Design of an off-grid photovoltaic power generation system for a household in Xinjiang region

This project presents the design of an off-grid photovoltaic power supply system for a user in the Xinjiang region. Based on local electricity consumption habits and the number of household appliances, the daily electricity consumption of the user is estimated at $9.824 \mathbf{k W h}$. The system utilizes five CS7N-670MS photovoltaic modules from Canadian Solar, connected in a 1 series $\times 5$ parallel configuration, with a module spacing of 3.172 m. The battery system employs AcmeG 12V 200 batteries from Narada, connected in a 4 series $\times 2$ parallel configuration. The selected inverter model is Sun2000-10kTL-M1 200vac. PVsyst software simulation indicates that with a system tilt angle of 60°, the power generation over the project's 25 -year lifespan is $109,434 \text{kWh}$. This translates to savings of $33,103.785 \text{kg}$ of standard coal equivalent, and reductions in emissions of 601.996 kg of sulfur dioxide, $96,750.599 \text{kg}$ of carbon dioxide, and 189.102 kg of nitrogen oxides. This project provides a theoretical reference for the design of household off-grid photovoltaic power generation systems.