Financing Sustainable Aviation Fuels 2025
Page 16 of 44 · WEF_Financing_Sustainable_Aviation_Fuels_2025.pdf
2.2 Fundraising challenges across the project lifecycle
Each phase is characterized by multiple risks,
summarized into four main categories:
–Policy risk: longevity of incentives, instability
and inconsistency of policies, including unclear
or short-term mandates, incentives that favour
use of renewable fuels in sectors other than
aviation, incompatible regional standards, issues
in granting operations or environmental permits
and trade barriers.
–Market risk: uncertainty and volatility in SAF
prices when no fixed-price structure exists,
vague or non-binding demand signals, short-
term or small number of offtake agreements,
offtaker creditworthiness, risk of buyers or
producers defaulting and lack of alignment
on book-and-claim systems. –Technology risk: technical maturity of FOAK
plants, as well as challenges in achieving
cost-competitive production and scaling-
up operations.
–Feedstock risk: feedstock availability (e.g. used
cooking oil for HEFA, biogenic CO2 for PtL),
high and volatile price levels and sustainability
concerns (e.g. indirect land-use change,
competition with food).
Figure 8 provides a high-level overview of which
risks are most pertinent for each stage, though
it is important to note that the above risks are
often interconnected, with policy longevity
and consistency being a major driver of the
willingness to enter into long term offtakes,
as an example.
Overview of key risks by phase FIGURE 7
Certification – absence of globally aligned sustainability certification schemes (e.g. CORSIA/GREET/RED)
Permitting – permits
not secured on timePolicy riskConceptualization
and pre-feasibility1
Feasibility and
front-end engineering
and design (FEED)2
Project financing
and final investment
decision (FID)3
Construction and
implementation4
Commissioning
and operation5
Stability/longevity – limited stability of SAF policies which are not in line with SAF lifecycle, better incentives for other renewable
fuels (e.g. biodiesel) resulting in repurposing of SAF facilities
Market risk
Technology
risk
Feedstock
risk
Availability – feedstock sourcing challenges and high prices driven by constrained supply,
especially for HEFA pathway
Sustainability – concerns around sustainability of feedstock, especially for
HEFA and AtJ Scaling – limited
scaling potential
driven by too large
green premiumDefault – existing
customers default or
exercise the exit clause
Construction – delays
driven by operational
execution challengesScaling – limited
economies of scale
driven by operational
challengesOff-take – limited
appetite to enter into
long-term agreementsCommitments – uncertainty around mechanisms
related to mandated demand, limited certainty
coming from voluntary demand commitments
Competitiveness – preference for alternative
pathways (e.g. UK HEFA cap) or emergence
of cheaper production hubsFirst-of-a-kind plants – uncertainty driven by low technical maturity
of proposed technology, especially FOAK facilities (e.g. G-FT, PtL)
Source: Kearney analysis for Airports of Tomorrow, building on stakeholder input.
Financing Sustainable Aviation Fuels 16
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