Taiwan has set August 1, 2026, as the deadline to enforce its new building solar PV standards
Under the program, large new, expanded, and renovated buildings will be required to install minimum rooftop solar capacity
Authorities are continuing consultations with local governments and industry to support its implementation
Starting August 1, 2026, Taiwan will require certain new, expanded and renovated buildings to install solar PV systems under new building standards jointly introduced by the Ministry of the Interior (MOI) and the Ministry of Economic Affairs (MOEA).
The Standards for Installing Photovoltaic Power Generation Equipment in Buildings apply to buildings with a floor area of 1,000 m² or more. Under the rules, developers must install 1 kW of solar PV capacity for every 20 m² of floor area.
The government estimates the measure will add about 660 MW of new rooftop solar capacity each year.
Ahead of the implementation date, the MOI and MOEA held a briefing session in southern Taiwan with local governments, industry associations, solar companies, academic institutions, and other stakeholders. During the session, the administration explained the new requirements and gathered feedback on their practical implementation.
According to the Deputy Interior Minister Tung Chien-hung, the ministries are continuing to collect views from stakeholders and review the regulations and implementation process to ensure the new system is practical and can be introduced smoothly.
The Ministry of the Interior stated that installing solar PV systems on buildings is a key measure to promote net-zero transition and enhance energy resilience.
Formulated under the Renewable Energy Development Act, the regulations will also strengthen Taiwan’s energy resilience.
The ministry said it will continue to refine administrative procedures before and after the rules take effect, taking into account feedback from local governments and industry.
Rooftop solar systems receive attractive feed-in tariff (FIT) rates under the current structure. Earlier this year, in February 2026, MOEA said solar PV FIT rates for rooftop solar systems will remain unchanged from the previous year, with system sizes ranging from 1 kW to <10 kW eligible for TWD 5.629/kWh (see Taiwan Keeps 2026 Solar PV Feed-In Tariff Rates Unchanged).
