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Batteries for use in wind turbines

SSB Battery SBL

Discover batteries and rechargeable batteries for wind turbines in our B2B online shop.

LiBrick Standard

Discover the LiBrick standard batteries in our online shop - the ideal battery solution for reliable energy storage in wind turbines.

What wind turbines are there and how are they constructed?

A basic distinction is made between horizontal and vertical wind turbines. However, vertical wind turbines are less suitable for large-scale electricity generation and have therefore not become established. The classic horizontal wind turbine has a tower, a rotor with 2 – 3 rotor blades (vanes) and a nacelle in which the technology is housed. The horizontal axis of rotation gives the wind turbine its name.

The height of a horizontal turbine varies and can reach up to 250 metres. However, the highest turbines are located offshore, as there are usually no height restrictions at sea.

How is electricity generated in a wind turbine?

When the wind presses on the aerodynamically shaped rotor blades of the wind turbine, they begin to rotate. Finally, the kinetic energy of the wind is transferred into a rotary motion that drives the generator. This generator converts the mechanical energy into electrical energy, similar to a dynamo. The electricity generated is sent through a transformer, which increases the voltage so that the electricity can be transported more efficiently over long distances and then fed into the grid. 

Our bestsellers for your wind turbines:

SSB Battery SBL7.2-12L

AGM battery | OGiV |
12 V | 7.2 Ah (C20) |
sealed | maintenance free |
10-12 years | measurements:
151 × 65 × 100 mm |
T2 (6.3 mm) connector |
weight: 2.2 kg

SSB Battery SBL9-12L

AGM battery | OGiV |
12 V | 9 Ah (C20) |
sealed | maintenance free |
10-12 years | measurements:
151 × 65 × 100 mm |
T2 (6.3 mm) connector |
weight: 2.6 kg

LiBrick S12-7.5 T2

Type: LiFePO4
Nominal Voltage: 12.8 V
Capacity: 7.5 Ah @ 0.5C
Connection: T2
Housing: ABS, UL-94 V-0
Serial connection: max. 4
Parallel connection: max. 4
Size: 151 x 65 x 92 mm (+2 mm tabs)
Weight: 1.1 kg

LiBrick S24-20 CAN

Type: LiFePO4
Nominal Voltage: 25,6 V
Capacity: 20 Ah @ 0.5C
Connection: M6
Housing: ABS, UL-94 V-0
Serial connection: max. 2
Parallel connection: max. 4
Size: 195 x 130 x 183 mm
Weight: 4.5 kg

How much electricity does a wind turbine generate?

The amount of electricity generated by a wind turbine depends on several factors:

  • Wind conditions
    The stronger the wind blows, the more energy a wind turbine can capture and convert.
  • Rotor blades
    Larger rotor blades capture more wind and can therefore also generate more energy. The largest rotors in offshore wind farms now have a diameter of over 150 metres.
  • Site conditions
    Wind turbines generate more electricity at locations with consistently strong winds. Offshore turbines in the sea therefore generally have better wind conditions than onshore turbines on land.
  • Nominal output of the turbine
    This is the maximum electrical output that the turbine can generate under optimum conditions. Modern wind turbines have a rated output of around 2–5 MW, although the latest offshore turbines can now reach up to 15 MW.

Under good conditions, a modern wind turbine can generate an average of 15 million kWh of electricity per year, which can supply around 4,000 households with green electricity for a year.

Which batteries are suitable for wind turbines?

A good battery for wind turbine systems is essential to avoid replacement costs. The best-known battery types for wind turbines are AGM batteries. An AGM battery absorbs all the acid in the battery, ensuring a high cycle life that allows repeated charging without loss of performance. They are known for storing large amounts of energy over a long period of time and are also suitable for continuous operation. AGM batteries are characterised by a very long service life and low self-discharge. Our SSB Battery SBL, for example, are suitable here.

Alternatively, lithium-ion batteries can also be used in wind turbines. These offer the advantage that they are significantly more cycle-resistant than AGM batteries. While AGM batteries often only manage 300 – 2,000 cycles, this figure is 2,000 – 5,000 for lithium-ion batteries. Lithium-ion batteries also have a higher energy density and can therefore store more energy per unit of weight. One of the disadvantages is the higher purchase costs. Here we recommend our LiBrick series.

Are you also interested in other areas of application? Please find more information here:

Emergency power and UPS systems
Energy storage systems
Intralogistics