General Technical Questions
A water molecule is made up of two hydrogen atoms and one oxygen atom. Hence the name H2O.
Water electrolysis is the process of using electricity to split water into hydrogen and oxygen.
Electrolysis takes place within a unit known as an electrolyser. An electrolyser consists of a negatively charged cathode and a positively charged anode, separated by an electrolyte.
The electrolyte can be solid metal material such as zirconium as in the case of Polymer Exchange Membrane electrolysers.
The electrolyte can also be a liquid alkaline solution of potassium or sodium hydroxide as in the case of Alkaline electrolysers.
The process of electrolysis:
- Water reacts at the anode to form oxygen and positively charged hydrogen ions (protons).
- The electrons flow through an external circuit and the hydrogen ions selectively move across the PEM to the cathode.
- At the cathode, hydrogen ions combine with electrons from the external circuit to form hydrogen gas.
- Anode Reaction: 2H2O → O2 + 4H+ + 4e-
- Cathode Reaction: 4H+ + 4e- → 2H2
Renewable energy is energy derived from natural sources that are replenished at a higher rate than they are consumed. Such as solar, wind, geothermal, hydro and biomass.
- Hydrogen is the simplest, most abundant element in the universe.
- It is very light and has the lowest molecular weight of all elements.
- It is odourless, colourless and tasteless. It is highly permeable, flammable and easily ignited.
- Hydrogen has a high energy content by weight but the energy density per volume is low at standard pressure and temperature.
- This has a direct impact for storage and would require hydrogen to be compressed and stored under pressure or converted to cryogenic liquid hydrogen.
There is no universally accepted colour spectrum for hydrogen and even up to a rainbow of nine colours have been used to describe hydrogen.
IRENA has simplified the different types of hydrogen as follows:
Grey Hydrogen: Is hydrogen produced through the Steam Methane Reforming (SMR) of natural gas or through coal gasification. Coal gasification is the most carbon intensive method of producing hydrogen and brown/black hydrogen is often used to describe hydrogen produced through this process.
Blue Hydrogen: Is hydrogen produced through SMR of natural gas or coal gasification, but the carbon dioxide that is produced is captured and stored or processed for industrial use (carbon capture utilization and storage). CCUS however, does not result in all of the carbon dioxide being captured.
Turquoise Hydrogen: Is hydrogen extracted by using the thermal splitting of methane via methane pyrolysis. This is an emerging field and has not yet been proven on an industrial level.
Green Hydrogen: Is hydrogen produced via the electrolysis of water using renewable energy sources.
As with all fuels, there is a level of danger associated with hydrogen.
By nature hydrogen is non-toxic. Also, hydrogen is very light as compared to air which would allow it to dissipate easily.
By understanding the properties of hydrogen, specific engineering controls and procedures can be implemented to ensure its safe use and to minimise the risks.
|Hydrogen is very light and has the lowest molecular weight of all chemical species||– Hydrogen will disperse easily when released
– Low molecular weight can impact performance of rotating machinery
– Material selection needs to cater for hydrogen embrittlement potential
|Hydrogen is odorless, colorless and tasteless|| – Difficult for humans to detect
– Automated detection methods must be employed
– Adequate ventilation required
|Hydrogen is highly flammable and easily ignited|| – Adequate separation from ignition sources
– Fire protection measures must consider the potential for re-ignition and explosion
|Hydrogen burns with a high temperature, nearly invisible flame||– Difficult to detect fire
– Due diligence must be applied in the selection of fire and gas detection devices
Hydrogen production via water electrolysis is a proven mature technology, around for approximately 100 years. However, the electrolysers produced and in operation are on the small scale and not in the MW range.
NewGen Project Technical Questions
- The NewGen Project involves the development of a Hydrogen Production Facility to produce hydrogen through the electrolysis of water using renewable and energy-efficient power sources.
- Raw water for the electrolysis will be supplied from the nation’s public utility company, Water & Sewerage Authority (WASA).
- Electricity will be supplied from another public utility company, Trinidad & Tobago Electricity Commission (T&TEC) grid network, via redundant 220kV, 60Hz transmission lines.
- Power to the facility will be allocated from a combination of green power from the Lightsourcebp solar power facility, and carbon neutral power from converting simple cycle machines at PowerGen to combined cycle.
- The full output of the hydrogen produced at the facility will be supplied to the existing GORTT/Yara Tringen 2 Ammonia Production Plant in Point Lisas, Trinidad and Tobago, which currently produces ammonia using hydrogen generated via steam methane reforming.
- This will allow production of ammonia from a green/carbon neutral hydrogen source, which will represent a portion of the total hydrogen supply for the Tringen 2 facility. The balance of the hydrogen requirement will continue to be met via steam methane reforming of natural gas.
Trinidad and Tobago is the largest industrial base in the Caribbean and is one of the world’s largest exporters of ammonia and methanol. Consequently, Trinidad & Tobago is ranked within the top 5 in CO2 emissions per capita in the world.
There is currently a shortage of natural gas to supply the downstream petrochemical industry. Additionally, the cost of natural gas production has escalated in Trinidad recently.
The hydrogen produced from the NewGen facility increases the availability of feedstock, while simultaneously providing a greener input compared to hydrogen produced via steam reforming of natural gas.
- Serves as a catalyst to decarbonize the energy sector and accelerate the transition to a hydrogen economy
- Assists in decarbonizing the petrochemical sector and secures its viability by providing a greener hydrogen feedstock
- Results in reduced GHGs as ammonia is produced through a greener feedstock
- Helps T&T achieve Paris agreement targets
- Resolidifies T&T position as a leader in the energy sector
- Efficiency gains
This project requires 130MW of power which will be allocated from a combination of renewable energy power and energy-efficient power.
- Renewable energy from new Lighsourcebp solar facilities at Brechin Castle and Orange Grove
- Energy-efficient power by retrofitting existing simple cycle machines at PowerGen Pt Lisas to combined cycle machines where waste heat which is currently vented to the atmosphere is captured and used for additional power generation with negligible increase in GHGs
The power required for the project will be produced for the project and therefore would not negatively impact the nation’s energy supply to existing residential, commercial and industrial customers.
Approximately 160,000 gpd of water is required for the electrolysis process which will be supplied from WASA. This accounts for approximately 0.1% of the nation’s water supply.
However, there will be a consequent reduction in the water demand at the ammonia facility as hydrogen produced through the steam methane reforming process will be displaced by hydrogen produced through electrolysis.
Essentially, there will be a net zero increase in overall water demand.
The NewGen facility will not cause the release of greenhouse gas emissions from the production of hydrogen via electrolysis.
The product carbon footprint for the facility is directly influenced by the carbon intensity of the power sources. The project will utilize renewable power from the Lightsourcebp solar facility and energy-efficient power by retrofitting existing simple cycle machines to combined cycle. As the solar facility will result in zero emissions, the product carbon footprint for the NewGen facility will be determined by the incremental gas consumption associated with the operation of combined cycle machines, which is negligible.
The NewGen project will result in an average reduction of 165,000 metric tonnes Co2 per year.
Currently, an offtaker has not been identified for the volume of oxygen produced during electrolysis. All of the oxygen produced would be vented safely to atmosphere.
Both Alkaline technology and Proton Exchange Membrane technology have been approved for use on this project as they met the required technology readiness level and can be commercially manufactured at the required scale of the project.
NewGen Project General Questions
The NewGen Energy Limited was developed by local private company Kenesjay Green Limited (KGL).
In 2022, NewGen Energy Limited welcomed Hydrogène De France (HDF) as a 70% majority shareholder and partner developer for the NewGen Project with the remaining 30% being retained by KGL.
- KGL is a sustainable energy firm, leading the way in energy transition for the Caribbean. Based in Trinidad and Tobago, the company is a subsidiary of Kenesjay Systems Limited, and a knowledgeable resource for innovative ideas and solutions for the sector. Focussed on the transformation and decarbonisation of existing brownfield energy-based industries in the region, and maximising sustainable energy prospects for new industrial ‘greenfield’ projects, KGL aims to develop a pipeline of environmentally responsible, techno-economic project opportunities, which offer pioneering first-mover advantages.
- HDF is a global pioneer in Hydrogen Power. HDF develops and operates large-scale Hydrogen-to-Power infrastructure to provide firm or on-demand electricity from renewable energy sources (wind or solar), combined with its own Multi-Megawatt hydrogen fuel cells. HDF has operations in the Caribbean region where it has successfully developed and financed Centrale Electrique de l’Ouest Guyanais (CEOG) – the largest green hydrogen storage in the world in French Guiana.
The targeted timeline for operation of the NewGen facility is Q2 2027.
The estimated cost of the NewGen project upon completion is 200+ million USD.
The NewGen project is in the early engineering design known as the Pre-FEED stage (Front End Engineering Design).
FEED is scheduled to commence in Jan 2023.
What is the relationship between the Trinidad and Tobago National Gas Company and NewGen Energy Limited?
The NGC is the sole aggregator and distributor of natural gas on the island.
A Head of agreement was signed between NGC and NewGen on August 4th 2022.
This HOA affirms that NGC will take an enabling role for feedstock supply and hydrogen off-take for NewGen.
Please visit our website www.newgenenergyltd.com for more information and you can also contact us through the contact info listed on the site.
The NewGen logo represents opportunity for transitioning the energy landscape of Trinidad and Tobago. Made up of green, grey and blue, the soft acknowledgement of a hydrogen molecule shows the various types of hydrogen that NewGen will be offering with a focus on grey and green energy generation.
With environmental and energy synergies, NewGen will represent the harmonious balance of nature working with nature.
NewGen Energy Limited is:
- Clean energy
- Crisp energy
- New energy
NewGen energy is new energy for our new generation.