IES Live Building Energy and Decarbonisation Management

Integrated Environmental Solutions (IES) is a climate tech company headquartered in Glasgow, United Kingdom, with more than 30 years in building performance simulation. It combines software and consultancy to help designers and owners create high-performing, resource-efficient buildings, and has offices in North America, India, Singapore, Australia and the Middle East.

IES Live applies the company's building physics engine to existing buildings. It collects metering, monitoring and BMS data, compares real performance with a calibrated simulation baseline, and finds waste, faults and performance drift. Experts then recommend low-cost BMS adjustments, model energy and carbon retrofit scenarios, build net-zero investment plans and track verified savings over time. The platform serves building owners, portfolio managers, campuses, public bodies and engineering consultants.

• Data collection: metering, monitoring and BMS data gathered into one platform.
• Baseline and performance gap: calibrated simulation shows expected performance and quantifies the gap.
• Operational energy optimisation: expert recommendations for quick BMS control changes with ROI shown in dashboards.
• Retrofit scenarios: physics-based modelling of energy, carbon, comfort and cost impacts before investing.
• Net-zero investment planning: detailed decarbonisation pathways tailored to business KPIs.
• Tracking and verification: live ROI tracking, monitoring-based commissioning and drift detection.

Owners of Grade A office towers in Vietnam can benchmark operation against a simulated baseline and adjust BMS settings for quick savings. University campuses and hospitals can plan staged retrofits with clear energy and carbon outcomes. Engineering consultants can use the platform to deliver measurement and verification for green building and net-zero projects.

IES states that operational optimisation with little capital spend typically saves 10–20%, while capital retrofits guided by its scenarios can reach 20–70% savings. Physics-based baselines show how a building should perform rather than comparing with last year's bill, so drift and faults are caught early. Verified savings tracking gives auditable evidence for net-zero commitments and links finance, sustainability and facilities teams.

A large share of the building stock that must reach net zero already exists, so owners in Asia face growing pressure to cut operational energy and carbon in existing stock. Green building schemes, net-zero commitments of multinational tenants and investor ESG demands require evidence of verified savings, which favours tools that link monitoring data with engineering-grade simulation.

Headquartered in Glasgow with more than 30 years in building performance analysis; offices include Dublin, North America, India, Melbourne, Singapore and the Middle East. Its IESVE design software and consultancy have been used on projects such as the NTU EcoCampus in Singapore and the BCA Academy zero-energy building.