Battery Energy Storage System

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The National Electricity Market (NEM) Landscape is Changing

As the world shifts towards sustainable energy sources, solar energy has emerged as a key player in mitigating the effects of climate change. However, with the rise in solar energy usage, the stability and reliability of the electrical grid encounter specific challenges. The intermittent and variable nature of solar power can cause fluctuations in grid frequency and voltage.

Business can Now Access the Wholesale Electricity Market

To maintain grid stability and reliability, it is essential to develop advanced strategies and technologies to manage the impact of solar energy on the grid. One solution is energy storage systems, which can capture surplus solar energy and supply it to the grid during periods of low solar output. This helps to stabilize the grid’s frequency and voltage. In return, businesses are financially incentivized which often result in fast return

Transformer Capacity vs Availability

Accessing the wholesale market Is not given to everyone as your transformer capacity dictates whether you will be granted grid access or not. This will be determined by your DNSP during the application process. Like solar, DNSP assess the application based on your transformer capacity and other already connected solar and battery storage systems – these are often first come first serve scenarios.

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Revenue Streams In Australia

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3 Revenue Streams for BESS in Australia

FCAS

FCAS is a process used by the energy market operator to maintain the frequency of the system within the normal operating band around 50 cycles per second. The regulator pays participant on as per event basis.

Peak Demand Reduction

By reducing power spikes, you can lower “peak power demand” charges and avoid paying for unused capacity, batteries can be programmed to release energy to your business when required.

Energy Arbitrage

Generate revenue is by charging the batteries when electricity prices are low (usually during off-peak hours) and then selling the stored energy back to the grid when prices are high.

Battery Storage Dominates FCAS Market

Graph

Battery storage is now confirmed to be the leading dominant in the provision of key services to the grid. From the latest Quarterly Energy Dynamics report from the Australian Energy Market Operator, it reveals that batteries took a 52 percent share in the frequency and ancillary services (FCAS) market in the 2nd QTR of 2024.

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FCAS Market Services: Contingency and Regulation

Group 91

Group 92

Contingency FCAS Market

Supports the grid after a major event (e.g., generator trips, transmission line failures).

Divided into Fast (6 sec), Slow (60 sec), and Delayed (5 min) services.

Provides reserves to restore balance and stabilize frequency.

Regulation FCAS Market

Continuously corrects supply-demand imbalances, keeping frequency at 50Hz.

Adjusts generation output in real-time, ensuring stability.

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Energy Arbitrage Focuses on Price Differences to Maximize Savings or Profit

Battery energy storage systems (BESS) generate revenue effectively by charging when electricity prices are low or negative and selling the stored energy back to the grid when wholesale prices are high.

According to Australian Energy Market Operator (AEMO), the National Electricity Market (NEM) has seen a 97% year-on-year increase in energy arbitrage revenues for BESS.

The grid price in the left graph is trending below $100 per MWh, turning negative around midday when solar power (PV) is supplying the grid. In the evening, prices surge due to high demand. Batteries can take advantage of negative pricing to charge and then discharge during peak times, generating significant revenue.

Group 221

Peak Demand Reduction = Reduce Peak Demand Charges

Company A

Draws constant power and spends around $960k in electricity per annum.

Their peak demand is 1200 KVA and most of the capacity is being utilised.

Their annual cost for demand charge is $144k which represents 15% of their bill.

Company B

Draws inconstant power and spends around $312k in electricity per annum.

Their maximum demand is also 1200 KVA but only a small portion of the capacity is being utilised.

Utilising a battery to shave these peaks demand events could save company B up to 115K per annum (37%) of their bill.

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Maximizing Value with Aggregators

Kuga provides value by tendering your project to aggregators, to ensure:

Lowest project set up cost
Lowest ongoing market participant costs
Highest % of revenue shared to our clients

Our selection process for your project:

Kuga helps you navigate through the complexity of choosing the best aggregators by narrowing down aggregators with their set up fees, ongoing fees, revenue shares and historical successes so that you can make informed decisions.

Ongoing support:

Whether you are an existing customer or new customer, Kuga consistently stay abreast of the competitive landscape to deliver the best value to you.

Product Overview

Our flexible energy storage solutions are tailored to meet the specific needs and preferences of our customers. They are managed using advanced optimization software powered by machine learning and artificial intelligence, ensuring superior battery performance, maximum savings, and additional revenue opportunities.

ZILO 233A AC RATED

A liquid cooling all-in-one commercial and industrial ESS, integrated with energy storage converter, battery, BMS, EMS, thermal management, power distribution, fire protection, etc. The safety design of the system ensures a better battery performance and longer service life. Multiple sets of cabinets can be directly connected in parallel for energy storage expansion.

Rated Capacity

233kWh

Max Output Power

110kW

Rated Voltage

233kWh

Cell Specification

3.2V 280Ah

Battery Type

LFP (CATL)

Ingress Protection

IP55

Cooling Method

Liquid cooling (PCS) / Liquid cooling (Battery)

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Capability Statement

Download our Capability Statement to read more on our company, our people, our capabilities and our projects.

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Check Our Latest Videos

Explore our recent projects and Youtube channel to see how we carefully execute our installations to meet the unique business requirements of our customers. From large-scale solar roof installations to LED lighting upgrades and solar battery storage systems, there’s no project too big or small for our team