• • • UPS + STANDBY POWER • • •
provided UPS – comprehensive across the whole site – protecting the client from approximately four power disruptions each year and making the project payback period less than 24 months. For another client, in the energy-intensive glass
industry, Grid supply disruptions caused kiln firing cycles to fail, wasting production time and energy, and damaging product. Installing a new 250kW BESS along with a 500kVA voltage optimisation system means the company, Parkinson Spencer Refractories, is now protected with site-wide UPS, and is saving between £20,000 and £100,000 for each incident of disruption it now avoids. A BESS stores renewable, on-site generated energy – vital as more businesses invest in on-site power generation – as well as energy purchased from the Grid which can be used when required, or when the energy mix shows the greatest benefit: financial, environmental, ideally both. University of Liverpool research has established the stability of solar energy pricing versus fossil fuels and, with zero-rated VAT, businesses investing in their own solar can discount installation by 20%, while renewable infrastructure is still exempt from business rates until 2035.
Modern UPS technology – a BESS with a sophisticated control system – offers ultra-fast switching to connect the battery to site supply in less than 10ms, protecting all equipment in the case of power disruption. And energy management software can forecast and manage multiple power loads, alongside on-site generation, to help achieve the cheapest, most stable, and sustainable electrical supply.
With the right energy management software, BESS enables switching across the energy mix, whether that is Grid purchased (at its lowest price / lowest emission rate, generally at night) or self- generated and stored for use at peak Grid cost, facilitating optimum energy management at the most affordable price with the lowest emissions.
While the economy is in flux, a sound justification for energy management investment is crucial, making quantifiable cost savings a must. Investment in BESS technology is a clear win – so long as the chosen BESS has UPS capability. Given the current energy landscape, the first priority for many companies is security of power supply. Modern energy management technologies – starting with a BESS – provide this in a far more efficient, cost-effective, and sustainable way than traditional UPS solutions. With a BESS with UPS, businesses have the flexibility to grow their assets into a microgrid to manage the transition from Grid- to distributed- energy, transforming a sunk asset into a critical and dynamic piece of infrastructure.
electricalengineeringmagazine.co.uk
ELECTRICAL ENGINEERING • NOVEMBER 2023 33
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