This food manufacturer used voltage regulation to unlock more than £61,000 of savings on their annual energy bills.
What is voltage regulation?
Voltage regulation is a transformer-based technology that improves the power quality of your site.
Voltage regulation, also known as voltage optimisation, is a voltage management technology that reduces energy consumption and electricity costs. Installed behind the meter on a site, voltage regulation conditions incoming grid power to match the voltage required by equipment on-site.
Powerstar’s voltage regulation solutions have online, remote monitoring capabilities, providing full visibility of asset performance, savings, and more.
How voltage regulation can help you?
Spikes, sags, or fluctuations in your voltage supply or a consistent overvoltage can cause damage to equipment, disrupt operations, and waste energy. Sudden changes in voltage can trip sensitive electrical equipment. Consistently supplying equipment with a higher voltage than required can cause damage or premature burnout.
Regulating, conditioning, and reducing your incoming voltage supply protects your electrical equipment while reducing electrical consumption, costs, and carbon emissions.
Why voltage regulation is necessary
Voltage regulation is necessary because the voltage of electricity supplied by the National Grid typically fluctuates. In order to meet their binding requirement of supplying users with 230V, with a tolerance of +10% and –6%. This means that in practice, UK sites can be supplied with voltages ranging between 216V and 253V. The National Grid actually supplies a higher average voltage – typically around 245V – to ensure that the lowest value is still acceptable.
In the UK, electrical equipment is generally designed to work at 220V. This means that it is always operating at a higher voltage than necessary, which causes damage and reduces its working lifetime.
How does a voltage regulator work?
Powerstar uses patented technology to achieve the voltage reduction, which is far more efficient than other voltage regulation or voltage optimisation solutions. Traditional solutions transform the entire voltage supplied to a site, and thus suffer large losses. The Powerstar solution transforms only the reduced voltage and therefore loses far less energy in doing so.
Voltage regulation also smooths out the peaks and troughs that can occur in voltage supply from National Grid, making your site more resilient by supplying equipment with a steady, reliable voltage and avoiding sudden surges or sags in the supplied power
The technology can either provide a set level reduction for high, but stable incoming voltage profiles, or can dynamically regulate a fluctuating voltage profile to maintain a desired set level.
For more technical information about voltage regulation view our technical specifications below.
How to implement voltage regulation
Voltage regulation can be implemented as a standalone technology to protect equipment from voltage supply issues along with its other benefits. It can be connected to a high voltage or low voltage supply.
If you operate your own high voltage infrastructure, it can be integrated with an existing distribution transformer. Alternatively, your transformer can be replaced with a new, efficient distribution transformer with integrated voltage regulation. If you operate a low voltage supply only, it can still be implemented on your site.
Integrated into a battery energy storage solution with full Uninterruptible Power Supply (UPS) capabilities you can harness all the benefits of a consistent, uninterrupted power supply. This benefits your site by providing comprehensive power resilience and improved power quality. Due to its additional benefits of reducing electricity consumption and bills, it also improves the overall return on investment (ROI) of the battery energy storage solution.
Which sectors benefit most from voltage regulation?
Sites that are being supplied with overvoltage or undervoltage will see the most benefit from voltage regulation, but almost all sites will be able to secure savings via improved energy efficiency. Most infrastructure and equipment will operate more efficiently and with less need for maintenance at lower voltages.
Voltage regulation is best suited to environments where there is sensitive or critical electrical equipment, with long operating hours and a high level of electricity consumption. This means it performs well in sectors such as manufacturing, defence, retail and distribution, and healthcare.
While voltage regulation offers both improved power resilience and potential energy savings, it is important to note that the benefits it offers vary significantly depending on-site, and in particular depending on the current-voltage you are being supplied with by the grid. This means that a site survey from a reputable supplier is a vital first step when considering voltage regulation technology.
Contact us to discuss how voltage regulation could benefit your organisation
Related case studies
Voltage regulation technology unlocked a consumption reduction of nearly 60,000kWh for Copeland Borough Council
Voltage regulation provided a 7.5% reduction in energy consumption for this shopping centre.
This precision manufacturer removed more than 85 tonnes from their annual net emissions with the help of voltage regulation
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