Taiwan Mandates Solar Panels on New Large Buildings from Aug 2026

Effective 1 August 2026, Taiwan will require photovoltaic panels on any new, expanded or renovated building with a floor area of at least 1,000 m². The regulation, part of an amendment to the Renewable Energy Development Act, sets a quota of 1 kW of solar capacity for every 20 m² of constructed space, targeting an additional 660 MW of solar generation each year – enough to power roughly 200,000 households.

The law obliges developers to integrate solar modules into the architectural design rather than adding them later, and it involves coordination between the Ministry of the Interior, the Ministry of Economic Affairs, the state utility Taiwan Power Company and industry installers. Officials say the measure will boost green‑energy supply, improve building energy resilience and steer the construction sector toward integrated building‑integrated photovoltaics (BIPV), reshaping cost structures, maintenance responsibilities and the overall value of real‑estate assets.