H2Tech - Q3 2021 - 14

EXECUTIVE VIEWPOINT
generating capacity will be needed to fulfill
the H2
installed base.5
demand forecast by 2050 with green
H2-nearly five times the world's current
Blue H2
production can be
scaled more easily and represents the most
feasible option over the next decade.
with very high H2
Although operating large gas turbines
content fuel mixtures is
not economically viable today, it is within
reach for smaller gas turbines. However,
even blending in small amounts of H2
with
the natural gas fuel stream (i.e., co-firing)
can yield impactful emissions reductions.
For example, adding just 10% volume of H2
reduces CO2
turbine emissions by 2.7%.
Although this may not seem significant,
for a 600-MW combined-cycle power
plant that runs for 6,000 hr/yr at an average
60% efficiency, it would result in a reduction
of approximately 1.26 MM metric
t of CO2
275,000
engines
-
(ICEs) off the road.a
Many of the gas turbines at Siemens
Energy are already capable of burning H2
rich fuel streams. At present, we have 55
gas-H2
turbines in operation worldwide,
FIG. 1. Process flow for supercritical CO2
-based waste heat-to-power solution.
which have amassed more than 2.5 MM
operating hours since the 1960s. Our
goal is for all of our turbine models to be
compatible with 100% H2
fuel by 2030.
We are also taking steps to avoid technological
obsolescence by ensuring that all
new turbine installations can be upgraded
to handle 100% H2
fuel streams. Doing
so will enable units that are currently
installed (or will be in the near future) to
be converted into even more powerful
decarbonization agents.
FIG. 2. The H2 economy will support global decarbonization efforts in myriad ways.
Partnerships to drive innovation.
While leveraging existing infrastructure
and technologies will be critical to driving
a successful energy transition, it is only
one piece of the puzzle. The path to an H2
economy-and, more broadly, to carbon
neutrality-will require co-creation and
collaboration among diverse public and
private industry stakeholders to drive innovation.
After all, no single company on
the planet can reverse the tide of global
warming singlehandedly.
Over the past 12 months, I have been
extremely encouraged by the growing
number of leaders who have embraced
this mindset. Never before have so many
companies in the energy space showed a
willingness to come together and invest
in bringing new emissions-reducing technologies
to market.
We have been very active in our efforts
FIG. 3. Siemens Energy Silyzer 300 PEM module array.
14 Q3 2021 | H2-Tech.com
to co-create with customers and other
technology providers to accelerate decarbonization
through innovation-the
TC Energy collaboration is one example.
-the equivalent of taking nearly
internal combustion
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H2Tech - Q3 2021

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