Application · Street lighting

Wind-solar street lighting

A street light needs 40–100 W from dusk to dawn — right when the wind along an open road picks up. A small H-type rotor on the pole top makes the lamp self-powered, with no trench, no cable and no bill.

Wind-solar street lights pair a 300–500 W vertical axis rotor with a 60–120 Wp PV panel on the same pole. The turbine handles the overcast, stormy nights when the panel is idle; together they run a 60 W LED lamp all night on a 12 V / 100 Ah battery sized for three calm, dark days.

Roads are turbulent, gusty places — passing trucks, bridge decks, embankments. The H-type rotor needs no yaw, starts in the swirling air around a lamp post and emits under 45 dB(A), so it can sit above a residential street without complaint.

Typical load profile

Load	Power	Hours/day	Daily energy
LED street lamp 60 W	60 W	11 h	0.66 kWh
Sign / billboard lighting	40 W	6 h	0.24 kWh
CCTV camera + IR	15 W	24 h	0.36 kWh
Controller standby	3 W	24 h	0.07 kWh
Holiday boost mode	0 W	—	0 kWh

Recommended configuration

Recommended model: GH-H5000 (500 W H-type) pole-top mount, 12/24 V
PV panel: 100 Wp on the same pole
Battery: 12 V 100–150 Ah LFP, 3-day autonomy
Controller: Wind-solar hybrid MPPT, light + timer control
Unit cost: USD 630 – 1,200 per pole (lamp, battery, pole excluded)
Daily output: 0.6 – 1.2 kWh at a 4.5 m/s roadside site

Why vertical axis on a lamp post

Traffic and buildings make the wind swirl around a street pole. An H-type rotor takes wind from any direction without a yaw bearing, starts at 2.5 m/s and spins silently above the lamp — the horizontal machines sold for this duty rarely survive the turbulence.

Size the battery for three dark, calm nights

The failure mode is not the turbine; it is the battery bank sold too small. Three nights of a 60 W lamp is 2 kWh — anything less will strand the lamp in the first week of still, overcast weather.

Off the grid is off the trench

Where the grid is more than about 50 m away, trenching cable to a lamp costs more than the whole wind-solar kit. Self-powered poles are the cheapest option the moment civil works enter the picture.

Frequently asked questions

Can a small wind turbine power a street light?

Yes — a 300–500 W rotor with a 100 Wp panel and a 100 Ah battery runs a 60 W LED lamp all night year-round at sites of 4.5 m/s average wind. For signage-only loads a 300 W unit is enough.

How noisy is a turbine on a residential street?

Under 45 dB(A) at 3 m for our H-type rotors — below the night-time limit most municipalities apply and quieter than traffic itself. No yaw movement means no creaking or slapping sounds.

What does a wind-solar street light system cost?

The generation package — rotor, PV panel, hybrid controller and battery — is USD 630–1,200 per pole. Add the lamp head, pole and foundation; complete retrofits typically land at USD 1,400–2,400 per light.