Are rooftop solar photovoltaic systems a financial challenge?
Provided by the Springer Nature SharedIt content-sharing initiative The rapid growth of rooftop solar photovoltaic systems can pose a number of financial challenges for electric utility shareholders and their customers.
How does rooftop solar impact earnings?
Impacts are measured on the y axis in terms of percent changes relative to the no-PV case, on a 20 yr NPV basis. When the utility owns the rooftop solar, the aforementioned sources of earnings erosion are more than offset by the additional earnings gained on utility capital investments in rooftop solar (the yellow bar).
Why is rooftop solar a good investment?
Solar PV has low physical complexity and operational requirements, which facilitate strong strategic returns in terms of reputation and customer acceptance, as well as a financial payback of around 15 years. 1 So why rooftop solar?
Can utilities own a rooftop solar photovoltaic system?
The rapid growth of rooftop solar photovoltaic systems can pose a number of financial challenges for electric utility shareholders and their customers. One potential pathway to resolving these perceived challenges involves allowing utilities to own and operate rooftop solar systems.
Does a large-scale utility-owned residential rooftop solar programme increase shareholder earnings?
Here we model the financial performance of a large-scale utility-owned residential rooftop solar programme. Over a 20 yr period, the programme increases shareholder earnings by 2–5% relative to a no-solar scenario, compared to a 2% earnings loss when an equivalent amount of rooftop solar is instead owned by non-utility parties.
Does rooftop solar reduce sales growth?
Measures that reduce sales growth, such as rooftop solar connected behind the customer meter, amplify this effect. If the rooftop solar is instead connected directly to the utility system, as under the utility-ownership programme analysed in this study, this effect becomes moot.
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