Capt N you have tripped your good self up. As an amateur in this area you are forgiven.
The huge interest in HYDROGEN has far more to do with the eventually dwindling reserves of oil.
Also diesel pollution.
So eventually an alternative source of energy will be required.
As you will realize by now sun and wind will only ever be an unreliable secondary source unless man can learn to control the wind!!!!!
Now the companies developing HYDROGEN fuel and equipment using the falsity of carbon dioxide as a cause of Global Warming is simply an innocent selling misuse of a HOAX to encourage the swing over to HYDROGEN.
There are very many very gullible and uninformed people on the planet. Just look at the 2 trolls that hang around like a bad smell repeatedly displaying their gross ignorance of just about everything. But then they do have malformed malfunctioning brains as a result of genetic mutation to an earlier more primitive form.
Now for some FACTS. It is appreciated the 2 dumb trolls with their obvious low intelligence and very poor education will be unable to understand a word of this. So their gross ignorance is protected!!!!
2. The Solution: Why Hydrogen for Energy2.1 Hydrogen is the most abundant and lightest of the elements. It is odorless and nontoxic. It has the highest energy content of common fuels by weight -- nearly three times that of gasoline.
Hydrogen is not found free in nature and must be “extracted” from diverse sources: fossil energy, renewable energy, nuclear energy and the electrolysis of water. A separate energy source (electricity, heat or light) is required to “produce” (extract or reform) the hydrogen. Today, most hydrogen is made from fossil energy using steam methane reforming (SMR) of natural gas, followed by partial oxidation (POX) and autothermal reforming (ATR), which combines SMR and POX processes.
2.2 Like electricity, hydrogen is an “energy carrier.” It can be used in a full range of applications in all sectors of the economy: transportation, power, industry, and buildings.
2.3 Hydrogen can be converted to electricity by a fuel cell, an electrochemical device. Unlike batteries, fuel cells operate continuously in the presence of hydrogen and oxygen (in ambient air).
Fuel cells are “scalable” and may be used in very small to very large sizes. The only byproducts of fuel cells are heat and water.
2.4 Hydrogen’s relationship to renewables cannot be overemphasized. The 2015 IEA Technology Roadmap for Hydrogen and Fuel Cells recognizes that hydrogen with a low-carbon footprint has the potential to facilitate significant reductions in energy-related CO2 emissions. Thus, use of renewable feedstocks for hydrogen production is very attractive from the environmental perspective.
2.5 Today, the world is witnessing significant growth in the installed capacity of renewables (primarily wind and solar). Onshore wind is the leader, accounting for over one-third of the renewable capacity and generation increase. Solar PV follows, accounting for another third of deployment.
Hydropower is also growing and accounts for one-fifth of new renewable additions, and over a quarter of the growth in renewable energy electricity generation.1
2.6 As a result of this growth, the electricity grid must sometimes restrict uptake of renewable electricity when the grid is full (saturated) in order to balance electricity supply and demand.
Consequently, renewable electricity production is curtailed. However, use of hydrogen for storage of renewable electricity (converted via water electrolysis) is a game changer. Hydrogen and 6 IEA Hydrogen electricity are in fact complementary energy carriers: hydrogen can be converted to electricity, and electricity can be converted to hydrogen.
2.7 Use of hydrogen for energy storage (short term, seasonal, long-term reserve) is sometimes referred to as “time shifting with hydrogen.”2 Underground storage of hydrogen in salt caverns and depleted oil wells is a well-established practice. The IEA HIA Strategic Plan 2015-2020 concludes that “Storage in effect optimizes the H2 value chain,”3 acting as a reserve and enhancing the security of energy supply.
2.8 Hydrogen reserves can help to buffer the electricity system, enhancing system security. Traditionally, the electricity system maintains a reserve of approximately 15-20% as a standard safety buffer to ensure smooth functioning. In the future, given increased demand for electricity, the fossil fuel supply alone may not provide sufficient buffer, so hydrogen can be used to fill the gap.
2.9 Hydrogen can be used for sector coupling by converting excess electricity (power) supply to hydrogen for non-power applications in transport, industry and buildings (heat) sectors. Inter-sectoral use enhances the integration of the energy system and leverages investment for development of the hydrogen infrastructure. Storage and sector coupling can also reduce the need for investment in new electricity transmission capacity.
2.10 Hydrogen can be used for decentralized power production in a future energy system that is increasingly inclined to consider distributed generation as an option to exclusively centralized power production. “H2 investment risk is reduced if H2 production takes place in decentralized electrolyzers, especially with low cost renewables.”4
Read the full story herehttp://ieahydrogen.org/pdfs/Global-Outlook-and-Trends-for-Hydrogen_Dec2017_WEB.a...