Wind turbine IstaBreeze I-1000 | 1 kW | 48 V | off-grid / hybrid

Wind turbine IstaBreeze I-1000 | 1 kW | 48 V | off-grid / hybrid

IstaBreeze I-1000 is a wind turbine for systems with an output of 48 V AC.

Key specifications

• Rated power: 1.0 kW
• Maximum power: 1200 W
• Output voltage: 48 V AC
• Output: three-phase AC
• Start-up wind speed: 3.0 m/s
• Practical generation from: 4.5 m/s (indicative)
• Rotor diameter: 1.8 m
• Weight: 18 kg

Key features

• 48 V system voltage: designed for use with small battery banks through an appropriate controller, with energy storage and self-consumption as priorities.
• Rated power of 1 kW: suitable for small off-grid and recreational systems, providing supplementary energy in favourable wind conditions.
• Very lightweight construction makes transport, assembly and installation on simple masts easier, including at seasonal sites.
• Straightforward system design: integration with compatible 48 V charge controllers and battery inverters without extensive infrastructure.
• Quiet operation and low vibration are beneficial for recreational applications and occasionally occupied properties.

Who it is for

• Individuals building small off-grid or hybrid systems based on 48 V battery storage.
• Owners of recreational plots, holiday cabins and small seasonal properties where simple installation and access to energy in favourable wind conditions are priorities.
• Users seeking a supplementary energy source for charging 48 V batteries alongside solar PV.
• Installers building small, straightforward battery systems with limited power demand.

Applications

• Charging 48 V battery banks in small off-grid systems supplying lighting, electronics, monitoring equipment and small loads.
• Recreational and seasonal installations where the turbine provides supplementary energy when wind conditions permit.
• Supplementing solar PV during periods of low sunlight or at night.
• Simple individual projects where low weight, easy assembly and minimal ground disturbance matter.

System integration

Important: The turbine produces three-phase AC. Correct operation with battery storage requires a charge controller matched to the system voltage.

Installation guidance

• Controller/rectifier and protection selection depends on the 48 V system design and the nature of the loads.

Real-world operating conditions

Energy production depends directly on local wind conditions. In practice, horizontal-axis wind turbines (HAWT) usually produce more consistently above approximately 4-5 m/s and perform best with smooth, minimally turbulent airflow. Sites with frequent turbulence caused by buildings, trees or terrain obstacles may produce less energy, reflecting the operating characteristics of HAWT turbines.

Power curve: reference points

The reference points below help compare turbine output at specific wind speeds.

Wind speed (m/s)	Power
3.0	0.03 kW
5.0	0.11 kW
7.0	0.25 kW
10.0	0.47 kW
12.0	0.65 kW
15.0	1.12 kW

Power curve:

Selected technical specifications

Model	I-1000
Rated power	1000 W
Maximum power	1200 W
Rated voltage	48 V AC
Start-up wind speed	3 m/s
Rated wind speed	14–15 m/s
Rotor diameter	180 cm
Blade material	Composite
Current	21 A
Blade length	87 cm
Noise level	48 dB
Set weight	19 kg

Package contents

Three blades, mounting bolts, flange, generator, manual, nose cone and tail

Downloads

• Manufacturer declaration of conformity (EN, PDF)
• Product datasheet (English)

When this model is not recommended

• Applications requiring high, steady energy output or supplying high-power loads.
• Operation without a dedicated charge controller and appropriate protection on the 48 V battery side.
• Installation in highly turbulent locations, such as low masts or sites near buildings and trees, where energy yield will be marginal.

FAQ

How does the 48 V version differ from the 24 V version?
It is a different voltage version. 48 V is more commonly used in hybrid systems and larger battery banks; the controller must match the system voltage.

Does the turbine connect directly to 48 V batteries?
No. The output is three-phase AC; a controller/rectifier is required.

At what wind speed can useful generation be expected?
Usually from approximately 4-5 m/s with good airflow. Location is critical.