To encourage the generation of renewable energy, the Tokyo Metropolitan Government introduced a regulation mandating the installation of solar panels on the roofs of new detached buildings starting in April 2025.
[pdf] The Quilemba Solar plant is being developed by a joint venture comprising TotalEnergies (51%), Sonangol (30%), and Maurel & Prom (19%). The facility is expected to begin electricity production in April 2026 and aims to benefit approximately 40,000 households in the provincial capital.
[pdf] The results show that i) the current grid codes require high power - medium energy storage, being Li-Ion batteries the most suitable technology, ii) for complying future grid code requirements high power -low energy - fast response storage will be required, where super capacitors can be the preferred option, iii) other technologies such as Lead Acid and Nickel Cadmium batteries are adequate for supporting the black start services, iv) flow batteries and Lithium Ion technology can be used for market oriented services and v) the best location of the energy storage within the photovoltaic power plays an important role and depends on the service, but still little research has been performed in this field.
[pdf] 
