def test_capacity_factor_zero(request):
"""Test zero capacity factor (CF) in a time slice.
"solar_pv_ppl" is active in "day" and NOT at "night" (CF = 0). It is expected that
the model will be infeasible, because "demand" at night cannot be met.
"""
# Dictionary of technology input/output
tec_dict = {
"solar_pv_ppl": {
"time_origin": [],
"time": ["day", "night"],
"time_dest": ["day", "night"],
},
}
# Build model and solve (should raise GAMS error)
with pytest.raises(ModelError):
make_subannual(
request,
tec_dict,
com_dict={"solar_pv_ppl": {"input": "fuel", "output": "electr"}},
time_steps=TS_0,
demand={"day": 2, "night": 1},
capacity={"solar_pv_ppl": {"inv_cost": 0.2, "technical_lifetime": 5}},
capacity_factor={"solar_pv_ppl": {"day": 0.8, "night": 0}},
)
def test_linked_three_temporal_levels_season_to_year(request):
"""Test three linked temporal levels from season to year.
"season" is linked to "year". Model solves.
"""
# Dictionary of technology input/output
tec_dict = {
"gas_ppl": {
"time_origin": ["winter", "winter"],
"time": ["Jan", "Feb"],
"time_dest": ["year", "year"],
},
"gas_supply": {
"time_origin": [],
"time": ["winter", "summer"],
"time_dest": ["winter", "summer"],
},
}
scen = make_subannual(
request,
tec_dict,
time_steps=TS_1,
demand={"year": 2},
com_dict=COM_DICT,
)
check_solution(scen)
def test_linked_three_temporal_levels_time_act(request):
"""Test three linked temporal levels, with activity only at "time".
Model solves.
"""
# Dictionary of technology input/output
tec_dict = {
"gas_ppl": {
"time_origin": ["year", "year"],
"time": ["summer", "winter"],
"time_dest": ["year", "year"],
},
"gas_supply": {
"time_origin": [],
"time": ["year"],
"time_dest": ["year"],
},
}
scen = make_subannual(
request,
tec_dict,
time_steps=TS_0,
demand={"year": 2},
com_dict=COM_DICT,
)
check_solution(scen)
def test_seasons_to_seasons(request):
"""Test two seasons at one temporal level.
"demand" in two time slices: "summer" and "winter" (duration = 0.5). Model solves
and "gas_supply" is active.
"""
# Dictionary of technology input/output
tec_dict = {
"gas_ppl": {
"time_origin": ["summer", "winter"],
"time": ["summer", "winter"],
"time_dest": ["summer", "winter"],
},
"gas_supply": {
"time_origin": [],
"time": ["summer", "winter"],
"time_dest": ["summer", "winter"],
},
}
scen = make_subannual(
request,
tec_dict,
time_steps=TS_0,
demand={
"summer": 1,
"winter": 1
},
com_dict=COM_DICT,
)
check_solution(scen)
def test_temporal_levels_not_linked(request):
"""Test two unlinked temporal levels.
"gas_ppl" is active in "summer" and NOT linked to "gas_supply" in "year". This
setup should not solve.
"""
tec_dict = TD_0.copy()
tec_dict["gas_ppl"]["time_origin"] = ["summer"]
# Check the model not solve if there is no link between fuel supply and power plant
with pytest.raises(ModelError):
make_subannual(
request,
tec_dict,
time_steps=[("summer", 1, "season", "year")],
demand={"summer": 2},
com_dict=COM_DICT,
)
def test_unlinked_three_temporal_levels(request):
"""Test three unlinked temporal levels.
"month" is defined under "season" BUT "season" not linked to "year". Model should
not solve.
"""
# Check the model shouldn't solve
with pytest.raises(ModelError):
make_subannual(
request,
TD_2,
time_steps=TS_1[
2:], # Exclude the definitions of "summer" and "winter"
demand={
"Jan": 1,
"Feb": 1
},
com_dict=COM_DICT,
)
def test_linked_three_temporal_levels_different_duration(request):
"""Test three linked temporal levels with different duration times.
Model solves, linking "month" through "season" to "year".
"""
scen = make_subannual(
request,
TD_3,
time_steps=TS_1,
demand={"year": 2},
com_dict=COM_DICT,
)
check_solution(scen)
def test_linked_three_temporal_levels_month_to_year(request):
"""Test three linked temporal levels from month to season and year.
"month" is linked to "season", and "season" is linked to "year". Model solves.
"""
scen = make_subannual(
request,
TD_3,
time_steps=TS_1,
demand={"year": 2},
com_dict=COM_DICT,
)
check_solution(scen)
def test_capacity_factor_unequal_time(request):
"""``capacity_factor`` is calculated correctly when ``duration_time`` is uneven."""
# Build model and solve
scen = make_subannual(
request,
TD_0,
time_steps=[
("summer", 0.3, "season", "year"),
("winter", 0.7, "season", "year"),
],
demand={"summer": 2, "winter": 1},
capacity_factor={"gas_ppl": {"summer": 0.8, "winter": 0.8}},
var_cost={"gas_ppl": {"summer": 0.2, "winter": 0.2}},
)
check_solution(scen)
def test_capacity_factor_time(request):
"""``capacity_factor`` is calculated correctly when it varies by time slice."""
# Build model and solve
scen = make_subannual(
request,
TD_0,
time_steps=[
("summer", 0.5, "season", "year"),
("winter", 0.5, "season", "year"),
],
demand={"summer": 2, "winter": 1},
capacity_factor={"gas_ppl": {"summer": 0.8, "winter": 0.6}},
var_cost={"gas_ppl": {"summer": 0.2, "winter": 0.2}},
)
check_solution(scen)
def test_linked_three_temporal_levels(request):
"""Test three linked temporal levels.
"month" is defined under "season", and "season" is linked to "year". Model solves.
"""
scen = make_subannual(
request,
TD_2,
time_steps=TS_1,
demand={
"Jan": 1,
"Feb": 1
},
com_dict=COM_DICT,
)
check_solution(scen)
def test_two_seasons_to_year(request):
"""Test two linked temporal levels with two seasons.
"demand" in two time slices: "summer" and "winter" (duration = 0.5). Model solves
and "gas_supply" is active.
"""
scen = make_subannual(
request,
TD_1,
time_steps=TS_0,
demand={
"summer": 1,
"winter": 1
},
com_dict=COM_DICT,
)
check_solution(scen)
def test_capacity_factor_zero_two(request):
"""Test zero capacity factor (CF) in a time slice.
"solar_pv_ppl" is active in "day" and NOT at "night" (CF = 0). The model output
should show no activity of "solar_pv_ppl" at "night". So, "gas_ppl" is active at
"night", even though a more expensive technology.
"""
# Dictionary of technology input/output
tec_dict = {
"solar_pv_ppl": {
"time_origin": [],
"time": ["day", "night"],
"time_dest": ["day", "night"],
},
"gas_ppl": {
"time_origin": [],
"time": ["day", "night"],
"time_dest": ["day", "night"],
},
}
# Build model and solve
scen = make_subannual(
request,
tec_dict,
com_dict={
"solar_pv_ppl": {"input": "fuel", "output": "electr"},
"gas_ppl": {"input": "fuel", "output": "electr"},
},
time_steps=TS_0,
demand={"day": 2, "night": 1},
capacity={
"solar_pv_ppl": {"inv_cost": 0.1, "technical_lifetime": 5},
"gas_ppl": {"inv_cost": 0.1, "technical_lifetime": 5},
},
capacity_factor={
"solar_pv_ppl": {"day": 0.8, "night": 0},
"gas_ppl": {"day": 0.8, "night": 0.8},
},
var_cost={
"solar_pv_ppl": {"day": 0, "night": 0},
"gas_ppl": {"day": 0.2, "night": 0.2},
},
)
check_solution(scen)
def test_season_to_year(request):
"""Test two linked temporal levels.
Linking "gas_ppl" and "gas_supply" at one temporal level (e.g., "year")
Only one "season" (duration = 1) and "demand" is defined only at "summer"
Model solves and "gas_supply" is active.
"""
tec_dict = TD_0.copy()
tec_dict["gas_ppl"]["time_origin"] = ["year"]
scen = make_subannual(
request,
tec_dict,
time_steps=[("summer", 1, "season", "year")],
demand={"summer": 2},
com_dict=COM_DICT,
)
check_solution(scen)
def test_linked_three_temporal_levels_relative(request):
"""Test three linked temporal levels with a relative time.
"month" is defined under "season", and "season" is linked to "year". Model solves,
but assertions fail.
"""
scen = make_subannual(
request,
TD_2,
time_steps=TS_1,
time_relative=["year", "summer"],
demand={
"Jan": 1,
"Feb": 1
},
com_dict=COM_DICT,
)
# Shouldn't pass with a relative time duration
with pytest.raises(AssertionError):
check_solution(scen)
def test_two_seasons_to_year_relative(request):
"""Test two linked temporal levels with two seasons and a relative time.
"demand" in two time slices: "summer" and "winter" (duration = 0.5). Model solves,
but assertions fail.
"""
scen = make_subannual(
request,
TD_1,
time_steps=TS_0,
time_relative=["year"],
demand={
"summer": 1,
"winter": 1
},
com_dict=COM_DICT,
)
# Shouldn't pass the test, if adding relative duration time
with pytest.raises(AssertionError):
check_solution(scen)