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Frequently Asked Questions

FAQ's / Frequently Asked Questions surrounding PowerMark, Generators, power generation & more.

Who are PowerMark?

PowerMark is a trading division of Constant Charging Solutions Ltd, with headquarters in Selby North Yorkshire, offering power generation products, uninterruptable power supply units, EV Charging units and clean energy solutions to customers throughout the UK and beyond. You can read more about us here.

Where are you based?

PowerMark are based in Selby, North Yorkshire. 

Are you hiring?

We are always on the look-out to expand our team! If you're interested in working with us, send us your CV & covering letter to

What industries do you operate within?

We supply organisations within any and every industry that depend on a reliable power supply in order to continue operating. However, our main industry sectors include: Data Centres, Healthcare (Hospitals), Infrastructure, Petrochemical, Telecommunications, Pharmaceutical & Mining.

What is KVA?

kVA (kilovolt-amps) is a measure of apparent power: it describes the total amount of power being used by a system. Fundemantally, 1 kVA is equal to 1,000 volt amps. Whereas volts is a measurement of electrical pressure and amps is a measure of electrical current, apparent power is equal to the product of the volts and amps.

What size generator do I need?

Before deciding on a generator, it is important to consider ALL the appliance you may want to operate, how many will be used simultaneously and the TOTAL current consumption at any one time. Most appliances have a descriptive plate stating the current, usually in watts.

Various electrical applications have very different power requirements, so it is essential to understand each particular need. For example TV sets, cookers, kettles and filament lamps have resistive loads, this means that their start up and operating currents are virtually the same - and as stated on the manufactured descriptive plate. Buying the right generator can seem like a formidable task. But in just a few easy steps you can effectively and confidently decided and choose which generator is right for you.

  1. Identify the tools and appliances you wish to operate with your generator.
  2. Determine the required power for each item ( see appliance data plate i.e.: watts of appliance).
  3. Add the required Watts of each item that will be running simultaneously. Also allow for motor starting of appliance (see below)
  4. Choose the generator that has rated watts that meet or exceed this total power. 

What is a UPS?

UnInterruptible Power Supply (UPS) is an electrical equipment that provides emergency power to a load when the main input power source fails. A UPS differs from an auxiliary or emergency power system or standby generator because it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries.

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