Please be aware that the internship requires you to support yourself financially (for travel, accommodation, food, transport, etc.). The SDG internship programme is a 3-month unpaid internship.
You can find information on grants on the SDG internship programme Project Website (scroll down to 'unser Angebot' (=our offer). The internship grant is a financial contribution towards travel and accommodation expenses and not payment for your work!
The internship grant is a one-time contribution of around €900, or €1,300 for students receiving financial assistance, provided to help support yourself during your internship. It is handled by HORIZONT3000.