Optronix, a part of the GS Group

ESGSustainability

Lower carbon. Lower bills.

We help data centre clients reach their net-zero and ESG goals and reduce energy costs: 100% sustainable energy at competitive rates, and design and build with sustainability at the heart.

Single-line drawing of a sustainable power path: renewable generation feeding the transformer, switchgear, UPS and PDU to the rack
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01Our approach

Efficiency from
the first drawing.

We help clients meet their sustainability goals, whether that is a net-zero commitment, ESG targets, RE100, Science Based Targets (SBTi) or cutting Scope 2 emissions. Every data centre and critical IT solution we deliver is developed with those objectives at the heart.

Through our partnership with Europe’s leading data centre energy broker, we help clients secure 100% sustainable energy at very competitive rates, reducing energy costs as well as carbon.

From white space design and build through to operations, we focus on energy efficiency and PUE optimisation, so sustainability and lower energy costs go hand in hand with performance.

Power cabling dressed in sweeping runs along a ladder rack
Fig. 02Power cabling on ladder rack, from an Optronix site.
  • 01

    Net zero and Scope 2

    Cutting the emissions that come from the electricity a site buys.

  • 02

    100% sustainable supply

    Renewable, fully sustainable energy contracts at competitive rates.

  • 03

    Efficiency and PUE

    Less overhead on every unit of IT load, and a lower bill with it.

  • 04

    Sustainable design and build

    Efficiency designed into the white space from the first drawing.

  • 05

    ESG, RE100 and SBTi

    Outcomes aligned to the targets clients report against.

  • 06

    A specialist energy partner

    Europe’s leading data centre energy broker, working alongside us.

02The ESG pathway

The path to net zero,
step by step.

The steps in the order they usually happen. Select a step to see what it involves and where we come in.

Step 01 of 04

Start from a Scope 2 baseline.

Scope 2 covers the emissions from the electricity a site buys. In a data centre that is usually the largest part of the operational footprint, so a net-zero plan starts with what the site draws and what it pays for it.

Where we come in

We start from two figures: average power drawn and the price per kWh. They are the same two our energy calculator asks for.

Try the calculator

Step 02 of 04

Switch to sustainable supply.

Switching the supply contract to fully sustainable energy cuts Scope 2 emissions at source, and bought through a specialist broker it does not have to cost more.

Where we come in

Through our partnership with Europe’s leading data centre energy broker, we secure 100% sustainable energy for clients at very competitive rates.

  • Scope 2
  • RE100

Step 03 of 04

Reduce what the hall draws.

Every kilowatt-hour spent on cooling, power conversion and lighting sits on top of the IT load. Containment, airflow management and PUE-led design shrink that overhead, and the bill with it.

Where we come in

From white space design and build through to operations, we focus on energy efficiency and PUE optimisation, with resilient, future-ready infrastructure that helps lower energy costs over time.

Data Centre Design & Build

Step 04 of 04

Report the progress.

Targets only count when the progress can be shown. ESG frameworks, RE100 and Science Based Targets all rely on clear, consistent energy and carbon data.

Where we come in

We support ESG alignment, RE100 and SBTi-style targets, and clear reporting on carbon and energy, so clients can demonstrate progress to stakeholders and regulators.

  • ESG
  • RE100
  • SBTi

Proven outcomes, 2025

Several of our data centre clients renewed their energy contracts at a lower rate while moving to fully sustainable supply, cutting both bills and emissions.

03PUE explained

What PUE measures,
and why it matters.

Power usage effectiveness compares everything a facility draws with what actually reaches the IT. Turn the dial to see where the rest goes.

1.56 PUE
PUE= Total facility energyIT equipment energy
Share of each kWh that reaches IT
64%
Overhead per kWh of IT load
0.56kWh
Overhead at your 1.0 MW draw
3,145MWh / yr

A PUE of 1.0 would mean every kilowatt-hour reaches the IT. The gap above 1.0 is the cooling, power conversion and lighting that keep the hall running, which is where design and operations make the difference. The last figure uses the power draw set in the calculator below.

Industry average: Uptime Institute Global Data Center Survey, 2024. Air and liquid values are typical figures; see our liquid cooling guide.

04Energy offer

Greener energy,
at a better rate.

Set roughly what you draw and what you pay today, add your details, and we’ll come back with an indicative, no-obligation view of a 100% sustainable supply at a competitive rate, and where the savings could sit.

  • An indicative view, with no obligation
  • 100% sustainable supply at a competitive rate
  • Prepared with Europe’s leading data centre energy broker
  • Your figures are used only for this offer

Average power drawn1.0 MW
Price you pay today18.0p / kWh
Est. annual consumption
8,760 MWh / yr
Est. annual energy spend
£1.58 m / yr
No obligation. We use your figures only to prepare an indicative energy offer and will not share them. By submitting you agree we may contact you about it.
Thanks — that’s through to our energy team. We’ll be in touch with an indicative 100% sustainable offer based on your figures.