Power systems analysis and renewable energy consulting with proprietary simulation software
TNEI is a UK-based energy consultancy (founded 1999) spanning grid compliance, noise assessment, and low-carbon technology integration. The company owns and develops IPSA 3, a power systems analysis platform built in C++ and Qt. Current hiring is heavily weighted toward senior engineers (4 of 6 engineering roles), paired with active projects in high-performance simulation modules and noise modelling — indicating deepening software product maturity rather than service-only scaling. Pain-point tracking shows friction in converting inbound leads and optimizing digital campaigns, a typical sign of engineering-led firms stepping up sales execution.
TNEI provides technical and strategic advisory services to utilities, project developers, regulators, and industrial clients in conventional and renewable energy. The firm operates from eight offices across the UK, Ireland, South Africa, India, and the USA, employing 51–200 staff. Core services include grid code compliance studies, noise assessment and modelling, environmental due diligence, and energy market analysis. The company also develops and maintains IPSA 3, proprietary software for power systems modelling and analysis used internally and licensed to external clients. Recent project work spans simulation tool development, carbon emissions reporting automation, and demand-generation campaigns targeting power-system stakeholders.
TNEI owns and develops IPSA 3, a power systems analysis platform with integrated modules for grid studies and bespoke modelling. The platform is built on C++ and Qt and used both internally and licensed to external clients.
Headquartered in Manchester, UK. TNEI operates from eight locations: three in the UK (Manchester, Newcastle, Glasgow), plus Dublin, Cape Town, Kochi, and Arizona.
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