History of photovoltaic growth

The history of photovoltaic growth includes previous forecast and annual deployment figures by country.
Deployment reports.
Most PV deployment figures in this article are provided by the European Photovoltaic Industry Association in the "Global Outlook for Photovoltaics" report, the "Observatoire des énergies renouvelables" or EurObserv'ER's "Photovoltaic Barometer" report, and the IEA-PVPS (photovoltaic power systems) "Snapshot" and "Trends" report.
Deployment by country.
In 2013, worldwide deployment of solar PV amounted to almost 40 GW (39,953 MW)—an increase of about 35 percent over the previous year. Cumulated capacity increased by 38 percent to more than 139 GW. This is sufficient to generate at least 160 terawatt-hours (TWh) or 0.85 percent of the world's total electricity consumption of 18,400 TWh.
An uncertainty in Chinese deployment was the reason for a significant discrepancy between EPIA's "outlook" and IEA's "Trends" reports. EPIA did not take 1.1 GW of additional Chinese deployment into account, since at the time it was unsure whether these installations were connected to the grid. In IEA's final "Trends" report, the confirmed figures not only raised domestic Chinese deployment from 11.8 GW to 12.92 GW, but also contributed to increase global figures to almost 40 GW.
In 2013, Asia has been the fastest growing region, with China and Japan accounting for 49% of worldwide deployment. About a quarter has been installed in Europe (10,975 MW). The remaining quarter of the 38,400 MW deployed in 2013 is split between North America and other countries.
Europe is still the most developed region with a cumulative capacity of 81.5 GW, about 59 percent of the global total, followed by the Asia-Pacific region (APAC), including countries such as Japan, India and Australia with 22 GW or about 16 percent of worldwide cumulative capacity (due to its significance, China is excluded from the APAC region in all PV statistics and listed separately). European solar PV now covers 3 percent of the electricity demand and 6 percent of the peak electricity demand. However, deployment in Europe has slowed down by half compared to the record year of 2011, and will most likely continue to decrease. This is mainly due to the strong decline of new installations in Germany and Italy.
Cumulative capacity in the MEA (Middle East and Africa) region and ROW (rest of the world) accounted for less than 3 GW or about 2.2% of the global total. A great untapped potential remains for many of these countries, especially in the Sunbelt.
In 2013, the world's top installer were China (+12.92 GW), followed by Japan (+6.97 GW) and the United States (+4.75 GW), while Germany remained the world's largest overall producer of power from solar PV, with a total capacity around 36 GW and contributing 5.7% to its net electricity consumption. Italy met more than 7% of its electricity demands with solar PV, thus leading the world in that respect.
The top ten leading countries in terms of deployed and overall PV-capacity are shown above. Other mentionable PV deployments above the 100-megawatt mark included France (643 MW), Canada (445 MW), South Korea (445 MW), Thailand (437 MW), The Netherlands (360 MW), Switzerland (319 MW), Ukraine (290 MW), Austria (263 MW), Israel (244 MW), Belgium (237 MW), Taiwan (170 MW) Denmark (156 MW) and Spain (116 MW).
In 2013, Europe added 11 gigawatts of new PV installation (including non-EU countries). It is still the most developed region with a cumulated total of 81.5 GW, about 59 percent of the worldwide installed capacity. Solar PV now covers 3 percent of the electricity demand and 6 percent of the peak electricity demand. However, European PV deployment has slowed down by half compared to the record year of 2011, and will most likely continue to decrease. This is mainly due to the strong decline of new installations in Germany and Italy.
Off grid refers to photovoltaics which are not grid connected. On grid means connected to the local electricity grid. Δ means the amount installed during the previous year. Σ means the total amount installed. Wp/capita refers to the ratio of total installed capacity divided by total population, or total installed Wp per person. Module price is average installed price, in Euros. kW·h/kWp·yr indicates the range of insolation to be expected. While National Report(s) may be cited as source(s) within an International Report, any contradictions in data are resolved by using only the most recent report's data. Exchange rates represent the 2006 annual average of daily rates (OECD Main Economic Indicators June 2007).<br>Module Price: Lowest:2.5 EUR/Wp (2.83 USD/Wp) in Germany 2003. Uncited insolation data is from maps dating 1991–1995.
Notes: While National Report(s) may be cited as source(s) within an International Report, any contradictions in data are resolved by using only the most recent report's data. Exchange rates represent the 2006 annual average of daily rates (OECD Main Economic Indicators June 2007)<br>Module Price: Lowest:2.5 EUR/Wp (2.83 USD/Wp) in Germany 2003. Uncited insolation data is lifted from maps dating 1991–1995.
Original source gives these individual numbers and totals them to 37,500 kW. The 2004 reported total was 30,700 kW. With new installations of 6,800 kW, this would give the reported 37,500 kW.