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PSW Energy Consultancy provides a comprehensive service to a broad range of clients who seek to comply with necessary legislation, ensure that bills accurately reflect usage and who strive to inform ways of reducing consumption.

We have developed a unique and bespoke energy portal, enabling our clients to remotely monitor, collect data and control energy consumption from anywhere in the World.

Whether its bill verification, energy metering and monitoring, contract renewal, power quality studies, landlord and tenant billing or energy reduction opportunities, we have the right solution for your business.

We also offer compliance services for ESOS PHASE 2, ISO 50001 and P272 to compliment our energy portfolio.

Please select a service below for more information.

Consultancy Services
Consultancy Overview

PSW provides energy management, metering, monitoring, remote communications, and managed bureau services. Whether its bill verification, contract renewal, energy monitoring, power quality studies, landlord and tenant billing or energy reduction opportunities, we have the right solution for your business.

Experience, Expertise, Knowledge

We provide a complete energy service, supplying a full range of meters for all utilities including electricity, heat, water, gas, oil, diesel, compressed air, In fact almost anything requiring accurate measurement. Our meters record energy consumption and instantaneous information in assets/plant, processes and buildings. Our data capture technology and bespoke software platform aligned with in-depth knowledge ensure that we meet client expectations.


We undertake all of our projects with determination and enthusiasm making sure we achieve a thorough understanding of the client’s needs. We demonstrate our technical excellence and comprehensive expertise by delivering satisfaction to every client, large and small. We have vast experience in:

  • Identifying and explaining excessive energy use
  • Detecting instances when consumption is unexpectedly higher or lower
  • Visualizing energy consumption trends
  • Determining future energy use and costs when planning change
  • Diagnosing specific areas of waste energy (electricity, gas, water, heat, cooling etc)
  • Monitoring changes to relevant driving factors affecting energy efficiency
  • Developing performance targets for energy management programs
  • Managing energy consumption, rather than accepting it as a fixed cost

Our aim is to reduce energy costs through improved energy efficiency and energy management control.


SECR is a new annual reporting requirement covering business energy use and carbon emissions. SECR has replaced the previous CRC Energy Efficiency Scheme.

SECR applies to quoted and large unquoted companies registered in the UK that fulfil at least 2 of the following:

  • More than 250 employees
  • An annual turnover of £36m or greater
  • An annual balance sheet total of £18m or greater.

Large LLPs will also be required to prepare and file an energy and carbon report.

Qualifying organisations must report UK emissions for electricity, gas and transport as a minimum. A commentary is also required on any energy efficiency action taken in the reporting year.

Due to the time and complexity of the work involved, many organisations are turning to the services of specialist consultancy companies and our team of experts are on hand to help.

UK Government guidance of SECR

Energy Monitoring

The PSW Periodic Energy Assessment is a proven approach that provides the perfect solution to any organization needing to understand the use of energy throughout all types of buildings/premises and the fixed assets they contain. The implementation is clean, simple, low cost and user friendly. It is often the first step in developing a strong energy strategy for maintaining peak operations, and lowering operating costs.

What we do

PSW provide an end-to-end energy management solution for companies of any size, in any sector. This is supported by our professional team of consultants and installation staff.

How we do it

We accurately measure, collect and transfer raw energy data measured from meters/sensors to our dedicated energy portal for processing. We collect energy data at user definable intervals, adjustable to match different types of application requirements.


The implementation of our energy monitoring enables organisations to achieve energy visibility through ‘granularity’, realize saving opportunities, achieve reductions on direct energy expenditure, a reduction of both management and administration time to achieve statutory compliance and accelerated behavioural change through stakeholder engagement.

Once measured, energy data is transferred to our bespoke cloud based energy portal, Meteranalysis, that allows our clients to see, analyse and report the results. We can monitor gas, water, electricity, heat, oil, diesel, compressed air, in fact almost anything requiring accurate measurement.

Innovative Solutions Based on Experience

100% web enabled with real-time energy data

Weather & Climate Monitoring
Service Overview

We offer a comprehensive environmental, weather and climate monitoring service. Whether you require short-term or long-term environmental monitoring we have the solution for you. It may be for outdoor areas, construction sites, demolition sites, outdoor festivals, outdoor industrial operations, wind farms, airports or motorsport events. In scenarios such as these, several monitors can be deployed within or around a site, allowing the continuous measurement of weather data. Alarms can be set should pre-defined trigger levels be exceeded, while email notifications can be sent instantaneously for early action notification.

What can be measured?

Our system can measure / record all weather and environmental data, such as, barometric pressure, temperature, humidity, rainfall, wind speed / direction, solar radiation and UV.

Access to the data / information is via our bespoke portal, Meteranalysis. We can provide calculated values such as wind chill, dew point and evapotranspiration as well as forecasting and a current conditions “ticker”. The anemometer can be mounted separately, up to 40′ (12 m), from the rain collector.

How Can PSW Energy Help?

Our comprehensive environmental, weather and climate monitoring service gives access to real-time data anywhere and anytime. It helps any organization needing to understand environmental, weather and climate conditions throughout all types of sites and buildings.


All PSW drone services, surveys and inspections are carried out by qualified professional pilots in accordance with the UK safety regulations governing the use of drones. Our pilots are both Civil Aviation Authority (CAA) registered and Permission for Commercial Operations (PfCO) certified. Typical applications include:

  • Aerial Surveys of Buildings, Structures & Roofs
  • Inspections of Solar Panels, Wind Turbines and cladding
  • Drone land and area mapping.
Energy Control

Communication networks are used extensively in Building Automation systems at the automation and management levels, but are less used at the device (sensor or meter) level. PSW Energy Control changes this situation. Our system significantly simplifies the site level wiring, but without increasing material cost. Furthermore it reduces commissioning time and offers the possibility to integrate existing HVAC and lighting controls.


Our approach provides a flexible, modular system that can easily be expanded by simply extending a 2-wire Dupline network bus cable and adding the desired modules. The system provides flexibility, backwards compatibility and expandability whilst saving costs. Last minute changes are easily accommodated. Easy handling, easy design, planning, installation and commissioning are inherent features of the network.


Electrical Demand Control – In addition to the regular usage rate, most utility companies impose a demand charge. This is an extra charge per kilowatt based on the highest rate of use for a given period (usually 15 minutes). The demand charge can amount to as much as half the utility bill. DDC programs limit the demand charge in a number of different ways:

Duty cycling – This turns off different HVAC units during peak load times in order to reduce the demand charge. The system regulates off time according to such things as indoor temperature.

Load shedding – This turns off various building electrical loads to reduce demand charges. Usually a schedule called a shed table is developed that sets priorities on which loads will be first to be turned off.

Averaging control – This averages the input from several sensors. For example, building temperatures will vary in a building. The temperature in a lobby will be much different than the temperature of an inner office on one of the higher floors. The computer receives input from sensors located in different parts of the building, averages them, and acts on the average.

Soft starting – This brings large equipment on line slowly to minimize the large onrush of current that occurs when starting large motors.

Event scheduling – In addition to the ordinary schedule for a buildings occupied times, our Smarter Buildings system can control many different time schedules:

  • Precooling or preheating to bring the building to comfort level by the time of occupancy. The time of starting will vary as Sensors connected to our Fieldbus Network, communicate with our energy portal to calculate different variables such as outside and inside air temperatures to determine the best start time.
  • Stop control turns off the HVAC system a set time before the building becomes unoccupied. For an office building, stopping the system a half-hour early means reducing the operating time of the system by 130 hours per year.
  • Different set points for unoccupied times.
  • Variable time schedules for different days of the week. For example, in addition to the regular daytime occupancy, a building may be in use three nights a week between 7 and 10 p.m.
  • Holiday scheduling.
  • Daylight savings time adjustment.

Temporary scheduling – A timed override switch can be used for areas that have variable schedules. Monthly or weekly events can be programmed.

Economizer Control – Economizer control sets the system to use outside air instead of the mechanical chiller to cool the building, when outside air temperature and humidity are within a specified range.

Sequence Control – Sequence control, also called lead/lag control, is used if two or more pieces of the same item of equipment (such as pumps, chillers, or compressors) are installed in a system. Sequence control puts one in operation if the other fails. For example, if there is a primary pump and a backup pump, if the primary pump fails, the backup is started. Another strategy is to alternate the use of the two pumps so that they receive equal wear.

Reset Control – Reset control is an energy-saving strategy that changes the set point of a controlled variable as another variable changes. For example, a typical hot water set point for a heating coil is 220ºF when the outside air is at 0º. When the outside air temperature reaches 60º, the hot water set point could be automatically reduced to 140º, because less energy is needed to maintain the air temperature.

Low Limit and High Limit Control – Low limit and high limit control adjusts the system to limit the low and high of a controlled variable. For example, if the outside air temperature drops very low, the system adjusts to prevent the mixed air temperature from dropping below a certain set point.

Utility Sub-Metering

As part of our complete energy service we can supply a full range of meters for all utilities and our meters record energy consumption and instantaneous power information for plant, processes and buildings.

  • Electricity
  • Gas
  • Water
  • Heat / Cooling
  • Tennant Billing
  • Measurement & Verification

Our experience enables us to integrate meters from the world’s major manufacturers and our data capture and bespoke software solution ensures that we meet our client’s expectations with every project we deliver.

Construction Site Utility Sub-Metering
Metering Site Temporary Supplies for verification purposes

An effective energy management approach requires and understanding of energy costs, bench-marking and energy performance. This includes matching energy use to requirements and maximising system efficiencies. Energy consumption during construction can vary depending on the various stages, equipment and plant in use at the time, their state of repair and the amount and type of electrical equipment installed on fixed assets. The fundamental goal of construction energy management is to build with the least cost and least environmental effect. The judicious and effective use of energy to maximise profits (minimise costs) and enhance competitive position underpins this strategy. Accurate monitoring minimises energy costs / waste without affecting the construction programme or build quality.

KVA Capacity, Water Consumption and KWh Monitoring during construction

The environment will benefit from reductions in energy use and carbon emissions which will improve the company image. As most areas of a construction sites have no energy monitoring capability and energy consumption is based on supplier data which can be flawed and prone to error. This highlights the importance of, providing energy usage reports for cost reduction and compliance, not to be a burden on administration and back-office functions, utilising supplier energy usage data for verification and to target energy or cost reduction and providing detailed assessment of sub-contractor energy related performance.

Energy Savings Opportunity Scheme

Under ESOS large UK organisations are obligated to carry out ESOS energy assessments  and once completed assessments will be repeated once every 4 years.

If an organisation has an accredited ISO 50001 certificate that covers the full scope of ESOS, then that will suffice as ESOS compliance. All organisations need to do then, is notify the EA and provide proof of compliance via that route.

However, if ISO 50001 is not used as a route to compliance, then an ESOS energy audit will be needed as the next best and most common available route to compliance.

Every four years, a new compliance period starts.

The deadline for Phase 2 has now passed but it’s not too late to act. We recommend you contact us straight away so we can start the compliance process. Failure to comply can result in a fine of up to £90k.

The qualification date for compliance for Phase 3 is 31st December 2022, with proof of compliance covering the period (from 6 December 2019 to 5 December 2023) being required by 5 December 2023.

If your organisation chose an ESOS energy audit as the compliance route for Phase 2 then you will now have a robust ESOS evidence pack that will include:

  • the calculation for your total energy consumption
  • a list of your identified areas of significant energy consumption
  • details of the energy saving opportunities identified.

However, you won’t be able to use this information to demonstrate Phase 3 compliance, so this exercise will need to be repeated.

Alternatively, information from your previous ESOS energy audit can be used as the basis for implementing an energy management system (EnMS) to allow realisation of the energy saving opportunities.
If your system is then certified to ISO 50001 during the next four years, your organisation will automatically demonstrate Phase 3 ESOS compliance.

Benefits of implementing ISO 50001 to demonstrate Phase 3 compliance:

  • You are assessed regularly for continual improvement in energy efficiency, so you continue to reduce costs, meaning that ISO 50001 saves you money
  • Your EnMS gives you a tried and tested strategic framework and long-term plan for energy saving, which has to have top management support and engagement
  • You minimise risk and increase energy security through rigorous auditing
  • Your EnMS certification can give you a competitive edge, through improved environmental performance, productivity, compliance and communication of best practice.

UK Government Guidance on ESOS Compliance

BS 50001

Using energy efficiently helps organizations save money as well as helping to conserve resources and tackle climate change. ISO 50001 supports organisations in all sectors to use energy more efficiently, through the development of an energy management system (EnMS). The ISO 50001 is based on the management system model of continual improvement also used for other well-known standards such as ISO 9001 or ISO 14001. This makes it easier for organisations to integrate energy management into their overall efforts to improve quality and environmental management. ISO 50001:2011 provides a framework of requirements for organisations to:

  • Develop a policy for more efficient use of energy
  • Fix targets and objectives to meet the policy
  • Use data to better understand and make decisions about energy use
  • Measure the results
  • Review how well the policy works, and
  • Continually improve energy management.
  • Identify and manage the risks surrounding your future energy supply
  • Measure and monitor energy use to identify where to improve efficiency
  • Improve overall performance to cut energy consumption and bills
  • Reduce carbon emissions and meet government reduction targets
  • Demonstrate environmental credentials to increase tender opportunities

Effective energy management isn’t just good for business, it’s also becoming a requirement and the best way to achieve this is with ISO 50001. The international standard outlines energy management practices considered to be the best, globally. Energy management specialists from over 60 countries developed the standard and now we can help you tap into that expertise, every day to help you save energy, cut costs and meet environmental requirements.

At PSW, we believe that by both adopting and then implementing the principles outlined by the international ISO 50001 standards for energy, it will enable a detailed understanding of your energy consumption; identify underlying factors which impact on consumption; and set appropriate targets that allow you to review performance. This will subsequently allow you to identify avoidable waste or other opportunities to reduce consumption.

Heat Network (Metering & Billing)

New UK regulations came into force in December 2014 that effect landlords and property owners. It is part of a wider European Energy Directive enabling end tenants to reduce their heating costs and there are three issues to be addressed:


Each heat supplier must register with the National Measurement Office (NMO) before the end of 2015 (this is an amended date from the original 15th April 2015) of the location, size and supply details of existing buildings. Each building needs to be identified, along with the number of end users and how these tenants receive information or are billed.


Schemes with multiple buildings are required to have a heat meter to be installed at the incoming heat entry to each building. These ‘bulk meters’ must be in place by the 30th April 2015.
For each tenant or customers within the building the landlord must evaluate the feasibility of installing end tenant meters or heat cost allocators (radiator meters). As the heat supplier you need to complete a building survey and if it is found feasible then the meters must be installed by December 2016.

The benefits that heat meters provide are:

  • Tenants pay for what they use
  • Landlords recover all of their energy costs
  • Tenants can use the meter data to reduce energy costs
  • The regulations allow for metering and billing costs to be charged to the tenants

End customers must be billed using actual meter readings. This provides customers with transparency in consumption to reduce energy, whilst paying for only what they are using.

Featured Project

AVIVA St. Helens London

What our Clients think…

We regularly seek client feedback as part of our Quality Management procedures and here are some recent comments.

" With PSW's guidance we have managed to identify significant savings in a short space of time and ensure our organisation is compliant with all necessary ESOS legislation."
" I just wish that more company's had PSW's approach to client care and service delivery. They provide a complete professional service."