grid tied energy STORAGE
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ENERGY STORAGE: NRI's FINANCIAL ENGINEERING APPROACH
As the world’s utilities struggle to integrate higher and higher percentages of renewable energy into their generation portfolios through cultural and regulatory pressures, NRI launched its utility scale storage to assist. With over 40 years of engineering experience in the energy storage industry and with a broad range of environmental experience NRI pledges to retain our high standards for system quality while delivering a solution that satisfies the financial goals of our customer base.
NRI, having worked around the globe on storage projects, understands that no cookie-cutter model will satisfy the unique environment in which your utility operates. Local grid attributes, financial and regulatory constraints differ amongst the utility clients we have in different regions. In response, NRI has designed its energy storage systems around basic modes of operation allowing us to provide every utility its own unique profile. We’ve determined that our revenue stacking model when used in conjunction with the utility’s forecasting based on historical data is the most effective solution at identifying how to structure the BESS/DES operations. We’ve also recognized that historical data is not enough when dealing with systems over years of service in an ever-changing market environment. NRI has therefore integrated into its annual maintenance program an annual financial model review option for our utility clients to reconfigure the BESS/DES operation based upon new data inputs each year.
UTILITY-SCALE ENERGY STORAGE
MODULAR ENERGY STORAGE AT AN AFFORDABLE COST
NRI recently announced the development of its commercial and utility scale battery energy storage systems/distributed energy storage (DES) units with our large models ranging from .5MWh upwards to 20MWh.
These large scale BESS/DES units are designed in a modular fashion and are capable of performing specific stand-alone modes of operation or may be programmed to perform multiple modes of operation on a scheduled or signaled basis customized to the utility’s needs. NRI’s recent advances in the areas of utility revenue stacking enables us to work with our utility customers in the development of an operating model which not only serves their on-site power needs, but also takes advantage of potential revenue streams to assist in offsetting operating costs.
NRI BESS-DES solutions are designed to operate in a wide range of charge and discharge modes and through different battery chemistries, inverter combinations, and software controls the final design will reflect the goals your organization is trying to achieve. Whether your organization is concerned with power quality, peak load reduction, arbitrage, or deploying storage to avoid expensive infrastructure upgrades elsewhere, we’re here to model a solution just for you. The skilled engineering staff at NRI also designs and installs customized system enclosures for our clients needing to integrate their BESS/DES units into a more visually appealing structure.
Lastly, NRI recognizes that utility energy storage does not mean simply large-scale units. We believe energy storage deployed at the residential and commercial level still can have a benefit to the utility. Through the custom NRI Hive Mode of Operation available on NRI residential and commercial BESS units, we’re able to assist the utility in using multiple small storage devices across the local grid to perform a wide variety of functions. When speaking with NRI representatives, be certain to inquire about Hive Mode and how it may be beneficial to your firm.
COMMERCIAL ENERGY STORAGE
NRI's COMMERCIAL ENERGY STORAGE APPROACH
The team at NRI will design an energy storage solution that meets your businesses specific needs. We understand that each client we deal with has a unique set of load characteristics and/or financial goals they wish to achieve with energy storage. Our dedicated and experienced staff will work with you to model the system to achieve these goals in the most cost effective manner. The significant knowledge base our engineers operate from allows us to bring reliable solutions to you at an affordable price.Whether you are focused on demand charge reduction, seeking hours of reliable backup power for mission-critical applications, or simply wish to arbitrage energy prices in your region our team has the tested experience to assist you.
RESIDENTIAL ENERGY STORAGE
BENEFITS TO THE UTILITY & HOMEOWNER
The Residential Energy Storage System is a grid-tied battery storage system. It can be used with or without a PV (photovoltaic) solar array to provide a backup source of electricity for critical loads*. The benefit to the utility is their ability to reduce load on the grid (Load Shedding) during peak periods, by remotely commanding critical household loads to be supplied by the BESS/DES power system. The homeowner would be unaware of this transition. Battery energy could also be delivered to the grid on demand, providing grid support. The benefit to the homeowner is that, in the event of a storm or service related power outage, critical loads such as refrigeration and lighting are maintained by the BESS/DES. The homeowner may also use the system for peak load shaving or prioritizing renewable energy over grid energy (when used with PV) to reduce electric utility bills.
*Critical Loads may include things like refrigeration, heating systems, lighting, computers and telecomm equipment, water, medical equipment, etc. The number of critical loads and the length of time they can be supported by the BESS/DES is dependent on the BESS/DES size.
WITH OR WITHOUT PV
Without a PV component, during power outages, the battery supplies critical loads until the grid connection is re-established or the battery becomes discharged. The battery is recharged by the grid when it is restored or by generator backup if that option was provisioned.”
With a PV component, the system’s ability to support critical loads during power outages is extended depending on the size of the PV array and the amount of sunshine during the outage. For a load shedding event PV energy will either prevent the battery from discharging as much or contribute to recharging it after the event.