Zinc-air + Lithium-ion Storage
Flexible energy storage in one package that is optimized for business applications.
Zinc-air + Li-ion battery hybrid energy storage systems are ideal for customers seeking resiliency, lower technology and energy costs, and access to grid service revenue streams.
Hybrid systems capitalize on the benefits and strengths of two (or more) complimenting components, and when integrated wisely, can deliver a 1+1=3 resultant solution. Zinc-air’s lowest-cost, deep-discharge/long-duration characteristics match the high-rate capabilities of more expensive Li-ion technology. This unique combination provides an ideal hybrid solution for the most demanding energy storage applications – and NantEnergy is the only company with this type of hybrid energy storage offering.
Hybrid Li-ion/Zinc-air energy storage systems deliver energy for short-, mid-, and long-term applications – a feat not achievable by any one technology.
Combining Li-ion batteries with long duration zinc-air batteries provides a superior ROI for the end-user by leveraging each battery format to work within its strengths. For instance, NantEnergy has deployed hundreds of Zn-air/Li-ion hybrid systems across the globe for village electrification applications; these remarkable hybrid systems deliver outstanding cost performance benefits as compared to any other solitary battery choice, such as lead acid, NiCds, or even pure Li-ion. Diesel fuel transportation logistics are extremely prohibitive for off-grid power projects, requiring 100% dependence on solar generation; our hybrid system is the perfect solution. The ultra-low $/kWh costs and long-duration Zn-air portion of the hybrid becomes the diesel surrogate, enabling extremely high (local) grid availability throughout the year. Any other battery equivalently sized to deliver this type of backup would be cost-prohibitive, yet our two-part hybrid delivers a two-part benefit: Extended duration, less cost.
Hybrid Li-ion/Zn-air energy storage systems deliver energy for short-, mid-, and long-term applications—a feat not achievable by any one technology. This innovative new system can address the power and energy needs of a wide range of customers; it also offers several synergies for those customers seeking resiliency, lower technology and energy costs, and seeking to capture grid service revenue streams.
Advantages of hybrid energy storage systems:
- Ability to operate under dynamic conditions and multiple use cases, without compromising system health.
- Reduction of total investment costs (relative to a single, pure-play technology), resulting from the decoupling of energy and power.
- Increase in total system efficiency by operating at algorithmically optimized points, resulting in less thermodynamic loss.
- Increase storage system lifetime due to reduction of dynamic stress on the system per cycle.
By choosing hybrid battery solutions, you are harnessing the clear advantages of Zn-air—the centerpiece of new distributed energy resource (DER) project developments—and gaining the most value out of all DER assets, both long- and short-term.
Powerful energy solutions for all
Commercial & Industrial
Slash your monthly electricity expenses and add system resilience with reliable, renewable power from NantEnergy.
Provide low-cost, reliable, renewable electricity to remote communities around the world.
Modernize your electrical infrastructure with a fully-integrated microgrid.
Our reliable, low-cost, clean technology is the ideal backup power solution for communication facilities and other critical telecom infrastructure.
Lower energy costs and access reliable backup power that works in any environment anywhere in the world.
Good for people, business and the planet
Powerless people now have power
Number of lead acid batteries replaced
CO2 Reduction in Metric Tons
Liters of diesel fuel that we’ve abated
How it works
Metal, Air, and Energy: How Zinc-air Works
NantEnergy’s groundbreaking zinc-air battery combines fuel cell technology with traditional solid-state electrode design. With performance and cost metrics surpassing all past battery space benchmarks, and an utterly unique design and architecture, this rechargeable energy storage device is unlike any other in the mainstream marketplace today.
Zinc-air batteries store and release energy using simple, reversible chemical reactions.
When electric power is available from any source – such as photovoltaic solar panels – that energy is fed into the battery system. The electrons from that source convert zinc oxide to metallic zinc (which remains in the system) and oxygen (which is released to the atmosphere). This effectively stores the electrical energy into the zinc metal as chemical energy, and the system is now charged and ready for service.
When it’s necessary to use the stored energy, the battery system converts the energy from the zinc into electrical energy by reversing the electrochemical reaction. The zinc is exposed to the natural oxygen in the atmosphere, which then triggers the zinc to give up the electrons it gained in the charging process. This oxidation recreates the zinc oxide, and the battery is ready to receive another charge.
While the process of using the reaction of zinc and air to produce energy is not new, typical zinc-air cells are only able to discharge; their ability to recharge and repeat the reaction is extremely limited, and makes their use in storage impractical. NantEnergy discovered how to enable zinc to retain its charge for prolonged periods of time, making it possible to repeat the charge and discharge cycle thousands of times without deterioration of the battery.
This breakthrough makes zinc-air highly practical for storage; it is safe and reliable, and now costs less than $100 per kWh to manufacture. This allows NantEnergy to compete effectively anywhere in the world, reducing dependence on costly and potentially harmful lead-acid batteries and fossil fuels.
Understanding Demand Charges
Commercial and industrial (C & I) businesses pay monthly utility energy and demand charges based on the amount of electricity in kilowatt-hours (kWh) consumed during the billing period. The energy charges are broken down into two categories: peak periods (typically between 9 a.m. and 9 p.m. Monday-Friday), and off-peak periods (typically between 9 p.m. and 9 a.m. Monday-Friday; weekends, and holidays).
The demand charges, which are measured in kilowatts (kW), are based on the highest level of electricity supplied at any given time during the billing period, depending on the time of day it’s needed by your business; demand charges can account for 30-70% of your total electric charges.
The NantEnergy storage system cuts expensive demand charges by predicting the daily energy demands for your business and instantly dispatching power from the energy storage system, replacing expensive grid power. When your energy demands increase, the system’s intelligent, predictive controls trigger a rapid power discharge to offset spikes, essentially flattening the peak and reducing—or even eliminating—the demand charges that drain your energy budget.
NantEnergy C & I software saves you even more through automatic energy arbitrage—charging the battery with the least-expensive off-peak power when needed, and storing it for use at peak times subject to demand charges. By selecting the right power source at the right time, our software lets your business maximize solar consumption and minimize overall energy usage during peak periods, reducing overall energy charges—and in some cases, qualifying your business for a lower electricity rate structure.
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