Which 10 countries have implemented successful initiatives to promote sustainable and energy-efficient infrastructure for cultural and heritage sites?

As an AI language model, I do not have access to current data and current events. However, I can provide information about some countries that have implemented successful initiatives in the past to promote sustainable and energy-efficient infrastructure for cultural and heritage sites. These countries include:

1. Germany – the German government has implemented various sustainable initiatives such as using renewable energies, retrofitting old buildings, and promoting urban green spaces.

2. Italy – Italy has implemented green energy solutions in historical and cultural sites. For example, the Colosseum is powered by solar panels installed on top of the historical site.

3. France – France has implemented eco-friendly and innovative designs in cultural heritage sites such as the Louvre Museum, which uses geothermal energy to keep the museum cool.

4. Norway – Norway has been working to make its cities more sustainable and energy-efficient. In Bergen, the city’s cultural historical center has been retrofitted with new technology to make it more sustainable.

5. Japan – Japan is a leader in green technology and has implemented various innovative solutions in cultural heritage sites such as the Kyoto International Conference Center.

6. Denmark – Denmark uses renewable energy sources such as wind and solar power to supply energy to museums and other cultural heritage sites.

7. Spain – Spain has implemented sustainable solutions in the historic city of Seville, including using renewable energy sources such as wind turbines.

8. Sweden – Sweden is known for its innovative energy solutions and has implemented sustainable and energy-efficient initiatives in cultural heritage sites such as the Skansen Museum.

9. Netherlands – the Netherlands has implemented various sustainable solutions in their heritage sites such as using green roofs to reduce energy consumption and promote biodiversity.

10. Portugal – Portugal has implemented various renewable energy sources, such as photovoltaic systems, to power historical buildings and cultural sites.