In the sun-scorched landscapes of Dhi Qar, Iraq, a groundbreaking study led by Hassan Munther from the Department of Mechanical Engineering at the University of Diyala is paving the way for a greener future in energy production. The research, published in the journal Unconventional Resources, delves into the techno-economic and environmental evaluation of green hydrogen co-firing in a 570 MWe gas turbine combined cycle (GTCC) power plant. This isn’t just about reducing carbon emissions; it’s about reimagining how we power our world.
Munther and his team explored three scenarios, each with varying hydrogen mole fractions—15%, 30%, and 50%—co-fired with natural gas. The goal? To understand the interconnections between renewable energy generation, hydrogen production, storage, and the operational demands of hydrogen co-fired GTCC power plants. “The potential for green hydrogen to revolutionize the energy sector is immense,” Munther explains. “By integrating solar and wind energy, we can produce hydrogen that not only reduces CO2 emissions but also optimizes the use of natural gas.”
The study reveals that green hydrogen production can range from 12,082 to 54,442.9 tonnes annually, with a cost of hydrogen (COH) between $3.29 and $3.16 per kilogram. This economic viability is a game-changer for large-scale hydrogen production. “The cost savings from avoided CO2 emissions costs are significant,” Munther notes, “ranging from $6.79 to $31.08 million annually.”
But the benefits don’t stop at cost savings. The research shows that hydrogen consumption in the GTCC fuel mixture can reduce CO2 emissions by 67,864.3 to 310,831.4 tonnes annually. Natural gas use decreases by 5.22% to 29.1%, making the transition to green hydrogen not just environmentally beneficial but also commercially attractive.
However, the net present cost (NPC) for the green hydrogen project ranges from $412.9 million to $1.785 billion, and the levelized cost of energy (LCOE) for hydrogen co-combustion in the GTCC power plant ranges from $113.54 to $127.74 per MWh, compared to $107.93 per MWh for 100% natural gas-based power generation. These figures highlight the initial investment required but also the long-term economic benefits.
The study, published in Unconventional Resources, which translates to ‘Non-traditional Resources’ in English, underscores the potential of green hydrogen to reshape the energy landscape. As the world moves towards carbon neutrality, research like Munther’s provides a roadmap for integrating renewable energy sources with existing infrastructure. The findings not only offer a technical and economic blueprint but also inspire a vision of a future where green hydrogen plays a pivotal role in sustainable energy production. This research could influence policy decisions, attract investment, and drive innovation in the energy sector, making it a cornerstone for future developments in green energy technology.
