Why Green Hydrogen
Flexible & Plentiful
Green hydrogen can be produced anywhere in the world, using solar, wind or waste-to-resource to generate electricity, green hydrogen can be safely and cost-effectively used by heavy-polluting industries, in our homes and in transportation.
A Truly Sustainable Fuel
Green hydrogen already has an international customer base waiting for reliable, green supplies. With its truly green credentials (renewable energy + water), green hydrogen can fast-track the world’s transition to clean and sustainable energy.
Only green hydrogen is sustainable
Hydrogen comes in many colours, so why are we so focused on green hydrogen? Hydrogen only releases water when it’s burned, but blue, grey or any other colour hydrogen hydrogen can be very carbon intensive, and damaging to the planet.
Grey
Hydrogen
Process:
Steam Methane Reforming (SMR) or Gasification
Source:
Methane or Coal
Blue
Hydrogen
Process:
SMR or Gasification with carbon capture (85-95%)
Source:
Methane or Coal
Turquoise
Hydrogen
Process:
Pyrolysis
Source:
Methane
Green
Hydrogen
Process:
Electrolysis
Source:
Renewable Electricity: From wind, solar or waste-to-resource plants.
Green hydrogen is the only type produced in a carbon-neutral process, and that’s why we are committed to generating no other colour... but how do we get there?
The Process
Step 1: Production
Renewable Sources
The raw energy needed to produce hydrogen can come from wind, solar or waste-to-resource plants.
Step 2: Transformation
Electrolysis
Electricity from the renewable source is then combined with water and electrolysed.
Step 3: Transport & Storage
Gas or Liquid
The hydrogen can be stored and distributed as a gas or as a liquid, via liquefaction.
Step 4:
Ready to Use
Heavy Industry
Steel Industry | Chemical Industry | Refineries
Carbon-intensive industry such as steel, cement and chemicals are responsible for nearly 40 per cent of global carbon dioxide emissions. But as they transition to green hydrogen, carbon emissions will fall and costs of doing business will do likewise (under Emissions Trading Schemes). By generating or purchasing locally produced renewable energy, industry can ensure it has reliable energy supplies, regardless of international developments.
Private & Public Transportation
Shipping | Aviation | Cars | Rail | Trucks & Buses
The transport sector is estimated to be responsible for 20-30% of global CO2 emissions. As a major contributor to emissions, increasing hydrogen in transportation is will be a key driver for green hydrogen economy. From shipping and aviation, private cars, freight, and personal rail transport as well as public transport, transitioning to green hydrogen will make transport sustainable and offer similar refuelling times and driving range as fossil fuels.
Sustainable Heating
Industrial & District Heating
Approximately 30% of the UK’s greenhouse emissions are generated by central heating systems. Green hydrogen and heat pumps can both help reduce this figure. Further, green hydrogen production also generates waste heat as a by-product, which can then be used in district heating solutions which are stable, cost effective and, because the power source is local, highly sustainable for industry, smaller businesses as well as the end consumer.
Power Generation
Affordable | Reliable | Sustainable
Hydrogen is a fuel that burns and therefore can be used for power generation in exactly the way in which we use natural gas or diesel. Whether the requirement is industrial in scale and requires a power station, or the need is more intimate like a generator or CHP to bring localised energy to a specific site, hydrogen is clean, limitless, and reliable. As green hydrogen production increases, clean sustainable power can power the future.
Carbon-Neutral Production
Wind is a free and unlimited resource but the revenues it generates when connected direct to the national grid often fail to deliver the returns investors expect. However, when used as the raw energy for the creation of green hydrogen, wind can become commercially much more rewarding for owners and investors, particularly when supported with battery technology. To achieve this, we work with leading commercial, engineering and technology firms to increase the cost-effectiveness of wind power to meet the growing demand for clean, renewable energy.
New technological advances in design such as Vertical Access Wind Turbines (VAWTS) www.agilewindpower.com, for example, take up less room and can be more efficient in a smaller space and are more wildlife friendly. This technology should be available for commercial onshore wind farms in 2024.
Today, Haush works closely with a number of projects involving wind generation including the landmark H100 Fife project in Scotland led by SGN and RHTL.
Haush is also working in partnership with ARUP and RHTL to complete the planning process and secure the off-take agreements for a 20MW wind-to-hydrogen project in Ayrshire.
Although solar panels have been with us for many years their importance in the green revolution cannot and should not be underestimated. For any commercial organisation the financial realities of an investment decision must make sense in both the short and long term. The money saved in the long-term using solar energy has been well documented, add to that the increased urgency of energy security and solar still comes out on top.
Solar is very reliable as a technology but also relies on the sun to convert the light to energy. However, when combined with a battery pack to store excess energy which can be used at night and solar delivers greater energy security and price predictability, in particular when the electricity produced is then used as a feed for the generation of green hydrogen. Solar farms operating electrolysers directly onsite can significantly increase the revenues generated by solar energy and provide the essential carbon-neutral source material that genuinely green hydrogen demands.
Haush works closely with a number of solar financing groups, such as Green Energi as well as with green tech companies like Renewable Development Wales to identify opportunities to repurpose excess or stored energy to generate the power required to convert electricity into green hydrogen.
Carbon Footprints
The financial benefits of solar energy make solar a compelling investment as well as a cost-effective means of reducing carbon emissions. Our friends at the Energy Saving Trust and Envirosense help companies and individuals across the UK achieve their carbon reduction goals. Haush works closely with the Trust and Envirosense to ensure each project we are involved in maximises its potential to reduce emissions at each stage of the process.
We have been burying waste for years, but the healthcare sector knows solutions exist to turn waste into energy with autoclave technologies. Although autoclave is not a new technology, it is a proven and reliable process and when combined with steam treatment technology, it disposes of black bag waste that would otherwise rot in the ground releasing carbon and methane back into the atmosphere.
This combination of technologies not only reduces the size of black bag waste, MSW, by up to 80% but it also sanitises the waste, removes labels and extracts harmful plastics. Steam treatment technologies breaks down any biodegradable material into a rich homogenous and sustainable fibre which is a green biofuel that can be used to generate heat and electricity through a biomass boiler.
Our partners at WHTE are currently working in combination with autoclave designers, Haush and Ledwood Engineering to build and operate a new facility in the UK.
Haush is working with a number of local authorities in Wales (where there is a moratorium ban on all incineration of waste) and private sites across the UK on feasibility studies for autoclave and steam treatment technology to turn waste into a renewable resource.
The incineration of waste has historically been the most common form of landfill disposal but has been dogged with technical issues, and most importantly still releases harmful emissions into the atmosphere. However, there is no incineration or release of any harmful chemicals during the autoclave process.
Example
For every 300,000 tonnes of waste treated in an autoclave, 225,000 tonnes of Co2 have been saved from release in landfill, plus 95% of all the materials within the black bags will be recycled in the form of green biofuel, or green hydrogen.
Storing Green Hydrogen
Battery Storage
With the growth of on-site energy generation, the demand for storage has never been greater. Without it, any excess energy is either wasted or sold back into the grid which can be costly and complicated, both of which are red flags to potential investors.
As well as storing power generated by renewable sources, batteries improve the resilience of the electricity supply. By storing renewable energy in batteries, the energy can be consumed when it’s most needed and repurposed into the generation of green hydrogen for even greater returns for owners, investors, and the planet. Renewable battery storage means greater control of the energy flow, increased capacity to optimise asset operation and the creation of new revenues as a feedstock for the production of green hydrogen.
Renewable battery storage has significantly increased efficiencies in recent years, and as prices continue to fall, the stage is set for battery storage to becoming even more commercially attractive.
Lithium
It should be noted that the mining of lithium, the major essential element in today’s batteries, is not a green process at all. But when used in conjunction with green energy production batteries offer a considerable improvement over the continued use of fossil fuels.
Combined Heat & Power
Combined Heat and Power (CHP) is a highly efficient process of capturing and using any heat that is a by-product of the electricity-generating process.
CHP is not a single technology, but an energy system of individual components that work together to generate electricity.
CHP generates heat and power simultaneously and can reduce carbon emissions by up to 30% compared to generating them via a traditional boiler and power station.
For example, the heat captured or generated during the process is supplied to a matched heat requirement that would otherwise rely on the more conventional grid and therefore fossil fuels for power.
The advantages of CHP
- Over 80% efficient
- 20% lower energy bills on average
- 30% lower carbon emissions
- Lower transmission and distribution costs
- Greater power security