The Sustainable Urban Net Zero Network for Ukraine (SUN4Ukraine) is a four-year EU Horizon Europe project. A new call for proposals is inviting cities to align Ukraine’s recovery plans with ambitious climate neutrality goals, advancing the climate transition.
Eligibility: all cities participating in the EU mission for 100 climate-neutral and smart cities
Application deadline: 4 July 2025
Programme duration: October 2025 to April 2027
Registration: cities can register at https://ec.europa.eu/eusurvey/runner/SUN4Ukraine_CallToMissionCities.

About the programme
Mission Cities will be paired with one of the 12 SUN4Ukraine Flagship Municipalities to jointly explore solutions for climate neutrality. The initiative fosters peer-to-peer learning, cross-border cooperation, and shared innovation in the pursuit of climate-neutral urban development.
The Flagship Municipalities are Chernihiv, Chernivtsi, Dnipro, Kalush, Kharkiv, Konotop, Kyiv, Mykolaiv, Novovolynsk, Pervomaisk, Vinnytsia, and Zviahel.
Programme activities
- An in-person launch event
- Online thematic sessions
- Study visits by Ukrainian cities to EU counterparts
- A final review session bringing together Mission Cities and Flagship Municipalities to reflect on lessons learned and achievements.
Mission Cities are expected to dedicate an average of 4 hours per month by at least one staff member. Travel costs for the in-person launch event will be reimbursed.