Hallanvahti is a startup based in Finland.
Based in Finland, Hallanvahti is a startup.
Hallanvahti is a solar PV project in Finland listed as an investment by Taaleri Energia in 2025 under the SolarWind III fund. It is a utility-scale solar photovoltaic asset (project-level investment).
Funding rounds, investor list, risk signals, and comparable startups, all gated to subscribers.