from these sales of electricity as well as any tax credits and other incentives generated from the system. PPAs typically range from 10 to 25 years and the developer remains responsible for the operation and maintenance of the system for the duration of the agreement. Based on the PPA contract terms, a customer may be able to purchase the system at some point within the contract period, extend the PPA, have the system removed by the PPA owner or choose to buy the solar energy system from the PPA owner. 


Benefits of PPAs to Customers 


No or low upfront capital costs: The developer handles the upfront costs of sizing, procuring and installing the solar PV and/or energy storage systems. Without any upfront investment, the host customer is able to adopt solar and begin saving money as soon as the system becomes operational. Reduced energy costs: PPAs provide a fixed, predictable cost of electricity for the duration of the agreement and are structured in one of two ways. Under the fixed escalator plan, the price the customer pays rises at a predetermined rate, typically between 2% - 5%. This is usually lower than projected utility price increases. The fixed price plan, on the other hand, maintains a constant price throughout the term of the PPA saving the customer more as utility prices rise over time.


Limited risk: The PPA Owner is responsible for system performance and operating risk.



EnSync’s utility-scale energy storage technology is the answer to the growing penetration of renewables on today’s power grid. Utilities are faced with providing cheaper, cleaner and more reliable power as we transition away from a coal-centric economy. EnSync systems improve power quality, smooth output from intermittent generating assets, help reduce emissions, defer transmission, distribution and substation upgrades, and reduce costs associated with traditional generating plants.
An integrated system that features zinc-bromide flow battery technology can be partnered with Matrix power controls to provide for longer energy discharge applications prevalent in utility scale applications.
EnSync’s utility-scale flow batteries offer high energy density, are environmentally friendly, and are manufactured as 20-year assets.  Multiple container units can be modularly interconnected and configured with EnSync’s inverter technology to deliver an end-to-end system for quick and simple installation. EnSync’s designs are easily transferable and portable with simple site permitting in places that can be constructed not always accessible by traditional generating sources.



Microgrids are localized grids that can disconnect from the traditional grid to operate autonomously and help mitigate grid disturbances to strengthen grid resilience, and can play an important role in transforming the nation’s electric grid.


Remote microgrids, in locations where utility power isn’t available, often use a combination of renewables, diesel generators and storage for their electricity requirements.


Resiliency, independence, environmentally friendly and cost-effective are key features of today’s microgrid environments, and EnSync has become the “go-to” enabling technology. 


EnSync’s revolutionary Matrix Energy Management System prioritizes and optimizes renewables, diesel generators and energy storage assets to reliably and cost-effectively power remote, completely off-grid applications, and grid-tied applications that can “island” from the utility during outages and still derive electricity from behind-the-meter generation and storage assets. 


Matrix Energy Management Systems are innovative in that they provided differentiated capabilities as compared to conventional inverter technology, such as: 

Active Energy Synchronization for any or all DC and AC Inputs and Outputs

Prioritization and Optimization of All Generating Assets without System Controllers and Complex Algorithms

Management of Every Power and Energy Storage Application and Asset in Simultaneous Operation

Modular, Scalable, Efficient and “Future Proof” Energy Management as a 20-Year Asset


Matrix Energy Management System

The Matrix Energy Management System is breakthrough technology as a “behind the meter” energy control system targeted specifically at the commercial, industrial and multi-tenant building markets. Matrix utilizes EnSync’s patented “Auto-Sync” DC-Bus Modular Controls that enable simple integration of all AC and DC system inputs, and automatically routes the generated electricity in the most efficient and cost effective manner, in or out of the building. Matrix is modular and configurable, designed to meet the building owner’s needs today, as well as providing a “future proof” solution for potential applications tomorrow. Matrix enables complete distributed generation asset-to-utility communication for “smart export” and is able to be clustered in a secure network as a set of assets that enable real-time spot market electricity sales. Serviceability is simple with “hot swappable” drawers that can be replaced without taking the entire distributed generation system off line. DC-DC, DC-AC, and AC-DC transformers and communications drawers are all configurable to the same universal architecture in either single or multiple Matrix cabinets.


EnerSection® Power & Energy Control


The EnSync EnerSection provides a single point-of-connection to all connected power sources and storage


Universal, modular design integrates any power input and output with any storage device via discrete power electronic ‘buckets’


Easily expanded or modified in the field; with no software reconfigurations

The EnerSection® power and energy control center is modular, and configurable.  Its architecture connects multiple AC and DC power sources directly to DC energy storage units with variable AC and DC power load outputs including grid-tied, grid-independent / off-grid capable inverters with four-quadrant active and reactive power control.  EnerSection power controls are ideally designed for outdoor use serving remote microgrid applications.

EnerSection Power and Energy Control

Inverters are ETL certified to UL1741 standards


Patented common DC bus seamlessly hybridizes multiple battery traits — fast response with long discharge bulk storage as needed


Up to 500kW AC power rating per wide temperature range -22°F to 122°F / -30°C to 50°C Additional AC and/or DC output ‘buckets’ for continuous, grid independent power supply to critical loads onsite


Optional EnSync’s Grid Isolation Device (GID) automatically provides both normal and back-up power supply with controls to isolate power to and from the grid supply, while connecting customer loads with onsite generation and storage during outages, then seamlessly reconnects to the normal grid operation when grid service is restored

Agile Hybrid Storage Series

Power and Energy applications in one integrated platform - Power Applications: PV ramp, frequency regulation, power quality - Energy Applications: Demand response, rate shifting, critical back-up power

Configurable for any building, any application requiring discharge time from seconds to > 8 hours

Controlled via a patented “Auto-Sync” DC-Bus

High power, frequent cycling applications served by best-in-class Li-Ion Chemistry

Li-Ion is managed within its optimum operating range for extended life

Hybridized solution unlocks additional value streams

Long duration, deep discharge applications met with 4th generation Zinc Bromide Flow Chemistry

System optimized for high performance, safety and longevity

Modular and scalable to meet requirements for a wide variety of applications and locations

Field Proven. Ability to perform in diverse operating environments

The Agile Hybrid Storage System is forward-looking technology that seamlessly combines a variety of storage units to meet a breadth of applications. EnSync’s Agile Hybrid Series is an industry-leading energy storage system optimized specifically for high performance, safety, longevity and ability to deliver both power and energy for all available behind-the-meter applications in commercial, industrial, multi-tenant and resort buildings.

The Agile Hybrid Series features EnSync’s flow battery which recently achieved third-party certification from a leading, globally-recognized test facility in China, and validates the battery achieved performance at or beyond design and company specifications. Along with our flow battery, the Agile Hybrid integrates complementary storage technology best suited for the balance of applications, which is often Lithium-ion batteries because it marries well with renewable firming and other short-discharge, high-power applications.


Agile Hybrid Storage Series

Power and Energy applications in one integrated platform - Power Applications: PV ramp, frequency regulation, power quality - Energy Applications: Demand response, rate shifting, critical back-up power

Configurable for any building, any application requiring discharge time from seconds to > 8 hours

Controlled via a patented “Auto-Sync” DC-Bus

High power, frequent cycling applications served by best-in-class Li-Ion Chemistry

Li-Ion is managed within its optimum operating range for extended life

Hybridized solution unlocks additional value streams

Long duration, deep discharge applications met with 4th generation Zinc Bromide Flow Chemistry

System optimized for high performance, safety and longevity

Modular and scalable to meet requirements for a wide variety of applications and locations

Field Proven. Ability to perform in diverse operating environments


Agile Flow Battery™


Stored Energy. Reliable Power.


EnSync’s energy storage technology increases the consistency and reliability of your power. 




GridStrong is EnSync’s leading static synchronous compensator that can solve a wide variety of power quality and voltage stability issues. GridStrong enables your facility to experience higher penetration of solar energy generation without degrading power quality, as well as help improve power quality in overloaded or areas at the edge of the grid.  Even in areas with bigger loads, like plug-in hybrid vehicles, GridStrong will allow you to increase your load. GridStrong is also a VAR generator capable of both inductive (importing VARS) and capacitive (exporting VARS) to the grid/load.


Applications and Features


High solar penetration areas

Heavy load residential areas

Long radial feeders

Congested distribution lines

High time of day loads or high random
loads – industrial areas, for example

Areas sensitive to loading

Conservation voltage reduction (CVR)

Volt/Var Optimization (VVO)



Pole mountable capability

Incorporates adjustable response time

Provides capacitance and inductance correction

Includes adjustable dead band and voltage control bands

Improves grid reliability by regulating and stabilizing voltage

Contains online (remote) control/monitoring and local indication


Lowest cost of ownership over a 20-year design life in bulk energy storage applications

Up to 7x expected service over life of lead acid in daily,100% capacity usage needs

5x energy density of vanadium redox flow battery designs

Integrated DC bus design requires no onsite wiring for power connections

Black-start capable with no external aux power input required 

Modular, redundant and scalable architecture from 50 kWh to 2 MWh or more from a single point of system connection

Wide ambient operating temperature range with no external structures or climate controlled enclosures required for outdoor siting (-22°F to 122°F / -30°C to 50°C)

No additional ventilation, fire suppression or spill containment needed for indoor locations 

Expandable from 50kWH to 500kWH in a single enclosure


Current Price
Bid Ask Day's Range
  • 1D
  • 1M
  • 2M
  • 3M
  • 6M
  • 1Y
  • 2Y
  • 3Y
  • 5Y
ESNC News: Current Report Filing (8-k) 03/12/2019 08:43:11 AM
ESNC News: Current Report Filing (8-k) 03/04/2019 05:16:40 PM
ESNC News: Current Report Filing (8-k) 02/21/2019 08:14:33 AM
ESNC News: EnSync Energy Systems receives Notices from NYSE American 02/21/2019 08:00:00 AM
ESNC News: Notification That Quarterly Report Will Be Submitted Late (nt 10-q) 02/14/2019 04:29:32 PM
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#1170   There was a court date today. Not sure Makemoneymonay 05/20/19 04:22:22 PM
#1169   Yea the trading patterns here are super suspicious. Makemoneymonay 05/14/19 08:21:16 PM
#1168   Never seem this before, MM-PAUL on the best Ecomike 05/14/19 09:42:29 AM
#1167   Yup. Wouldn’t be surprised to see this company Makemoneymonay 05/12/19 10:45:49 PM
#1166   Way too much invested by too many folks Ecomike 05/12/19 01:13:03 AM
#1165   And this is bullish, not hiding it. Ecomike 05/08/19 09:45:40 PM
#1164   All the sunk costs here in a company Ecomike 05/08/19 09:44:30 PM
#1163   I’m still pretty optimistic, but I was a Makemoneymonay 05/08/19 07:56:08 PM
#1162   Looking sweet here, time to buy more? Ecomike 05/08/19 03:48:51 PM
#1161   This company worth lots of money more than FROZENFLAME 05/03/19 02:13:08 PM
#1160   I like the chart odds here on a Ecomike 05/03/19 12:09:42 PM
#1159   Multiple, repeated, endless 2 and 3 share pair Ecomike 04/26/19 03:12:08 PM
#1158   Agree, bid been going up everyday too, holding FROZENFLAME 04/26/19 11:16:05 AM
#1157   $ESNC accumulation at the ask is and has Ecomike 04/26/19 11:11:49 AM
#1156   Agree, holding and waiting for some updates, I FROZENFLAME 04/24/19 03:30:55 PM
#1155   Impressive bounce, no dead cats here, LOL Ecomike 04/24/19 03:00:27 PM
#1154   Oh My! Not one but two huge ASSk Ecomike 04/24/19 02:53:32 PM
#1153   800K bid somebody collecting all the cheap shares . FROZENFLAME 04/23/19 03:04:14 PM
#1152   The 1 to 10 cent paint jobs should Ecomike 04/23/19 12:07:55 PM
#1151   ???? "1Q out lots of big name Investors Ecomike 04/23/19 11:50:04 AM
#1150   1Q out lots of big name Investors !!! FROZENFLAME 04/23/19 10:08:04 AM
#1149   Agree, book value was 15 cents I will FROZENFLAME 04/22/19 04:53:35 PM
#1148   I agree. Be a huge rally if indeed Ecomike 04/22/19 03:35:19 PM
#1147   I see two updates today. Battery recyclers invoices Ecomike 04/22/19 03:32:14 PM
#1146   I bet the shares end up retaining value... Makemoneymonay 04/22/19 02:04:16 PM
#1145   2s very possible today . FROZENFLAME 04/22/19 10:25:22 AM
#1144   Very thin L2 . FROZENFLAME 04/22/19 09:59:29 AM
#1143   Here is court info link. Werbe 04/19/19 07:35:20 PM
#1142   Sorry, I had and still have like 100 Werbe 04/19/19 07:22:00 PM
#1141   Thanks to my new favorite hubbervile poster, LOL. Ecomike 04/19/19 06:05:34 PM
#1140   Share Structure as of 11-13-18 Werbe 04/19/19 01:01:56 PM
#1139   40% up not bad specially before a long FROZENFLAME 04/18/19 04:22:41 PM
#1138   Nice close here today. Ecomike 04/18/19 04:00:56 PM
#1137   I don’t see the 200K ask anymore looks FROZENFLAME 04/18/19 11:12:23 AM
#1136   I think they hiding the big bids they FROZENFLAME 04/18/19 10:41:16 AM
#1135   Or got outbid and buried on L-2 Ecomike 04/18/19 10:28:33 AM
#1134   Wow looks like somebody reading this board the FROZENFLAME 04/18/19 10:00:27 AM
#1133   L2 showing 2 big orders waiting on the FROZENFLAME 04/18/19 09:54:44 AM
#1132   One thing I do know, is if they Ecomike 04/16/19 04:18:59 PM
#1131   Why would they liquidate a firm whose losses Ecomike 04/16/19 04:13:42 PM
#1130   Any thoughts on the preferred shares? https://www.marketwatch.com/press-release Makemoneymonay 04/16/19 12:57:35 PM
#1129   No convertible debt. OS is locked at 68 Mil. Ecomike 04/16/19 11:01:02 AM
#1128   I believe the A/S 100M and OS 68M FROZENFLAME 04/16/19 07:50:08 AM
#1127   what's the A/S here? janitor_unbound 04/15/19 10:24:32 PM
#1126   That’s crazy, I’m waiting for 5-10 million volume, FROZENFLAME 04/15/19 03:52:45 PM
#1125   $ESNC up 104.55% on a 1/2 mil shares Ecomike 04/15/19 03:22:00 PM
#1124   $6 dollars pad paint job !!! FROZENFLAME 04/15/19 02:11:13 PM
#1123   Something is coming 78% UP !!! FROZENFLAME 04/15/19 02:00:42 PM
#1122   Crazy thin $$$$ FROZENFLAME 04/15/19 01:55:38 PM
#1121   Maybe we will see some fireworks soon, L2 FROZENFLAME 04/15/19 01:42:19 PM