Over the years, photovoltaic technology has experienced significant advances driven by the global demand for energy and the need to reduce the environmental impact of conventional sources. In Cuba, the government has implemented a National Plan for the Development of Photovoltaic Energy to reduce reliance on fossil fuels and enhance energy security. To increase the installation of solar panels, laws for promote their use have been implemented, where is expected a significant increase in the capacities installed in secondary distribution networks. To mitigate negatives effects, three operation strategies have been established: On-load Tap Changers (OLTC) control method based on precise Distribution State Estimation (DSE) results to maintain voltage across the network within the desired range; active control of active and reactive power output from the photovoltaic panel and integration of stationary storage systems to balance solar panel fluctuations. The developed algorithm allows calculating the solar penetration limit taking into account the control strategy used, or a combination of strategies. The results show that the correct choice can ensure operation within limits, and maximize the energy generated by the solar panels.