COASTAL ISLAND GRID · 50 HZ

Ridgewatch

Keep the lights steady.

◌ WINDY · GOLDEN HOUR

HEADLAND MICROGRID / SECTOR 04Three turbines · solar field · battery storage · grid intertie

RenewablesStorageGrid

READY

00:00 / 04:00

Live system telemetry

UPDATED IN REAL TIME

Grid frequency

50.00Hz

Nominal 50.00 Hz

Renewable output

—kW

Wind + solar generation

Battery reserve

76%

— kWh stored

Grid exchange

—kW

Positive = import

Total demand

—kW

Base load + EV charging

Unserved energy

0.00kWh

No load shedding

Power balance

Demand · Renewables · Grid + battery

Grid frequency

Live · analytic reference

✦

System ready

Start the simulation to test the microgrid.

7 EVENTS

Plant controls

13 VARIABLES

Operator decision · time critical

Choose how to respond.

Plant variables update live · starting charge applies on reset.HIGH-FIDELITY MODEL

The science · equations & assumptions

Power sources and storage

Pwind ≈ 0.5ρACpηv³ × availability, capped at rated power

Psolar ≈ Pcapacity × sin(α) × (1 − cloud cover)

Pbattery = clamp(Pbias + Kb(50 Hz − f), −Pmax, +Pmax)

Frequency and state of charge

df/dt = −50/(2 H Sbase) × Pimbalance − D(f − 50 Hz)

dSOC/dt = −Pbattery / (3600 × Ecapacity)

Positive battery power means discharge. Positive grid exchange means import; negative means export. The battery responds to frequency through a droop controller while the grid intertie supplies the remaining mismatch up to its limit.

Assumptions and honest simplifications

This is an educational, approximate single-bus model. Wind uses an approximate aerodynamic cubic power curve (ρ = 1.225 kg/m³, Cp = 0.40, drivetrain efficiency = 0.92) and a first-order rotor response; the three visible turbines share one aggregate output. Solar angle is fixed to the selected golden-hour scene. Grid inertia, damping, and battery droop are lumped parameters. Voltage, reactive power, protection coordination, detailed electrochemistry, wake interactions, and AC network transients are not solved. The analytic graph is an open-loop constant-imbalance reference, not a forecast of the full closed-loop controller.

Numerical method: deterministic explicit Euler integration at 1/120 s with an accumulator; graph sampling is decimated for display.