Tel: 0121 708 4511

Power Quality Solutions

We have specialised in Power Quality
for over 45 years & are able to manufacture, supply, install, service and upgrade every optimum solution, for every application

COVID-19 Virus

Power Capacitors Ltd is now operating normally and has implemented
a comprehensive Covid-19 policy

Our Services

We can help with all aspects of Power Quality for your business

PFC – Power Factor Correction

The use of capacitors to supply reactive power and achieve Power Factor Correction is a well-proven technology, and one offered by Power Capacitors Ltd for over 45 years. An acknowledged market leader, the BlueLine
PowerCab and PowerCabPlus are supplied in standard and bespoke designs for every requirement in every industry.

AHF – Active Harmonic Filters

Active Filters are able to almost instantaneously measure and compensate for the harmonic currents emitted by todays high efficiency and energy saving devices. Keeping the supply voltage ‘clean’ keeps loads running reliably for

HPQ – Hybrid Power Quality

The HPQ solution involves the seamless combination of both PFC and AHF devices into a single system, where both power factor and harmonic distortion are both controlled by a single piece of equipment.

UPQ – Uninterrupted Power Quality

Traditionally, extremely sensitive loads such as Data Centres and Medical Facilities would be protected by Power Factor Correction, Active Harmonic Filters, and an Uninterruptible Power Supply ( UPS ). The UPQ system combines all these functions into a single piece of equipment, with the expected reduction in size and cost at the time of installation.

SS – Site Services

Power Capacitors Ltd has the country’s largest team of specially trained PFC and Power Quality engineers. These services are offered on all Power Factor Correction and other Power Quality equipment, regardless of manufacturer.

ESS – Energy Storage System

The commercial and technical benefits of Energy Storage Systems are being recognised and adopted at an exponentially increasing rate across all market sectors. All sites with embedded generation are able to maximise the commercial gain from their generating equipment whether solar, wind, hydro or biomass.


Our Power Quality services and products can be used in a variety of different industries.





About Us

We have a long history in POWER QUALITY

The company has specialised in all aspects of Power Quality since 1973. Our experience is as diverse as our customer base which for over 45 years has always included large multi-national manufacturing, financial and utility companies as well as SMEs and private individuals.

As undisputed experts in the field of power quality we relish the challenge and are always comfortable in sharing our wealth of expertise with you.


It’s recommended that Power Factor Correction is serviced annually. Our engineers will complete a 56 point checklist which includes environment, loading and suitability checks to accommodate changes in supply.

Latest News

15th May, 2020
SafeContractor Accreditation

As part of Power Capacitors’ commitment to maintaining the highest levels of Safety, we are pleased to announce that our SafeContractor Accreditation has once again been renewed. Safe working practices are at the heart of our culture, as we aim for the highest levels of customer service. Get in touch to learn how we can […]

26th March, 2020
Covid-19 Virus

Power Capacitors Ltd is implementing the need for Social Distancing to suppress the spread of the Covid-19 virus The Company is operational and maintaining support to its customers. Our Sales and Technical Support teams are available, and can be contacted as usual by email or phone. There is a skeleton staff at the factory observing […]

12th June, 2019
MiM Expo next week

We'll be at the MiM Expo next week answering all questions Power Quality related, explaining how 'dirty electricity' is expensive and those charges don't appear on the bill! Active Filters will be as commonplace in 10 years as PFC is today. Come along and have a chat with us on stand L14 next Thursday 20th […]

29th May, 2019
Power quality

Power quality can affect the entire company performance, a fact easily and often overlooked by the management team. Power Capacitors Ltd.’s range of Merus Active Harmonic Filters provide a quick and effective response to power system variations, enabling higher process reliability, longer equipment life, reduced energy losses and increased productivity. It also makes it easy […]
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