Energy Performance Contracts

Saving your business money and helping you reach your energy efficiency targets with our Energy Performance Contracts.

EPC or ESCo ...

With decades of experience and the confidence to guarantee our work, we are the trusted ESCO/EPC experts. Saving you money and helping reach your energy efficiency targets, we custom-build innovative solutions to meet the exact requirements of your business.

Energy Service Contract


We can provide long-term energy services through the ESCo and this could entail us operate and maintain the services for the lifetime of the contract.

This can include the design, supply, installation and financing for the services.

Energy Performance Contract


This is a specific type of ESCo where we implement and maintain measures at one or more sites to reduce energy, water and/or maintenance costs – similar to an ESCo. The difference being that we guarantee the savings from these measures for the duration of the contract.

Energy Management Solutions


Our range of energy management solutions to help all types of businesses, whether they’re office-based, retail, leisure, warehousing or manufacturing

Our Services

In order to achieve this, we offer the following services:

Energy Surveys

From an initial survey through to more in-depth full investment grade audits (IGA) we can help you identify the potential for energy saving measures and work to produce an Energy Performance Contract (EPC). We offer:

Opportunity Survey

This survey identifies opportunities to save energy and the potential to develop an EPC, which helps you reduce costs.

To complete an opportunity survey, we review energy data and conduct a site visit, a process that usually lasts one to three days.

Investment Grade Audit

Based on the findings of the opportunity survey, or if you have already identified a potential scheme, we prepare for you an Investment Grade Audit (IGA). This gives you all the information you need to build a business case for an EPC and secure buy-in from all relevant players in your organisation.

With an IGA, we dive deeper and review your energy data; operating and maintenance manuals (O&Ms); backlog maintenance; estate strategy; organisational values and culture; funding requirements; and general information.

Design and Installation

We offer a wide range of design and installation works, including:

  • Air-source heat pump (ASHP)
  • Automated metering and targeting (AMT)
  • Backlog maintenance
  • Battery and standby generation / storage
  • Building Energy Management and Monitoring Systems (BEMS)
  • Biomass heating
  • Building fabric upgrades
  • Civil works (to support proposed interventions)
  • Combined Heat and Power (CHP)
  • Combined Cooling, Heat and Power (CCHP)
  • Controls
  • De-steam of site
  • Energy Centres
  • Free cooling
  • Fuel and oil storage
  • District / community heating
  • Energy efficient lighting and controls
  • Ground source heat pumps (GSHP)
  • Heating, ventilation and air-conditioning (HVAC)
  • HV and LV systems
  • Photo voltaics
  • Prefabricated plantrooms
  • Refurbishment
  • Sustainable Transformation Plan (STP) integration
  • Water efficiency
  • Wind power

We can provide new, or refurbish and/or adopt existing equipment. Our work is carried out safely and planned to ensure that there is little or no disruption to your day-to-day business.


Designed around the needs of your organisation, we can provide a tailored package of maintenance services that can include your existing infrastructure if required. Our goal is to not only save you money on your energy, but also ensure that your systems run smoothly.


As a core part of our EPC work, we offer a range of different consultancy services that include:

  • Opportunity surveys
  • Energy compliance (ESOS, greenhouse gas, CRC, CCA, EU, ETS, EPBD, CP1, RO, FIT, etc.)
  • Energy monitoring and validation
  • Bill Validation

Find out more

To find out how much we can save your business, please contact us by clicking the button below.

Ylem Energy Limited
Edison House,
Daniel Adamson Road,
Salford, M50 1DT,
United Kingdom

Registered in England
No. 02152229

Ylem Power Limited
Registered in England
No. 11934674

Biogas Technology Limited
Registered in England
No. 02323287

The Association for Decentralised Energy




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Parker Ward Limited