Generally, when some thing worthwhile is included into a residence, it's assessed and improves the assets value. However, using an active solar energy system, the value from the system is not regarded for evaluation functions. California’s 2020 Solar Mandate calls for all recently constructed homes to install solar photovoltaic systems. https://solarvacavilleca.blogspot.com/2024/08/4-qualities-of-leading-solar-panel.html