The data shows that the number of rooftop PV projects in Germany in 2017 was 6,141, a year-on-year increase of 33.65%, mainly due to the smaller installed capacity of rooftop PV projects. The average installed capacity of rooftop PV projects in Germany in October 2017 was 17.82KW. At the same time of the year, 26.51KW became significantly smaller. In addition, from January to October 2017, the German rooftop PV project was relatively stable, and the overall maintenance was between 16-36KW. The details are shown in the following figure: Figure 2: Number of rooftop PV projects in Germany from October 2014 to October 2017 (unit: unit) 
Figure 3: Average installed capacity of rooftop PV projects in Germany from October 2014 to October 2017 (unit: KW) 
Before China became the world's first installed photovoltaic power country, Germany has always occupied the title of the world's largest PV application country. Among them, photovoltaic subsidies played a certain role in boosting, but the high subsidies of photovoltaic power plants made Germany's energy transformation burden heavy, so the EU in recent years The general direction of all countries is to reduce PV subsidies and make them more market-oriented. As a typical representative of the European Union, Germany's grid subsidies have also decreased significantly since 2009. Take the residential roof project with an installed capacity of 30kW as an example. The grid subsidy price has dropped from a historical high of 0.57 Euro/kWh in 2004 to a low of 0.12 Euro/kWh in 2014. In June 2016, through the reform of the Renewable Energy Law, Germany will no longer purchase green power at the government-designated price from 2017, but will issue subsidies through market bidding. The rest of the EU countries: Switzerland, Denmark, Italy and other countries have no plans to reduce or even plan to cancel PV FiT subsidies. The main PV policies of Germany in recent years are as follows: 
Chart 4: Germany's main PV policy2. Specifications:
|
Item |
Index |
|
Appearance |
Brown beige liquid |
|
Solid content |
30%±2 |
|
Viscosity |
≤30 |
|
pH |
3-5 |
|
Density |
1.02-1.1g/cm³ |
|
Ionic |
cationic |
|
Flash Point |
> 200℃Auto Ignition Temp |
4. Use Method:
The product is weak cationic, it can be used with cation and nonionic additive, such as cationic starch,basic dye and polyvinyl alcohol etc, but cannot be mix used with additive of strong cation.
The consumption of the product depends on the quality of base paper, internal sizing and size resistance. It is usually 0.5-2.5% of oven dry weight.
5. Package and storage:
200KG or 1000KG plastic drums.
The storage period is 6 months below the temperature 5-35℃,keep away from sunlight and frost.
Styrene Acrylic Copolymer,Cationic Styrene Acrylic Copolymer,Anionic Styrene Acrylic Copolymer,Sizing Agent For Corrugated Paper
Shandong Tiancheng Chemical Co., Ltd. , https://www.akdchemical.nl