Solar power in Germany

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Solar power Germany 2016 fact sheet: electricity generation, development, investments, capacity, employment and the public opinion.[1]
German electricity by source in 2020
NuclearBrown CoalHard CoalNatural GasWindSolarBiomassHydroCircle frame.svg
  •   Nuclear: 60.9 TWh (12.6%)
  •   Brown Coal: 81.94 TWh (16.9%)
  •   Hard Coal: 35.56 TWh (7.4%)
  •   Natural Gas: 59.08 TWh (12.2%)
  •   Wind: 131.69 TWh (27.2%)
  •   Solar: 50.7 TWh (10.5%)
  •   Biomass: 45.45 TWh (9.4%)
  •   Hydro: 18.27 TWh (3.8%)
Net generated electricity in 2020[2]

Solar power in Germany consists almost exclusively of photovoltaics (PV) and accounted for an estimated 8.2 percent of the country's gross-electricity generation in 2019.[3][4][5] About 1.5 million photovoltaic systems were installed around the country in 2014, ranging from small rooftop systems, to medium commercial and large utility-scale solar parks.[3]:5 Germany's largest solar farms are located in Meuro, Neuhardenberg, and Templin with capacities over 100 MW.

Germany has been among the world's top PV installer for several years, with total installed capacity amounting to 41.3 gigawatts (GW) by the end of 2016,[1] behind only China. However, new installations of PV systems have declined steadily since the record year of 2011.[6] It's estimated that by 2017 over 70% of the country's jobs in the solar industry have been lost in the solar sector in recent years.[1] Proponents from the PV industry blame the lack of governmental commitment, while others point out the financial burden associated with the fast-paced roll-out of photovoltaics, rendering the transition to renewable energies unsustainable in their view.[7]

Germany's official governmental goal is to continuously increase renewables' contribution to the country's overall electricity consumption. Long-term minimum targets are 35% by 2020, 50% by 2030 and 80% by 2050.[3]:6 The country is increasingly producing more electricity at specific times with high solar irradiation than it needs, driving down spot-market prices[8] and exporting its surplus of electricity to its neighboring countries, with a record exported surplus of 34 TWh in 2014.[9] A decline in spot-prices may however raise the electricity prices for retail customers, as the spread of the guaranteed feed-in tariff and spot-price increases as well.[3]:17 As the combined share of fluctuating wind and solar is approaching 17 percent on the national electricity mix, other issues are becoming more pressing and others more feasible. These include adapting the electrical grid, constructing new grid-storage capacity, dismantling and altering fossil and nuclear power plants – brown coal and nuclear power are the country's cheapest suppliers of electricity, according to today's calculations – and to construct a new generation of combined heat and power plants.[3]:7

Concentrated solar power (CSP), a solar power technology that does not use photovoltaics, has virtually no significance for Germany, as this technology demands much higher solar insolation. There is, however, a 1.5 MW experimental CSP-plant used for on-site engineering purposes rather than for commercial electricity generation, the Jülich Solar Tower owned by the German Aerospace Center.

History[]

Price of solar PV systems

History of PV roof-top prices in euro per kilowatt (€/kW).[10]

Germany was one of the first countries to deploy grid-scale PV power. In 2004, Germany was the first country, together with Japan, to reach 1 GW of cumulative installed PV capacity. Since 2004 solar power in Germany has been growing considerably due to the country's feed-in tariffs for renewable energy, which were introduced by the German Renewable Energy Sources Act, and declining PV costs.

Prices of PV systems decreased more than 50% in the 5 years since 2006.[11] By 2011, solar PV provided 18 TWh of Germany's electricity, or about 3% of the total.[7] That year the federal government set a target of 66 GW of installed solar PV capacity by 2030,[12] to be reached with an annual increase of 2.5–3.5 GW,[13] and a goal of 80% of electricity from renewable sources by 2050.[14]

More than 7 GW of PV capacity were installed annually during the record years of 2010, 2011 and 2012. For this period, the installed capacity of 22.5 GW represented almost 30% of the worldwide deployed photovoltaics.

Since 2013, the number of new installations declined significantly due to more restrictive governmental policies.

Governmental policies[]

Feed-in tariff for rooftop solar[15]

History of German feed-in tariffs in ¢/kWh for rooftop solar of less than 10 kWp since 2001. For 2016, it amounted to 12.31 ¢/kWh.[15]

As of 2012, the feed-in tariff (FiT) costs about €14 billion (US$18 billion) per year for wind and solar installations. The cost is spread across all rate-payers in a surcharge of 3.6 €ct (4.6 ¢) per kWh[16] (approximately 15% of the total domestic cost of electricity).[17] On the other hand, as expensive peak power plants are displaced, the price at the power exchange is reduced due to the so-called merit order effect.[18] Germany set a world record for solar power production with 25.8 GW produced at midday on 20 and 21 April 2015.[19]

According to the solar power industry, a feed-in tariff is the most effective means of developing solar power.[20] It is the same as a power purchase agreement, but is at a much higher rate. As the industry matures, it is reduced and becomes the same as a power purchase agreement. A feed-in tariff allows investors a guaranteed return on investment – a requirement for development. A primary difference between a tax credit and a feed-in tariff is that the cost is borne the year of installation with a tax credit, and is spread out over many years with a feed-in tariff. In both cases the incentive cost is distributed over all consumers. This means that the initial cost is very low for a feed-in tariff and very high for a tax credit. In both cases the learning curve reduces the cost of installation, but is not a large contribution to growth, as grid parity is still always reached.[21]

Since the end of the boom period, national PV market has since declined significantly, due to the amendments in the German Renewable Energy Sources Act (EEG) that reduced feed-in tariffs and set constraints on utility-scaled installations, limiting their size to no more than 10 kW.[22]

The previous version of the EEG only guaranteed financial assistance as long as the PV capacity had not yet reached 52 GW. This limit has now been removed. It also foresees to regulate annual PV growth within a range of 2.5 GW to 3.5 GW by adjusting the guaranteed fees accordingly. The legislative reforms stipulates a 40 to 45 percent share from renewable energy sources by 2025 and a 55 to 60 percent share by 2035.[23]

As of November 2016, tenants in North Rhine-Westphalia (NRW) will soon be able to benefit from the PV panels mounted on the buildings in which they live. The state government has introduced measures covering the self-consumption of power, allowing tenants to acquire the electricity generated onsite more cheaply than their regular utility contracts stipulate.[24][25]

Grid capacity and stability issues[]

German electricity generation on 25 and 26 May 2012

Approximately 9 GW of photovoltaic plants in Germany are being retrofitted to shut down[26] if the frequency increases to 50.2 Hz, indicating an excess of electricity on the grid. The frequency is unlikely to reach 50.2 Hz during normal operation, but can if Germany is exporting power to countries that suddenly experience a power failure. This leads to a surplus of generation in Germany, that is transferred to rotating load and generation, which causes system frequency to rise. This happened in 2003 and 2006.[27][28][29]

However, power failures could not have been caused by photovoltaics in 2006, as solar PV played a negligible role in the German energy mix at that time.[30] In December 2012, the president of Germany's "Bundesnetzagentur", the Federal Network Agency, stated that there is "no indication", that the switch to renewables is causing more power outages.[31] Amory Lovins from the Rocky Mountain Institute wrote about the German Energiewende in 2013, calling the discussion about grid stability a "disinformation campaign".[32]

Potential[]

Germany has about the same solar potential as Alaska, which has an average of 3.08 sun hours/day in Fairbanks.[citation needed]

Bremen Sun Hours/day (Avg = 2.92 hrs/day)

Stuttgart Sun Hours/day (Avg = 3.33 hrs/day)

Source: NREL, based on an average of 30 years of weather data.[33]

Statistics[]

Annual Solar Capacity Added
Comparison of renewable technologies and conventional power plants in Germany in EuroCent per kWh (2018)[34]
The share of solar PV in the country's electricity consumption plotted against an exponential growth curve from 1990 to 2015, doubling every 1.56 years, or growing 56% annually on average. The doubling time and growth rate differ from those of average power and installed capacity as the overall consumption also increased over time. After 2012 the trend slowed down significantly, with only 8.2% of the electricity coming from solar power in 2019.

The history of Germany's installed photovoltaic capacity, its average power output, produced electricity, and its share in the overall consumed electricity, showed a steady, exponential growth for more than two decades up to about 2012.[dubious ] Solar PV capacity doubled on average every 18 months in this period; an annual growth rate of more than 50 percent. Since about 2012 growth has slowed down significantly.

Generation[]

Year Capacity (MW) Annual generation (GWh) % of gross electricity consumption Capacity Factor (%)
1990 2 1 2e-04 5.7
1991 2 1 2e-04 5.7
1992 6 4 7e-04 7.6
1993 9 3 6e-04 3.8
1994 12 7 0.001 6.7
1995 18 7 0.001 4.4
1996 28 12 0.002 4.9
1997 42 18 0.003 4.9
1998 54 35 0.006 7.4
1999 70 30 0.005 4.9
2000 114 60 0.01 6.0
2001 176 76 0.013 4.9
2002 296 162 0.028 6.2
2003 435 313 0.052 8.2
2004 1105 557 0.091 5.8
2005 2056 1282 0.21 7.1
2006 2899 2220 0.36 8.7
2007 4170 3075 0.49 8.4
2008 6120 4420 0.72 8.2
2009 10566 6583 1.13 7.1
2010 18006 11729 1.9 7.4
2011 25916 19599 3.23 8.6
2012 34077 26380 4.35 8.8
2013 36710 31010 5.13 9.6
2014 37900 36056 6.08 10.9
2015 39224 38726 6.5 11.3
2016 40679 38098 6.4 10.7
2017 42339 39401 6.6 10.6
2018 45181 45784 7.7 11.6
2019 49016 47517 8.2 11.1
Source: Federal Ministry for Economic Affairs and Energy, for capacity figures[5]:7 and other figures[5]:16–41
Note: This table does not show net-consumption but gross electricity consumption, which includes self consumption of nuclear and coal-fire power plants. For 2014, net-consumption stands at approximately 6.9% (vs. 6.1% for gross-consumption).[3]:5
Nationwide PV capacity in megawatts on a linear scale since 1990.
Source: Federal Ministry for Economic Affairs and Energy[5]:7

Solar PV by type[]

Installed PV capacity in Germany by class size 2017[35]
<10 kW 14.2%
10–100 kW 38.2%
100–500 kW 14.1%
>500 kW 33.5%

Systems of less than 10 kW accounted for 14.2% of totalled installed capacity. These are single direct use systems, mostly residential solar pv systems. Systems rated 10–100 kW represented 38.2% of capacity and represents systems used collectively within one place such as a large residential block or large commercial premise or intensive agricultural units. The next class size of systems 100–500 kW represented 14.1% of capacity and would typically be larger commercial centres, hospitals, schools or industrial / agricultural premises or smaller ground mounted systems. The final category of systems rated over 500 kW accounted for 33.5% and mostly represent district power systems, ground mounted panels providing power to perhaps a mix of industrial and commercial sites. It is interesting to note that whilst large power plants receive a lot of attention in solar power articles, installations under 0.5 MW in size actually represent nearly two thirds of the installed capacity in Germany in 2017.

PV capacity by federal states[]

Watts per capita by state in 2013[36]
  10 – 50 Watts
  50 – 100 Watts
  100 – 200 Watts
  200 – 350 Watts
  350 – 500 Watts
  500 – 750 Watts
  >750 Watts

Germany is made up of sixteen, partly sovereign federal states or Länder. The southern states of Bavaria and Baden-Württemberg account for about half of the total, nationwide PV deployment and are also the wealthiest and most populous states after North Rhine-Westphalia. However, photovoltaic installations are widespread throughout the sixteen states and are not limited to the southern region of the country as demonstrated by a watts per capita distribution.

PV capacity in MW[37][38][39][40][41][42][43][44]
State 2008  2009  2010  2011  2012  2013  2014  2015 
Coat of arms of Baden-Württemberg (lesser).svg Baden-Württemberg 1,245 1,772 2,907 3,753 5,838.0 6,111.8 4,984.5 5,117.0
Bayern Wappen.svg Bavaria 2,359 3,955 6,365 7,961 9,700.5 10,424.7 11,099.8 11,309.2
Coat of arms of Berlin.svg Berlin 11 19 68 50 63.2 68.6 80.5 83.9
Brandenburg Wappen.svg Brandenburg 72 219 638 1,313 2,576.1 2,711.2 2,901.0 2,981.5
Bremen Wappen(Mittel).svg Bremen 4 5 14 30 32.3 35.3 39.9 42.2
DEU Hamburg COA.svg Hamburg 7 9 27 25 32.1 35.8 36.5 36.9
Coat of arms of Hesse.svg Hesse 350 549 868 1,174 1,520.9 1,661.8 1,768.5 1,811.2
Coat of arms of Lower Saxony.svg Lower Saxony 352 709 1,479 2,051 3,045.1 3,257.4 3,490.6 3,580.4
Coat of arms of Mecklenburg-Western Pomerania (great).svg Mecklenburg-Vorpommern 48 88 263 455 957.7 1,098.5 1,337.9 1,414.4
Coat of arms of North Rhine-Westfalia.svg North Rhine-Westphalia 617 1,046 1,925 2,601 3,582.0 3,878.5 4,234.9 4,363.7
Coat of arms of Rhineland-Palatinate.svg Rhineland-Palatinate 332 504 841 1,124 1,528.2 1,670.8 1,862.2 1,920.5
Wappen des Saarlands.svg Saarland 67 100 158 218 318.8 365.4 407.3 415.8
Coat of arms of Saxony.svg Saxony 168 288 529 836 1,280.8 1,412.3 1,575.1 1,607.5
Wappen Sachsen-Anhalt.svg Saxony-Anhalt 94 181 450 817 1,377.9 1,556.1 1,828.7 1,962.6
DEU Schleswig-Holstein COA.svg Schleswig-Holstein 159 310 695 992 1,351.5 1,407.8 1,468.6 1,498.3
Coat of arms of Thuringia.svg Thuringia 95 159 327 467 871.7 1,013.9 1,119.9 1,187.4
Cumulative total installed 5,979 9,913 17,554 23,866 34,076.7 36,710.1 38,236.0 39,332.4
Capacity added N/A 3,934 7,641 6,312 10,210.7 2,633.4 1,525.9 1,096.4

Photovoltaic power stations[]

Largest German photovoltaic power stations (20 MW or larger)[45]
PV Power station Capacity
in MW p
Notes
Solarpark Meuro 166 70 MW completed 2011, 166 MW in 2012[45]
Neuhardenberg Solar Park 145 Completed September 2012[45][46]
Templin Solar Park 128.5 Completed September 2012[45][47]
Brandenburg-Briest Solarpark 91 Commissioned in December 2011
Solarpark Finow Tower 84.7 Completed in 2010/2011
Eggebek Solar Park 83.6 Completed in 2011
Senftenberg Solarpark 82 Phase II and III completed 2011, another 70 MW phase planned[48]
Finsterwalde Solar Park 80.7 Phase I completed 2009, phase II and III 2010[49][50]
Lieberose Photovoltaic Park 71.8 Completed in 2009[51][52]
Solarpark Alt Daber 67.8 Completed in 2011[45]
Strasskirchen Solar Park 54 Commissioned in December 2009[45]
Walddrehna Solar Park 52.3 Completed June 2012
Waldpolenz Solar Park 52 550,000 CdTe modules. Completed December 2008[53][54]
Tutow Solar Park 52 Tutow I completed in 2009, II in 2010, III in 2011
Kothen Solar Park 45 Operational since 2009
43 Completed in 2014[55]
Jännersdorf Solar Park 40.5 Commissioned in 2012
Fürstenwalde Solar Park 39.6 Commissioned in 2011
Reckahn Solar Park 36 Completed in 2011
Perleberg Solar Park 35 Completed in 2012
Krughütte Solar Park 29.1 Completed in 2012
Solarpark Heideblick 27.5 Completed in 2011
Solarpark Eiche 26.5 Completed in 2011
Lauingen Energy Park 25.7 Completed in 2010
Pocking Solar Park 22 Completed in March 2006
Mengkofen Solar Park 21.7 Commissioned in December 2009
Rothenburg Solar Park 20 Commissioned in 2009
Other notable photovoltaic (PV) power plants[56]
Name & Description Capacity
in MW p
Location Annual yield
in MWh
Capacity factor Coordinates
Erlasee Solar Park, 1408 SOLON 12 Arnstein 14,000 0.13 50°0′10″N 9°55′15″E / 50.00278°N 9.92083°E / 50.00278; 9.92083 (Erlasee Solar Park)
Gottelborn Solar Park 8.4 Göttelborn n.a. n.a.
Bavaria Solarpark, 57,600 solar modules 6.3 Mühlhausen 6,750 0.12 49°09′29″N 11°25′59″E / 49.15806°N 11.43306°E / 49.15806; 11.43306 (Bavaria Solarpark)
Rote Jahne Solar Park, 92,880 thin-film modules,
First Solar, FS-260, FS-262 and FS-265[57][58]
6.0 Doberschütz 5,700 0.11
Bürstadt Solar Farm, 30,000 BP Solar modules 5.0 Bürstadt 4,200 0.10 49°39′N 8°28′E / 49.650°N 8.467°E / 49.650; 8.467
Espenhain, 33,500 Shell Solar modules 5.0 Espenhain 5,000 0.11 51°12′N 12°31′E / 51.200°N 12.517°E / 51.200; 12.517
Geiseltalsee Solarpark, 24,864 BP solar modules 4.0 Merseburg 3,400 0.10 51°22′N 12°0′E / 51.367°N 12.000°E / 51.367; 12.000 (Geiseltalsee Solarpark)
Hemau Solar Farm, 32,740 solar modules 4.0 Hemau 3,900 0.11 49°3′N 11°47′E / 49.050°N 11.783°E / 49.050; 11.783
Solara, Sharp and Kyocera solar modules 3.3 Dingolfing 3,050 0.11 48°38′N 12°30′E / 48.633°N 12.500°E / 48.633; 12.500
Solarpark Herten, 11.319 Modules from 3 Rheinfelden 3,000 0.11 47°32′39″N 7°43′30″E / 47.54417°N 7.72500°E / 47.54417; 7.72500
Bavaria Solarpark, Sharp solar modules 1.9 Günching n.a. n.a. 49°16′N 11°34′E / 49.267°N 11.567°E / 49.267; 11.567 (Bavaria Solarpark)
Bavaria Solarpark, Sharp solar modules 1.9 Minihof n.a. n.a.

Gallery[]

Companies[]

Some companies have collapsed since 2008, facing harsh competition from imported solar panels. Some were taken over like Bosch Solar Energy by SolarWorld. Major German solar companies include:

See also[]

References[]

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  2. ^ https://energy-charts.info/?l=en&c=DE
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  28. ^ "Timeline of the utility frequency: Timeline".
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  31. ^ "Germany's Network Agency says power outages "unlikely"". 6 December 2012. Archived from the original on 13 July 2014. Retrieved 13 July 2014.
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  47. ^ CFB News: Commerz Real Acquires Germany's Largest Solar Park. "CFB-Fonds".
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  49. ^ "Good Energies, NIBC Infrastructure Partners acquire Finsterwalde II and Finsterwalde III". pv-tech.org.
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External links[]

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