On 19 June 2020, the International Energy Charter Industry Advisory Panel (IAP) welcomed SolarPower Europe as its newest member. 

SolarPower Europe represents over 200 upstream and downstream organisations from the entire solar value chain. The aim of the organisation is to shape the regulatory environment and enhance business opportunities for solar power in Europe and to ensure that solar energy is the leading contributor to the Europe's energy system. SolarPower Europe's mission is to shape the regulatory environment to promote the growing market opportunity for solar in Europe.

The Industry Advisory Panel is the expert consultative body to the Energy Charter Conference, providing policy advice from energy companies, international business associations and financial institutions on energy investment and the functioning of energy markets. The Panel includes members from all sectors of the energy industry and from a wide range of Member and Observer countries to the Energy Charter Treaty.