Facts, figures and dates

We have put together an overview of the key facts, figures and dates on our company, our work and the city of Berlin.

High level of supply reliability

Statistically, each Berlin resident will only lose their power supply once every five years. If there is an outage, however, a disruption on the medium voltage grid will last an average of 48 minutes before the energy is flowing again.

Statistically speaking, in Berlin in 2019, every consumer spent approximately 34.6 minutes7 without electricity.1 For comparison: the same figure for Germany as a whole in 2018 was 13.9 minutes.2

Annual consumption of Berlin in 2019

13.3 TWh

Equivalent CO2 emission in 2019

5.33 mio ton

The determination of CO2 emissions is explained in our glossary.

Circuit length4 
Cables and wiring 35,281 km
Cabling coverage 98 %
Incorporated high, medium and low voltage assets4
Substations  72
Grid knodes 17
Grid and customer stations ~ 11,000
Cable distribution cabinets 
(distributed at low voltage level)
~ 16,700

In the metropolis on the Spree, 98 per cent of cables are underground. This means that they are well protected against external influences such as bad weather or lightning, although they can be damaged by underground building work.

Stromnetz Berlin GmbH will invest around 211 million euros on grid infrastructure in 2020, especially the expansion and maintenance of the distribution grid in Berlin. Nearly 60 per cent of this expenditure is going to companies from the Berlin-Brandenburg region. And that is still the case, even though all commissions over 400,000 euros are tendered across Europe.

Geographical data4
Number of residents in the grid area 3,669,491
Geographical size of the grid area 891.12 km2
Investment in grid infrastructure5 EUR ~211 million
Stromnetz Berlin GmbH's employees6 1,307

Electricity generation with a future - local and renewable

There is a clear trend recognisable in Berlin, which will continue to increase over the next few years: alongside traditional electricity plants and CHPs, an increasing number of small, local generation plants are being integrated into our distribution grid. These include photovoltaic plants, wind turbines, thermal power stations in a wide range of sizes and bioenergy plants.

The photovoltaic plants and wind turbines represent a particular challenge for us: they do not produce a constant supply of energy. The time at which generation occurs and the amount of energy generated depend on how the wind is blowing and the sun is shining. However, there are also several smaller local generation plants, e.g. small thermal power stations, which feed in regardless of actual demand.

Plants in Berlin

Distribution across the urban area

Number and generation by plants in Berlin (in 2019)

Number of installations 10
Installed capacity (in kW) 12,401
Energy generated  (in GWh) 29
Number of installations 7,608
Installed capacity  (in kW) 101.087
Energy generated  (in GWh) 73
Number of installations 41
Installed capacity  (in kW) 43,796
Energy generated  (in GWh) 249

All downloads are available in German language only.


1 The average duration of an interruption at low voltage (0.4 kV) due to causes at all voltage levels (110/10/0.4 kV), excluding interruptions caused by force majeure, temporary value for 2019.
2 Federal Network Agency, SAIDI-Wert 2018, www.bundesnetzagentur.de.
3 This data has not been published under statutory publication obligations.
4 The deadline is 31 December 2019.
5 Planned Investment in 2020
6 Status December 2019
7 Explanation: On February 19, 2019, there was an extraordinary, more than 31-hour, large-scale power failure in Berlin-Köpenick with around 34,000 network customers affected, this means commerce and households. The cause was a horizontal earth drilling during bridge construction work on the Salvador Allende Bridge. Both 110 kV feeder cables for the substation Landjäger were damaged. For comparison value SAIDI of 2018 for Stromnetz Berlin: 13.9 minutes.