Hydrogen Editing and Proofreading Services

Hydrogen is described in colours and bought in numbers. Green, blue, grey and turquoise are convenient shorthand and legally meaningless; what a customer, a regulator or a subsidy scheme actually cares about is grams of carbon dioxide equivalent per megajoule, measured over a defined boundary. A document that leads with a colour has said nothing that can be verified, and increasingly it has said something that can be challenged.

We edit what hydrogen producers, developers and offtakers produce — carbon intensity statements and their methodologies, production pathway descriptions, certification and guarantee of origin documentation, subsidy and support scheme applications, offtake agreements and their specification schedules, project development documentation and investment material, safety cases and site documentation for hydrogen facilities, planning and permitting submissions, blending and network injection documentation, public and community information material, and customer-facing claims about low-carbon hydrogen. Our editors work on the claim that stands behind the colour.

The carbon intensity claim is where hydrogen documentation is either usable or merely promotional, and it fails on boundaries and inputs rather than on arithmetic. Two producers using identical equipment can publish figures that differ by a factor of four, entirely legitimately, because they drew the boundary differently. We work through these so the system boundary is stated explicitly — what is inside it, what is excluded and why — since the exclusion of upstream methane emissions or of compression and delivery is the single largest source of variation in published figures; so the electricity attribution method is named, distinguishing grid average from a specific contract from genuinely additional generation, because these are three different claims routinely wearing one word; so temporal and geographic matching are addressed if the claim relies on renewable supply, given that annual matching and hourly matching describe different products; so capture rates for methane-based routes are stated with what is and is not captured, as a ninety-five per cent capture rate on part of the process is not a ninety-five per cent capture rate; so the standard or scheme the figure is calculated under is named with its version; and so colour terms, if used at all, appear beside the number rather than instead of it. Claims written this way survive due diligence and comparison.

Everything you send is treated in confidence, including project data, calculations and commercial terms. We are editors rather than carbon accounting, engineering or regulatory specialists, and we offer no view on your production pathway, calculations or compliance. What we can do is make the boundary of the claim visible.