Modeling Electricity Markets and Energy Systems: Challenges and Opportunities
Energies,
Journal Year:
2025,
Volume and Issue:
18(2), P. 245 - 245
Published: Jan. 8, 2025
From
the
dawn
of
Industrial
Revolution,
energy
was
predominantly
produced
by
conventional
technologies,
relying
on
a
heat
source
(mostly
from
combustion
fossil
fuels)
and
turning
steam
turbines
[...]
Language: Английский
Seasonal compound renewable energy droughts in the Unites States
Environmental Research Energy,
Journal Year:
2025,
Volume and Issue:
2(2), P. 025005 - 025005
Published: April 14, 2025
Abstract
Variable
renewable
energy
(VRE)
droughts
are
periods
of
low
electricity
production
due
to
natural
variability
in
the
weather
and
climate.
These
compound
occur
when
two
or
more
(typically
wind
solar)
generation
sources
availability
conditions
at
same
time.
Compound
solar
most
commonly
studied
hourly
daily
timescale
short-term
nature
markets
battery
storage
capacity.
However
seasonal
time
scale
allows
for
examination
broader
climate
hydrologic
patterns
that
influence
a
portfolio
inform
needs
long-duration
storage.
In
this
study,
we
use
newly
developed
dataset
coincident
characterize
VRE
which
include
wind,
hydropower
grid-relevant
spatial
scales
across
contiguous
United
States
(US).
Along
with
frequency,
duration,
magnitude,
scale,
specifically
examine
these
composite
analysis.
Results
historical
period
(1982–2019)
indicate
can
last
up
5
months
frequently
Fall.
While
not
an
established
‘climate
stress’
consider
reliability
studies
yet,
demonstrate
impact
on
resource
adequacy
study
over
Western
US
interconnection
using
nodal
bulk
power
grid
model.
We
further
discuss
how
VREs
sizing
market
incentives
manage
extreme
events
like
heat
waves
cold
snaps
while
considering
conditions.
Language: Английский
Wind and solar energy droughts: Potential impacts on energy system dynamics and research needs
Journal of Renewable and Sustainable Energy,
Journal Year:
2025,
Volume and Issue:
17(2)
Published: March 1, 2025
This
Perspective
article
provides
a
brief
overview
of
the
topic
wind
and
solar
energy
droughts
(henceforth
WSDs).
It
does
not
attempt
to
provide
complete
literature
review
subject
but
rather
highlights
some
main
concepts
associated
with
WSDs.
These
include
drought
definitions
metrics;
meteorological
conditions
producing
WSDs;
comparison
their
characteristics
hydrologic
hydropower
droughts;
model-based
observational
datasets
useful
for
WSD
analyses;
linkage
WSDs
transmission,
storage,
demand
response;
potential
impacts
vs
variations;
flood
events;
predictability;
dependency
on
climate
modes
variability;
change
special
challenge
evaluating
in
developing
countries
that
have
limited
historical
data
available.
Finally,
manuscript
identifies
research
areas
authors
believe
would
immediate
benefit
system
planners.
Language: Английский
Power sector benefits of flexible heat pumps in 2030 scenarios
Communications Earth & Environment,
Journal Year:
2024,
Volume and Issue:
5(1)
Published: Nov. 20, 2024
Abstract
Heat
pumps
play
a
major
role
in
decreasing
fossil
fuel
use
heating.
They
increase
electricity
demand,
but
could
also
foster
the
system
integration
of
variable
renewable
energy
sources.
We
analyze
three
scenarios
for
expanding
decentralized
heat
Germany
by
2030,
focusing
on
buffer
storage.
Using
an
open-source
power
sector
model,
we
assess
costs,
capacity
investments,
and
emissions
effects.
find
that
investments
solar
photovoltaics
can
cost-effectively
accompany
roll-out
case
wind
expansion
potentials
are
limited.
Results
further
show
short-duration
storage
substantially
reduces
need
firm
battery
Larger
sizes
do
not
change
results.
Increasing
number
from
1.7
to
10
million
units
annually
save
more
than
half
Germany’s
private
commercial
natural
gas
consumption
around
households’
building-related
CO
2
emissions.
Language: Английский