Duncan is a Partner in Osborne Clarke's non-contentious construction team. He specialises in advising developers, funders and contractors on the construction, operation and maintenance of energy and utilities assets.

Duncan's experience includes drafting and negotiating construction, engineering and maintenance contracts for a wide range of renewables, bioenergy and energy-from-waste projects both in the UK and internationally. He advised on EPC and O&M arrangements for two of the first commercial scale battery storage projects in the UK and has acted on large-scale solar projects in the Middle East and Africa. He also spent time on secondment at an international utilities company, advising on all aspects of their construction needs.

Duncan also works closely with asset management teams to manage ongoing contractual relationships and to optimise and repower assets during the operational phase.

Away from the energy sector, Duncan advises clients in the logistics industry and has particular experience in advising on projects which utilise non-traditional construction methods, such as modular construction.

"Duncan Parker is a rising star, very bright" - Legal 500 2019

Helping you succeed in tomorrow's world

Decarbonisation and sustainability underpin my practice. I help clients on a daily basis to realise projects that are making a real difference to the aim of achieving a net-zero society.

Foresight Group

Advised on EPC and O&M arrangements across their portfolio of UK solar and battery storage projects.


Advised on the supply, installation and maintenance contracts for a 50MW battery storage project in Southampton.

Bioenergy Infrastructure Group

Advised the project SPV on EPC and O&M arrangements for the 22MW Northacre energy-from-waste project.


Advised on the consolidation of O&M arrangements across their UK solar portfolio, one of the largest exercises of its kind in the UK, read more.

Nexterra Systems Corp

Negotiated a long-term O&M contract for the Welland biomass project.


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