Practical support.
Measurable progress.

Energy audits & efficiency

For businesses that want to understand consumption, control energy costs and decide where to invest.

• Site energy reviews and audits
• Electricity, gas and utility data analysis
• Identification of operational and equipment improvements
• Indicative savings, costs and simple payback assessments
• Technical audit and reporting support for ESOS programmes

Your output: a prioritised improvement plan with assumptions, evidence gaps and recommended next steps.

Building energy performance

For owners, occupiers and facilities teams looking to make existing buildings work better.

• Energy performance benchmarking and ongoing monitoring
• Heating, cooling, lighting and building controls reviews
• BMS schedules, setpoints and operational optimisation advice
• Fabric-first retrofit and heat decarbonisation planning
• Options appraisals for efficiency and renewable energy measures

Your output: clear recommendations that connect building operation, comfort and investment priorities.

Carbon & sustainability

For organisations establishing a footprint, responding to customers or developing a credible reduction plan.

• Scope 1, 2 and 3 carbon footprints aligned with the GHG Protocol
• Procurement, spend and business travel data analysis
• Carbon reduction plans and decarbonisation roadmaps
• Practical sustainability strategies, actions and KPIs
• Staff workshops and support to improve data collection

Your output: a documented baseline and a realistic action plan, with transparent methods and clear responsibilities.

Environmental reporting & compliance

For teams needing reliable information for building requirements, reporting, tenders or client requests.

• Display Energy Certificates and associated advisory reports
• Energy and carbon data preparation for SECR reporting
• Carbon reduction plans for procurement requirements
• Environmental questionnaires and tender response support
• Environmental policies and management system documentation

Your output: clear, evidence-based information tailored to the agreed reporting requirement.

Kostan is an Elmhurst Energy accredited DEC assessor. Where a commission requires additional specialist assessment or sign-off, this will be identified and agreed at the outset.