Probe Corporation CEO Frank Rovelli offers insight on the right energy storage solution – lithium or graphene – for your business
As businesses in South Africa increasingly turn to hybrid solar solutions to remain operational during power outages, there is high demand for reliable and efficient energy storage. However, with many options on the market, selecting and obtaining an optimal, reliable battery solution can be challenging. With its Probenergy division focused on alternative energy solutions, Probe Corporation leverages over 60 years of expertise to offer advanced battery solutions.
When considering high voltage systems, it’s important to understand both the type of battery technology available and the financial return on investment that different technologies offer to select the right option for a business.
Selecting the appropriate battery solution involves navigating several challenges, including performance, economic viability, safety, environmental impact and availability to ensure the chosen technology aligns with business needs. Choosing the right battery requires businesses to consider specific application requirements carefully. Evaluating the expected lifespan and performance of the battery in specific applications plays a significant role in the decision-making process. It is also crucial to ensure that the chosen battery technology integrates seamlessly with existing systems and infrastructure.
PERFORMANCE AND SAFETY
Lithium-based (LiFEPO4) and graphene-based batteries, also known as solid-state supercapacitor batteries, have emerged as leading contenders in response to the growing demand for more efficient energy storage systems. While each technology presents unique advantages and challenges making them suitable for different applications, lithium-based batteries remain a go-to solution for a wide range of applications due to their affordability, proven performance, wide availability and reliability. However, solid-state supercapacitor batteries now offer superior conductivity, much longer life cycles, higher energy density and enhanced safety features.
The charge/discharge rates on the solid-state supercapacitor battery are unparalleled. These batteries are also safer than lithium. They are more sustainable as they are carbon-based and recyclable, which lithium batteries are not.
ECONOMIC VIABILITY
Assessing the initial capital expenditure (Capex) versus the long-term return on investment (ROI) is vital for determining the economic viability of an energy storage solution. The initial Capex spend might be more palatable with lithium options due to their lower cost. However, solid-state supercapacitor batteries, while more expensive upfront, offer longer life cycles, reducing long-term costs. For instance, lithium batteries typically last 5–6 years, whereas graphene batteries can last up to 20 years if maintained correctly.
Calculating real ROI involves considering not just the upfront costs, but also the longevity, efficiency and maintenance requirements of the batteries. While initial Capex spend may appear to be more palatable with lithium options due to their lower cost, when one considers the performance, round-trip efficiency, life cycles, losses and degradation associated with both options, solid-state supercapacitor batteries are a more cost-effective solution over time, and the initial premium is not as significant. However, due to budget constraints, many clients still opt for lithium batteries and we ensure that we always have excellent options available.
AVAILABILITY
Businesses in South Africa face the additional challenge of the availability of particular solutions, as some solutions may not be available for several months. Probenergy has been working to ensure a steady supply of batteries to meet operational demands amid global supply chain disruptions, including embarking on local assembly with the Bluevolt range.
RECOMMENDED OPTIONS
Energy storage options provided by Probe include new Probe High Voltage (HV) lithium-ion batteries, MaxLi lithium batteries and Bluevolt lithium batteries. Probe has partnered with Enerbond to bring leading solid-state supercapacitor batteries to the market.
Choosing the right energy storage solution enhances operational efficiency for sustainable growth. With expert advice, businesses can make informed decisions to optimise their energy storage investments.
