The energy transition is by no means a linear
process, and an unprecedented transformation of the energy system is required
to break the link between energy and emissions.
What is the most important action to take?
Firstly, availability
of clean energy must be matched with demand. Even as the share of renewables in
electricity production increases, renewable energy sources often remain
intermittent: supply and demand are not always aligned.
Therefore,
efficient energy storage, combined with effective distribution systems, are
crucial to achieving a sustainable energy transition and reliably balancing
supply and demand.
How can new and
emerging energy technologies help balance the variability of renewable energy
supply?
Various crucial
measures must be implemented to address this challenge. Addressing
intermittency requires thoughtful technological solutions.
One aspect to consider
is storage solutions, which stand out as the most commonly cited response to
balance intermittency.
Another pivotal option
is the utilization of hydrogen, offering a solution beyond hydroelectric power and
batteries to balance power systems over varying durations. Balancing offer and
demand of renewable energy – especially in the case of geographical areas
spread around the world - may also involve the conversion of renewable
electricity into hydrogen, hydrogen derivates and ultimately into alternative
fuels. However, further development is necessary in various field, including
ammonia crackers, LOHC, biomass gasification, electrolysis, and offshore H2
production.
Smart grids for energy
conveyance provide numerous benefits. They encompass digital solutions for
supply and demand, extending beyond large-scale assets to include the demand
side. Smart system versatility is crucial as smart grids can optimize the
operational efficiency and utilization of transmission and grid infrastructure.
Flexibility is their key feature, with networks capable of handling
bidirectional energy flow. Network users can contribute energy to the grid
(generated by rooftop photovoltaic panels, for example) and charge to and from
batteries and fuel cells. Efficiency is supported by smart grid technologies
that facilitate demand-side management, real-time adjustments in energy
distribution lines and lower energy prices.
Furthermore, the trade
of energy will also face major developments granted by technology progress: market-enabling
communication between suppliers and consumers will be systematic and
continuous, facilitating better decision-making in terms of pricing strategies
on the supplier side and energy consumption on the consumer side.
While efficient storage capacity is designed and
developed, and reliable and smart grids are adopted as a key enabler of
renewable sources exploitation, to be on track in the journey towards net zero
emissions, GHG must still be lowered through the deployment of carbon capture
utilisation and storage technologies. CCUS can be used as an intermediate
measure to collect the CO2 emissions generated, eventually applying the
circular economy principle to the carbon dioxide which - at least - should not
increase in volume at a global scale. Reutilization of CO2, indeed, encompasses
its combination low carbon H2, producing alternative synthetic energy vectors
which could facilitate the transition by exploiting existing infrastructures
and energy end-users’ technologies.
In this scenario, it is imperative also for carbon
capture technologies to improve and advance in performance, reliability, and
efficiency.
Harnessing
technological innovation is the real game-changer for the energy transition and
will play a leading role in solving the energy trilemma.
Andrea Bombardi
Carbon Reduction Excellence Executive Vice President, RINA