There are several ways to generate electricity in a campervan, each with advantages and disadvantages.
The energy conversion rate of solar panels is relatively low, and the power generated per square meter does not exceed 200W. It occupies a large area and generates low power. The generator is powerful enough to power most devices. However, the generator makes noise when running and requires additional fuel, which is inconvenient to use. In some areas, it is difficult to obtain bulk gasoline. Carrying cans of gasoline is also inconvenient.
Most motorhomes currently use electricity from dedicated battery packs.
There are lead acid batteries and lithium batteries. Battery + high-power inverter can provide power to the camper. Battery capacity and puThe power of the inverter determines the power of the motorhome's electrical appliances. High-power devices must be equipped with large-capacity batteries and high-power inverters. Some RVs also use 48V batteries, which can store more energy and produce more power. They can turn on the air conditioner when parked.
Most motorhomes still use lead acid batteries.
Although the energy density is low, it has a high stability and safety factor. Regardless of the capacity or type of battery used, the issue of battery charging must be considered.
Although solar cells can produce electricity, solar energy production depends solely on the weather.
In addition to being affected by weather conditions, the conversion efficiency of solar panels is low. If youIf you want to produce enough power, you need to have a large enough roof area to facilitate the installation of more panels. As with the two battery panels in the picture above, the effective power is only around 200W when there is sufficient light. Such small power cannot directly power high-power devices. This can only prevent the battery from discharging excessively and the charging speed is also very slow. If a 12V 200Ah battery is used and the solar panel power is 200W, it will take 12 hours to fully charge the battery, and charge losses must also be taken into account. And solar panels only have high power for a few hours a day. The output power will drop significantly at other times, so it is only suitable for recharging the battery. Use it when you are not in a hurry to avoid a decexcessive battery load.
The generator has a large output power and can also charge the battery while powering electrical appliances.
Use a generator to generate electricity, just like you use mains electricity at home. For example, when using high-power electrical appliances, the generator can be directly removed. Using an induction cooker to cook vegetables, a rice cooker, etc., or even eating hot pot, can all be powered by a generator. Simply turn off the generator after use. Normally, low power electrical appliances can be powered by battery + inverter. Generators are not suitable for all motorhomes. Smaller campers use a lot of space and it is difficult to find a suitable space for the generator.
Solar batteries can only be used for oneauxiliary load, and the power is low and insufficient to do big things. An RV cannot do without its auxiliary battery. If you bring a fuel generator at this time, it will be a burden.
Therefore, the most ideal solution is to use the auxiliary battery + inverter to provide power, and the power output is achieved by modifying the original generator of the vehicle. For example, replace the original car generator with a high-power generator specific to the camper. This type of generator is powerful enough, with an output current of over 200A, and can produce over 40A even at idle. Charging is faster. When the engine is idling, the generator output power is: 40A×14V=560wh. In this case, there is no need to carry an additional generator. In the extreme case of a discharged battery, the vehicle may startidle to produce electricity. Combined with the battery + inverter, it can fully meet the electrical needs of the motorhome.
If you want to install solar panels on the tower, which brand should you choose?
Simplify the calculation:
If you have Conventional monocrystalline panels 300 W, which can be arranged in 4 or 5 pieces.
Depending on the smaller number, four 300 W cards are calculated, or 1.2 kW.
Suppose
1. Average daily equivalent hours are 3.5 hrs
2 System efficiency is 80%
So average. Daily electricity production is
1.2 kW*3.5 h*80%=3.36 kWh
That's a little over 3 degrees.
There will be more sunny days and fewer cloudy days.
If it is installed with flexible battery panels, it will look better, but the energy production will be less.
If you want to install floor panelsaires on the bed machine, choose Wuxi brand Guoyuan Photovoltaic Technology Co., Ltd. According to relevant inquiries, Wuxi Guoyuan Photovoltaic Technology Co., Ltd. provides a variety of monocrystalline and polycrystalline solar panel photovoltaic power generation systems for home towers and scooters, with a variety of power brands for you to choose from. Wuxi Guoyuan Photovoltaic Technology Co., Ltd. was established in 2020 and is located in Wuxi City, Jiangsu Province. It is a company mainly engaged in technology promotion and application services.