In Germany, the Senate of Hamburg passed a law which provides for compulsory installation of solar panels on all new buildings in 2023.
Similar laws have already been adopted in a number of cities and regions around the world. For example, in the US, a law was passed in 2018 in California.
The government of Hamburg is also planning to introduce a mandatory share of renewable energy sources in heating systems, with 2022 the installation of boilers running on oil will be banned. From 2026, this rule will apply to the upgrading of old heating systems in existing buildings.
The law also calls for the construction of government buildings to meet high energy efficiency standards. The Senate of Hamburg anticipates that the costs of implementing the climate plan up to 2030 would amount to about 2 billion euros.
According to the law, the level of harmful emissions in 2030 must be reduced by 55% from the 1990 level. By 2050, emissions will be reduced by 95%, after which the city should become climate neutral.
To achieve this goal will need to reduce CO2 emissions in the household sector, transport, commercial and industrial sectors. The government also plans to implement energy standards for buildings, to upgrade public transport and promote projects for climate protection.
The leadership of Hamburg has planned a number of concrete measures for the coming years such as the introduction of energy standards for buildings, modernization of public transport, development of Cycling transport promotion of projects for climate protection, etc.