BESS.engineer · training figure
2026 · REV A
FIG. 06
The duck curve — why storage exists
DUTY CYCLE · 24 h
STEP 01 / 05
/
What people use
net to grid · GW
demand
solar
net demand (duck)
evening ramp
net + storage
A day of electricity demand.
‹ PREV
▶ PLAY
NEXT ›
PLATE 06 / DUCK
Illustrative duty cycle — shapes are representative; GW values are tuned for clarity, not a specific ISO.
BESS.engineer