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Reshaping the value space of stock of PV systems, old power stations get a new lease of life

Jun 18, 2024 0

In recent years, the global installed capacity of photovoltaic continues to grow, showing a strong momentum of development. At the same time as the competition for new installed capacity becomes increasingly fierce, a large number of stock of power stations are not fully utilized, and the actual operating efficiency of power generation needs to be further improved.

If you are a homeowner, how can you retrofit or expand your PV system to meet your needs?

Over time, the energy needs of households have expanded. Whether it's the need for more power to charge a new electric vehicle, or because of increased household consumption (more electrified devices). Your existing PV system is no longer sufficient to meet your needs, and there are a number of issues that will need to be addressed in order to retrofit or expand your PV system.

  • Where modules have not been installed in the past due to shading and roof orientation issues, optimizers have been added to enable the installation of modules to further increase system capacity.
  • The addition or replacement of components will face the problem of component mismatch caused by the mixing of old and new components, and the addition of an optimizer can help your system maximize the performance of each component.
  • Even if you don't need to add new components to your system, you can try the Optimizer to solve the problem of reduced power generation as your system ages, and the Optimizer's fast shutdown and component-level monitoring features add new locks of security to older systems.

In addition, from the perspective of the full life cycle of a PV system, the use of an optimizer usually does not bring you additional costs and expenses. Depending on local tariffs and environmental conditions, the payback period of an optimizer is usually 6~8 years, and the optimizer's lifespan can be up to 25 years!

* Specific data may vary depending on the actual project, we can also provide free estimates based on the project you provide.

If you are an industrial or commercial user, how to enhance the value of PV assets and explore the second growth point of the stock of power plant?

On the one hand, the stock of power station running time is long, the existence of security risks rise, the battery internal defects such as cell aging, hidden cracks, etc. and external environmental factors such as shadow shading, dust, etc. will cause the battery local temperature is too high to form hot spots. The hot spot effect not only leads to a reduction in module output power, but also causes permanent damage to the battery, which is an important factor affecting the output power and service life of PV modules, and may even lead to fire hazards. As an industrial and commercial project, the project volume is large and close to the production, once the safety accident will cause huge economic losses. The fast shutdown and component-level monitoring capabilities of the PV optimizer can provide all-around protection for the power station. Within 15s, the voltage of each module can be reduced to a safe voltage to maximize the rescue efficiency and reduce losses, while the component-level monitoring can monitor the operating conditions of each module to detect problems in advance and nip the risk in the bud.

On the other hand, the complex external environment in the actual project is superimposed on the long time operation, and the power generation loss caused by component mismatch is inevitable. The component-level MPPT function of the optimizer can well solve this problem, and can comprehensively improve the system power generation by 5~30%; meanwhile, the 25-year long life of the optimizer can maximally guarantee the long-lasting income of the PV power station, shorten the return period of investment, and also make the value of the stocked power station in the trading market to be enhanced.

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