Advanced energy modelling and carbon assessment

From Whole Life Carbon Assessments (WLCA) to operational energy modelling, our comprehensive services transform building performance data into strategic advantages. We deliver measurable energy efficiency, carbon reduction, and regulatory compliance, supporting sustainability objectives.

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Early design energy management and carbon reduction solutions that achieve cost savings, regulatory adherence, and demonstrable developer environmental leadership.

Energy and carbon services spanning four core capability areas

01

Why energy and carbon matter

As organisations transition towards a low-carbon economy, companies face mounting pressure to address energy consumption and greenhouse gas emissions effectively. Our Energy and Carbon services help organisations take comprehensive approaches to managing environmental impact, achieving sustainability goals, and unlocking opportunities for cost savings and operational efficiency through strategic energy management and carbon reduction planning.

02

Energy management

Our team helps organisations optimise energy use through the implementation of energy-efficient technologies and renewable energy integration that reduces overall consumption and costs via systematic performance improvements and operational enhancements.

03

Emissions accounting and reporting

We assist in the measurement, tracking, and reporting of Scope 1, 2, and 3 greenhouse gas emissions, ensuring compliance with regulatory requirements and enabling transparent communication with stakeholders through robust data collection and verification systems.

04

Decarbonisation strategy

Our experts assist clients in the development of comprehensive decarbonisation strategies, including setting science-based emissions reduction targets, identifying high-impact initiatives, and creating detailed implementation roadmaps for systematic progress tracking and performance monitoring.

05

Carbon offsets and credits

We guide organisations through carbon offset procurement, sourcing high-quality credits to balance unavoidable emissions and help them meet their carbon reduction commitments.

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Building Whole Life Carbon Assessment (WLCA)
1

WLCA expertise delivering measurable carbon reductions and regulatory compliance

We help organisations understand building environmental impact through comprehensive Whole Life Carbon Assessments, evaluating total emissions across design, construction, operation, and demolition phases. Our systematic methodology addresses regulatory requirements and stakeholder pressure for carbon accountability whilst quantifying emissions at each lifecycle stage and identifying highest impact reduction opportunities. We develop targeted carbon reduction strategies covering material selection, design optimisation, and operational improvements that deliver measurable emissions reductions and demonstrate genuine environmental leadership through regulatory compliance.

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2
Environmental Product Declaration (EPD)
2

Complete EPD development from lifecycle assessment through verification

Environmental Product Declarations provide transparent, verified information about building material environmental impact throughout their lifecycle, enabling informed procurement decisions and demonstrating sustainability commitment. Our team delivers comprehensive EPD services addressing manufacturer pressure for verified environmental declarations whilst preventing project exclusion risks. We perform detailed lifecycle assessments quantifying carbon footprint and resource consumption, develop compliant EPD documents meeting international standards, coordinate third-party verification with accredited operators, and provide ongoing maintenance ensuring current environmental credentials and sustained market competitiveness.

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3
Greenhouse gas (GHG) inventorying (Scope 1, 2, & 3)
3

Decode Scope 1 2 3 emissions for strategic carbon management

Greenhouse gas inventorying provides comprehensive emission quantification across Scope 1 direct emissions, Scope 2 energy consumption, and Scope 3 value chain emissions, addressing regulatory reporting requirements and carbon reduction strategy development. Our engineering-led approach delivers systematic emission source identification, data collection processes, and emission factor application that meet GHG Protocol standards and ISO 14064 requirements. We provide comprehensive emission baselines, reduction opportunity identification, and verification-ready documentation supporting CSRD, EU Taxonomy alignment, and science-based target setting whilst ensuring regulatory compliance.

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4
Operational carbon/energy modelling
4

Eliminate operational energy uncertainty with precision carbon modelling

Measurable energy savings, carbon reductions, and regulatory compliance result from precise operational performance modelling and strategic system optimisation. Our comprehensive analysis identifies efficiency opportunities through advanced dynamic simulation, thermal modelling, and HVAC system assessment. Building operators receive actionable recommendations for targeted investments that simultaneously reduce operational costs and carbon emissions. This detailed performance evaluation enables organisations to navigate complex regulatory requirements whilst achieving ambitious sustainability targets through data-driven operational improvements and strategic efficiency measures.

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5
Thermal comfort analysis
5

Enhance occupant wellbeing through precision thermal comfort optimisation

Occupant wellbeing and productivity depend on optimal thermal comfort conditions that balance temperature, humidity, air velocity, and radiant temperature parameters across building environments. Through comprehensive thermal comfort analysis using established methodologies and environmental monitoring, we identify performance issues affecting occupant satisfaction and energy consumption. Our systematic approach includes field measurements, occupant surveys, and thermal modelling that delivers HVAC optimisation strategies ensuring ASHRAE 55 and EN standards compliance whilst maximising comfort and operational efficiency.

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Passive design analysis
6

Building physics expertise delivering natural performance enhancement strategies

Solar orientation, thermal mass, natural ventilation, and daylighting strategies form the foundation of effective passive design that minimises mechanical system reliance whilst enhancing building performance. Through detailed climate assessment and thermal performance modelling, we evaluate site-specific passive design opportunities and environmental conditions. Our building physics expertise transforms comprehensive analysis into actionable strategies that optimise energy efficiency, thermal comfort, and indoor air quality. This systematic approach delivers targeted solutions, reducing operational energy consumption, carbon emissions, and lifecycle costs through strategic natural resource utilisation.

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7
Part L compliance (Irish regulation)
7

Navigate Irish Part L regulations ensuring planning approval success

Irish Building Regulations Part L demands comprehensive energy performance and conservation compliance through detailed fabric performance, building services efficiency, and carbon emission assessments. Our specialist expertise navigates Technical Guidance Document L requirements using thorough compliance reviews, including U-value calculations, thermal bridging assessment, and air tightness specification. We deliver BER certificate preparation, building services evaluation, and compliance documentation development that supports planning approval, building control acceptance, and successful project delivery whilst optimising performance and minimising compliance costs.

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Buildings consume significant energy and generate substantial carbon emissions throughout their lifecycles, but this challenge presents a tremendous opportunity for strategic organisations. Our comprehensive approach spans from whole life carbon assessments to operational performance optimisation, transforming complex environmental data into actionable business intelligence. We don’t just measure carbon; we create pathways to meaningful reductions that deliver operational cost savings, regulatory compliance, and environmental leadership. Choose Ethos to turn sustainability requirements into competitive advantages.

Guidance that can lead to cost savings based on Energy & Carbon recommendations

Our energy and carbon services deliver immediate cost reductions, optimised building performance, clear net-zero pathways, enhanced energy security, competitive market advantages, and protection against volatile energy pricing.

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Building performance optimisation

Advanced modelling identifies efficiency improvements that enhance occupant comfort whilst reducing energy consumption, delivering optimal building performance through data-driven design decisions and strategic system integration.

Net-Zero transition pathways

Clear roadmaps enable systematic progression toward carbon neutrality with measurable interim targets, providing structured approaches to achieving net zero emissions through strategic planning and implementation.

Competitive advantage in carbon markets

Our guidance on low-carbon frameworks gives developers competitive market advantages by simplifying carbon reduction, enabling successful positioning in sustainability-focused project selection and investment opportunities.

Future energy cost protection

Strategic sustainability inputs during the design phase deliver immediate utility cost savings whilst protecting against volatile energy prices through efficiency improvements and renewable integration.

Our Sustainable Solutions

Partner with Ethos for trusted sustainability expertise. Our articulate, experienced, and technically competent team provides comprehensive solutions across certifications, energy and carbon management, and ESG frameworks.
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Sustainability
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From reducing carbon and optimising energy systems to achieving leading certifications, our sustainability experts turn ambition into action. We deliver strategies that meet regulatory requirements, exceed environmental targets and create measurable benefits for clients, communities and the wider environment.
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Sustainability Service Certifications
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Our accredited specialists guide projects through LEED, BREEAM, WELL, HPI, EDGE and ILFI Net Zero Carbon. We streamline complex certification processes, optimise credit opportunities, and provide clear guidance, ensuring frameworks validate building performance, enhance market value, and demonstrate authentic environmental commitment for clients and stakeholders.
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ESG
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Our ESG services cover roadmaps, reporting, and regulatory alignment across CSRD, ESRS, EU Taxonomy and more. We help organisations turn compliance into opportunity through credible disclosure, risk management, and stakeholder engagement, building investor confidence and positioning businesses for sustainable growth and competitive advantage.
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Mechanical & Electrical Engineering
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Our experienced engineers design and manage the lifeblood of buildings. With technical excellence and a culture of collaboration, we deliver resilient systems that adapt to future demands. From critical power and cooling to intelligent energy management, we provide the backbone of high-performing buildings.
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Digital
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We apply digital tools and smart technologies to improve performance and decision-making, supporting the navigation of complex building landscapes. From modelling to monitoring, our digital approach provides clarity and operational efficiency across every stage of your project.
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Design Management
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Our structured approach coordinates the flow of information between architects, engineers and consultants. By aligning technical detail with project priorities, we lead a design process that accelerates decision-making and drives successful delivery.
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SIMSTUDIO: Advanced Simulations
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Ethos & SimStudio, now as one, are combining engineering leadership with advanced Computational Fluid Dynamics and crowd simulations expertise. Together, we test performance early, inform smarter design choices, and deliver solutions trusted across the most complex sectors.
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