Individual memberships

What is the International Solar Energy Society, ISES?

ISES, a non-profit UN-accredited membership NGO founded in 1954, has a long history of being the trusted global advisor on renewable energy and this remains its core value.
ISES works to achieve 100% renewable energy for all, used efficiently and wisely.

Who can become an ISES Member?
Anyone can become a member!

  • Individuals
  • Organizations

What are the benefits of becoming an ISES Member?

With your ISES membership...
You join a global organization whose members are advancing scientific breakthroughs and strategies needed for a rapid transition to a 100% renewable energy future.
You will have access to regular news reports and other publications on progress in renewable energy developments worldwide.

You will be eligible for a discounted subscription to the world-renowned peer-reviewed Solar Energy Journal, the leading scientific journal on solar energy.
You will have many opportunities to engage with businesses, professionals, and decision makers through international congresses, regional conferences, ongoing policy and educational programs, and other networking events.
View detailed benefits and services on the membership page at

How much does an ISES membership cost?

Membership category

Annual rate

Annual rate*


22 Euro

11 Euro


45 Euro

23 Euro

Professional silver

200 Euro

100 Euro

Professional gold

1,000 Euro

500 Euro


600 Euro

Company silver

2,700 Euro

Small company

250 Euro

Small company silver

1,125 Euro


300 Euro

Institution silver

1,350 Euro


Annual rate * = annual rate for people residing in lower-income countries.

How can I become an ISES Member?

To purchase an individual membership:

If you are subscribed to our mailing list, you already have an account in our membership system. If you are not subscribed, enter your e-mail address and name in the subscription form in the footer of this website.

Please update your contact details and preferences by clicking on Edit in the menu. This is important to determine the correct membership category. If you are interested in becoming a corporate ISES member, contact us at and we will guide you through the application process.

Members Area

Once your account is set up, you will have access to the Members Area of the ISES website.

Corporate Members

If you are interested in becoming an ISES Corporate Member, contact us at and we will guide you through the application process.

Further questions?
Please feel free to get in touch with our membership team at the ISES headquarters in Freiburg, Germany. Contact us via email; or phone: +49 761 45906 50. We are happy to provide you with further information and answer your questions.

Already an ISES Member? We may have two differing email addresses in our system for you. Please contact us to resolve this issue.