The space capsule guesthouse's energy supply system utilizes diversified energy sources, efficient energy storage technology, intelligent management systems, and energy-saving equipment to create a highly efficient and stable self-sufficient energy system. This system meets the needs of off-grid scenarios while adhering to green and sustainable development principles.
Solar energy is the core energy source for the space capsule guesthouse. Its roof is typically covered with large-area high-efficiency photovoltaic panels, using monocrystalline or polycrystalline silicon materials, which convert solar energy into direct current through the photoelectric effect. The photovoltaic panels are connected to the energy storage system via intelligent controllers. During the day, they prioritize powering the equipment inside the capsule, with excess energy stored in lithium battery packs. At night or on cloudy days, the lithium batteries provide reverse power, ensuring a continuous and stable power supply. Some designs also incorporate tracking photovoltaic brackets that automatically adjust their angle based on the sun's position, improving power generation efficiency compared to fixed systems.
In areas with abundant wind resources, the space capsule guesthouse is equipped with small wind turbines as supplementary energy. Vertical or horizontal axis wind turbines complement the photovoltaic system: during the day when there is ample sunlight, solar energy is the primary source, while wind power generation is relied upon at night or on cloudy days. Wind turbines feature automatic speed limiting and yaw protection. When wind speed exceeds the rated value, the blade angle automatically adjusts to reduce rotational speed and prevent equipment damage. This wind-solar hybrid mode significantly improves the stability of energy supply, effectively compensating for the shortcomings of a single energy source, especially during extreme weather or seasonal sunlight shortages.
Energy storage systems are a crucial component in ensuring energy stability. The mainstream solution uses lithium iron phosphate batteries, which, due to their high energy density, long cycle life, and good safety, can meet the power needs of lighting, air conditioning, refrigerators, and other equipment for several days. Some high-end projects are incorporating the reuse of retired electric vehicle batteries, reducing costs and achieving resource recycling. Intelligent battery management systems monitor battery status in real time, preventing overcharging and over-discharging of individual cells through equalization control, thus extending the overall lifespan. Furthermore, mechanical energy storage and phase change energy storage technologies are being explored to further enrich energy storage solutions.
The intelligent energy management system is the "brain" of the entire energy supply system. The system monitors solar and wind power generation and equipment power load in real time through sensors, automatically allocating energy according to preset strategies: prioritizing renewable energy supply and storing surplus power in batteries; when energy is insufficient, it activates backup power or adjusts equipment operating power. For example, during peak nighttime electricity consumption, the system coordinates lithium batteries and small diesel generators to ensure stable output. Simultaneously, the system generates energy consumption reports to help users optimize their electricity usage habits and reduce operating costs.
The application of energy-saving equipment further improves energy efficiency. The cabin uses LED lighting, which has several times the luminous efficiency of traditional lamps and a longer lifespan; the air conditioning system uses inverter technology, automatically adjusting power according to indoor temperature, resulting in significant energy savings; smart sockets and temperature control systems automatically adjust power based on usage scenarios, such as turning off unnecessary appliances when no one is present and automatically putting the air conditioner into sleep mode once the desired indoor temperature is reached. These measures reduce overall energy consumption compared to traditional equipment.
To cope with extreme situations, the space capsule accommodation also features a multi-tiered energy security plan. Off-grid projects are equipped with small diesel or natural gas generators as backup power, with enough power to meet the needs of basic equipment. Projects located near the grid adopt a "grid-connected + energy storage" model, selling excess electricity to the grid during the day and purchasing electricity from the grid at night or when there is an energy shortage, achieving flexible switching. In addition, some projects are exploring the use of geothermal and bioenergy, such as using underground pipe heat exchangers to provide heating in winter and cooling in summer, or using kitchen waste to ferment and generate biogas for power generation, further enriching the energy structure.
