TM54 calculations

operation energy performance
The most comprehensive calculation for
commercial buildings

Bridge the gap between predicted and actual energy performance

Many commercial buildings fall short of their energy efficiency goals due to overly optimistic predictions made during the design phase. This results in higher operational costs, missed sustainability targets, and dissatisfied end users.

Our TM54 calculation service provides reliable, data-driven insights to identify and address inefficiencies early in the design process. By leveraging dynamic simulations, tailored occupancy profiles, and scenario testing, we ensure your building's energy performance meets real-world demands. This proactive approach minimises the performance gap, delivering sustainable and cost-effective outcomes.

Why do TM54 calculations matter?

Cut operational
costs

Optimise energy systems to reduce consumption and operating expenses.

Future-ready
designs

Align your building's performance with evolving sustainability standards.

In-depth
analysis

Comprehensive reporting with actionable recommendations for stakeholders.

Our Process

Collect building
information

to gather specifications and operational requirements of your project.

Arrange an initial
consultation

to discuss goals and unique challenges with our team of specialists.

Complete energy
modelling

to simulate your building's actual energy performance.

Assess various operational scenarios

for optimal energy use.

Deliver detailed
reports

with actionable recommendations and strategies.

Provide ongoing
guidance

to ensure successful implementation.

Why choose Energy Digest?

Energy Digest’s TM54 calculations help uncover discrepancies between expected and actual building energy performance, empowering you to make well-informed design and operational decisions.
By adhering to CIBSE TM54 standards, our consultants evaluate real-world usage patterns, materials, and systems. This ensures reliable energy predictions that help you deliver cost-effective, high-performing buildings aligned with client expectations. 

Fast turnaround time

To help you meet your own deadlines, we’ll ensure your TM54 calculations are issued within 7 working days.

Multi-disciplined team

We cover 20+ services in the built environment, with specialists providing high-value calculations and strong advice.

Achievable solutions

Our professionals provide recommendations that are calculated to ensure real world outcomes, resulting in cost-effectiveness and high impact.

Unrivalled support

Our service doesn’t end with the reports. We can provide ongoing support and expertise, from planning to completion.

Speak to our
experts today

FREQUENTLY ASKED QUESTIONS

TM54 Calculations
FAQs

Buildings with complex energy demands, such as offices, schools, hospitals, and mixed-use developments, benefit significantly from TM54 assessments.

TM54 predictions are highly accurate, as they use detailed occupancy data, operational schedules, and advanced simulations.

Occupancy profiles are based on expected usage patterns, including space utilisation, activity types, and operational hours, ensuring realistic energy predictions.

Yes, TM54 applies to both. For new buildings, it ensures efficient design; for existing ones, it identifies opportunities for energy-saving retrofits.

Absolutely. TM54 provides insights into materials, systems, and layouts, enabling architects and engineers to optimise the energy performance of any property.

What is Unregulated
Energy?

Unregulated energy, such as power for appliances and IT equipment, often goes unnoticed in standard assessments. TM54 calculations model this energy during design, accounting for usage patterns and occupancy behaviours.

These insights help refine designs, reduce operational costs, and support net-zero carbon goals. By addressing real-world energy use, TM54 ensures buildings perform as intended, promoting sustainable development.

Spoke with Josh who not only reassured me but asked for a fee that I thought was fair. Thank you Josh. Use again? Definitely.

Steve Quirk

The team really know their stuff – super helpful and always had clear answers to any questions or compliance issues we ran into. Definitely our go-to for any future projects!

Nathan Donnelly

Quick and well priced water calculation service and received an appliance specification report alongside the certificate which was really useful for us and the building control officer, highly recommended!

Ilma Akhtar

Very knowledgeable about building regulations, and the industry. Always goes the extra mile to help out! 5*

Karim Meraga

Still unsure?

We offer free phone call and email support until you’re ready to proceed with us.
Access free support for your project now.

crossmenu