Hydrogen Editing and Proofreading Services

Hydrogen is described in colors and bought in numbers. Green, blue, gray, and turquoise are convenient shorthand, and they are legally meaningless. What a customer, a regulator, or a subsidy scheme actually cares about is grams of carbon dioxide equivalent per megajoule, measured across a defined boundary. A document leading with a color has said nothing that can be verified, and it has increasingly said something that can be challenged.

The documents we edit for Hydrogen

Carbon intensity statements and the methodologies behind them, production pathway descriptions, certification and guarantee of origin documentation, and subsidy and support scheme applications are the documents on which a hydrogen project is judged, and they are the documents we edit. Offtake agreements and their specification schedules, project development and investment material, safety cases and site documentation, planning and permitting submissions, blending and network injection documentation, community information material, and customer-facing claims about low-carbon hydrogen are edited on the same terms. Our editors work on the claim that stands behind the color.

What the editing involves

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 running identical equipment can publish figures differing by a factor of four, entirely legitimately, because they drew the boundary in different places. A stated 18 grams of carbon dioxide equivalent per megajoule means one thing when compression and delivery sit inside that boundary and something else when they do not. The boundary therefore needs stating explicitly, with what is inside it, what is excluded, and why, since the exclusion of upstream methane emissions is the largest single source of variation in published figures.

The electricity attribution method needs naming as well, because grid average, a specific contract, and genuinely additional generation are three different claims routinely wearing one word. A claim resting on renewable supply has to address temporal and geographic matching. Annual matching and hourly matching describe different products at different prices. Capture rates for methane-based routes carry a comparable trap. A 95 percent capture rate on part of the process is not a 95 percent capture rate, and a figure that never says which streams were captured has not stated a capture rate at all.

The standard or scheme under which a figure is calculated belongs beside the figure, with its version, because the Low Carbon Hydrogen Standard, a national subsidy method, and a voluntary scheme's own protocol do not produce comparable results. Color terms, where they are used at all, work better beside the number than instead of it. Claims written this way survive due diligence, and they survive the comparison a buyer makes against competing quotations.

Confidentiality and the limits of our role

Everything you send us is treated in confidence, including project data, calculations, and commercial terms. We are editors, not carbon accountants, engineers, or regulatory specialists, and we offer no opinion on your production pathway, your calculations, or your compliance. What we can do is make the boundary of the claim visible.