Hydrogen fuel cell vehicles have already lost the market competition decisively: approximately 20,000 hydrogen fuel cell vehicles exist globally (mostly in California) versus 20 million battery electric vehicles, a 1,000:1 ratio far more decisive than the VHS/Betamax competition, confirming that hydrogen cars are not viable.

Hydrogen has been promoted as the future fuel since the 1960s-1970s, particularly by the nuclear industry citing prospects of 'free electricity,' but whenever the premise of abundant cheap electricity disappears, hydrogen proposals resurface—a cycle repeating for 60 years without delivering practical solutions.

Green hydrogen electrolysis is approximately 75% efficient in energy conversion, but when that electricity (work) is converted to hydrogen (heat) and then back to electricity via a fuel cell (~50% efficient), and accounting for compression and transportation losses, the round-trip efficiency from electricity to hydrogen to electricity in a fuel cell vehicle is approximately 30%, meaning 70% of input energy is wasted.

Making hydrogen currently generates about 2% of the world's carbon emissions, which is roughly equivalent to the total emissions from all aviation combined.

Battery electric trucks can service UK logistics entirely via fast charging during mandatory 45-minute driver rest breaks (required by law after 4.5 hours of driving) plus warehouse/dock charging, eliminating the need for hydrogen and making battery trucks both cheaper and operationally feasible.

Shipping is only 2% of global carbon emissions, so even if hydrogen or ammonia powered shipping were feasible, decarbonizing shipping should be a very low priority compared to decarbonizing land transport (cars, trucks) and heating, which together are much larger emission sources.

Burning hydrogen in home boilers or cookers produces significantly higher nitrous oxide (NOx) emissions than burning natural gas (methane) because hydrogen burns at higher flame temperatures, exacerbating indoor air quality problems and asthma risk.

Using green hydrogen instead of direct electrification requires 3 to 5 times more renewable electricity generation capacity because the 70% energy loss must be compensated by building additional wind turbines or solar panels, making hydrogen economically uncompetitive when renewable capacity is limited.

Blue hydrogen, produced by capturing CO2 from natural gas reforming, is not genuinely clean because: (1) natural gas (methane) has fugitive methane emissions upstream from extraction, venting, and flaring that are poorly regulated globally and amount to emissions equivalent to Europe's total carbon footprint, and (2) carbon capture and storage is economically unaffordable without incentives and has achieved minimal real-world deployment for decades.

Blue hydrogen production from natural gas requires 40% more feedstock than would be needed if the same energy were delivered as natural gas directly, because carbon carries most of the chemical energy in methane (CH4), and when carbon is stripped off and stored, the remaining hydrogen is a much lower-energy fuel.

Using a heat pump to heat homes is 6 times more efficient than using green hydrogen: a heat pump delivers ~300 kilowatts of heat per 100 kilowatts of renewable electricity input (via 3-4x coefficient of performance from work-to-heat conversion), while green hydrogen delivers only ~50 kilowatts of heat (due to 75% electrolysis efficiency, 50% fuel cell efficiency, and transport/compression losses), requiring 6 times more offshore wind turbines for equivalent heating via hydrogen.

Achieving UK home heating via green hydrogen would require approximately a 10-fold increase in total renewable electricity generation capacity beyond current levels, an order of magnitude no serious energy policy has discussed and one that is physically and practically impossible to deliver.

Delivering hydrogen to filling stations requires 18 tube trailers at 700 bar pressure to carry the energy equivalent of one standard 44-ton diesel fuel tanker, making daily refueling of filling stations economically impossible (1 diesel tanker per day becomes 18 hydrogen trailers per day) and demonstrating why hydrogen infrastructure is fundamentally non-viable.

On-site hydrogen electrolysis at every filling station would require 3 times more electricity grid connection capacity compared to battery charging infrastructure at the same location, making grid investment for hydrogen even more expensive than for battery electric vehicles.

All hydrogen produced globally today is made on-site at the point of use (ammonia factories, petrochemical plants, refineries) because engineers have learned over decades that moving hydrogen is 'next to impossible,' making industrial hydrogen transport a solved negative—the technology avoids it by design.

The Hydrogen Science Coalition's five guiding principles are: (1) only green hydrogen (made via electrolysis with renewable electricity) counts as near-zero emission; (2) hydrogen should be used only where it's a chemical, not a fuel (ammonia, steel, petrochemicals); (3) electrification must not be delayed by hydrogen hype; (4) blending hydrogen into gas grids is wasteful and yields only 6% emissions reduction vs. better efficiency gains; (5) hydrogen must be produced locally, not transported.

Current energy policy has been captured by the hydrogen industry to the point where government policy targets specify '40 gigawatts of hydrogen by 2030' as an end goal, rather than using hydrogen as a means to achieve decarbonization, efficiency, and electrification—reversing the proper policy logic.

Blending hydrogen into the gas grid at typical 20% maximum concentration only dilutes the energy content (like adding water to petrol) and yields only a 6% reduction in carbon emissions, while simply operating existing boilers at proper condensing temperatures achieves far better than 6% emissions reductions—making hydrogen blending a complete waste of effort.

Green hydrogen is promoted as a 'smoke screen' because the renewable electricity required for large-scale green hydrogen production is economically and practically not viable, and every unit of renewable electricity used for hydrogen is electricity not available for direct electrification, making green hydrogen marketing primarily a delay tactic.

Hydrogen is colorless and odorless, so hydrogen leaks in homes are invisible and undetectable by smell, making hydrogen gas grid lines and boilers a safety hazard because leaks cannot be easily identified before they cause hydrogen explosions.