Team SBRenewable energy is the fastest-growing source in the U.S. Many people are even more responsible towards mother nature. So, as the world goes green, you can participate in the movement if you use solar energy. One way to take part is to use a portable solar generator that provides mobile electricity.
Manufacturers offer various systems with different designs and features to meet your needs.
This article explains different elements that boost your knowledge and choice of portable solar generators.
Table of Contents
What is a portable solar generator?
Portable solar power generators produce energy provided by the sun instead of fuel. The generators usually combine portable solar panels, a charge controller, a battery, and an inverter. All the components are combined in a single device to capture, store and use solar energy. Also, unlike traditional generators, solar generators don't have movable parts.
The solar panels convert sunlight to electrical energy stored for later use. You can generate power even when the sun isn't out. So, portable solar generators are excellent for activities like camps, where you may not access fuel. Portable solar generators are also handy during power outages and backyard DIY projects.
You can choose a generator with several outlets to power different power-dependent devices. That way, you meet all your power needs on demand. For instance, you can plug in your smartphone, camera, and an extension at the same time.
Portable solar generator market
Critical insights for the portable solar generator market include drivers and challenges, regional analysis, and the impact of the pandemic.
Market drivers and challenges
Harsh weather is responsible for a 67% increase in power outages since 2000. Failures usually happen due to storms, floods, winds, and snow. The above disasters break down power grids or cause faults in power supply components. So, more and more individuals rely on portable solar generators with panels to get a continuous power supply. You can run some household essentials like lights and a refrigerator. A portable solar generator is also handy on a job site to operate tools or run appliances during camps.
Although solar generators are cost-effective in the long run, the relatively high initial cost is a market hindrance. Also, other alternatives, like inverter technology and battery power packs, are cheaper.
Regional analysis
Businesses in the U. S continue to embrace solar generators thanks to the cost reduction in solar. Companies, too, may be compelled to convert to solar due to strict CO2 emission laws. So, the market for portable solar generators will likely expand as climatic concerns rise.
Factors like automation and tech have fuelled the European solar generator market growth. Other top market fuels are the increase in industrialization and urbanization. Besides, the region has greatly emphasized the long-term decarbonization of E.U. energy systems.
The growth in population in the Asia-pacific region creates market growth opportunities. Also, the increase in per capita energy consumption is expected to boost the solar market. Finally, as urbanization takes root, many people are expected to move to solar energy use.
The impact of the pandemic
The pandemic promoted lockdowns and work stoppages in key countries. Most businesses were hurt, and the solar generator market is no exception. A decrease in energy demand happened during the lockdown. Fortunately, demand retrieval will likely quicken the restoration of the portable solar generator market.
What are the different parts of a solar generator?
Below are the components of a solar generator and the role of each in the device's overall function.
Solar panels
The solar panel has photovoltaic cells that convert sunlight into direct current. Most solar panels connect with the generator via a maximum power point tracking (MPPT) controller. You can find different sizes of solar panels on the market. However, most MPPT controllers won't allow you to connect panels that exceed voltage requirements.
Battery
A solar generator stores the energy from the sun for you to use later. The battery is the storage unit and usually contains various lithium-based chemical formulations. The most common chemicals are lithium iron phosphate (LFP) and nickel manganese cobalt (NMC).
LFP batteries have a higher C-rating than NMC batteries. You also get more charge cycles and less heat from LFP batteries. So, the choice is safer and more suitable for your solar generator.
Although more common, NMC batteries have slow charge and discharge rates. So, the choice may be less efficient for a portable solar generator. On the upside, NMC batteries are more energy-dense.
Battery management system (BMS)
A battery management system regulates how your battery charges and discharges. The unit monitors and balances the current and voltage of all cells in the battery. Also, battery management shuts down the system during over-temperature and overvoltage.
For lithium-ion batteries, a battery management system is a crucial safety requirement. Lithium ions have high power density, and an overcharge can result in thermal runaway and combustion. So, a battery management system is handy in reducing the likelihood of fire and explosions.
Inverter
The inverter converts the low direct current (DC) to alternating current (AC). You can then use the alternating current to power your household items. Appliances that use DC power don't need an inverter because electricity doesn't require conversion.
Inverters also handle the combined input wattage from AC and DC power. So, the inverter's capacity determines your maximum solar panel capacity.
How does a portable solar generator work?
A solar generator transforms solar into electrical energy via a chain of processes. First, when the sun hits your panel, the photons knock the electrons loose from the atoms. Next, the photovoltaic cells convert electrons into DC electricity. Next, the cells continue to collect and trap atoms. Then, when free electrons are ready to flow, they generate an electric current.
Electric current passes on through a charger controller, which regulates the voltage. As a result, your battery doesn't overwhelm or overheat. The protection also ensures the battery lasts longer.
The batteries store electricity in chemical energy until you connect an appliance. Upon plug-in, the charge passes through an inverter which transforms DC into AC electricity. Appliances like cell phones, laptops, and microwaves require DC power. For such devices, you can do without the inverter since the electricity doesn't need conversion.
The converter also steps up the voltage rating to the suitable voltage for your appliance. For instance, assume your generator has a standard 48V, and your appliance's rate is 120V. In such a case, the converter steps the 48V up to 120V. Afterward, the electrical current passes through the generator's extension cord to run your appliance.
Portable solar generators vs. Traditional gas generators
Below are the pros and cons of portable solar vs. traditional gas generators.
Solar generator pros
You enjoy the following benefits when you use solar energy.
Clean energy
Most solar materials are made of recyclable materials, e.g., glass, silicon and aluminum. Besides, solar generators don't use fossil fuels that threaten the environment.
Portability
Solar generators are smaller and lighter than gas generators. So you don't need much space to store or transport solar generators.
Ease of use
You don't need to refuel the generator; instead, you install the components, and you are good. Even without electrical experience, you can operate the devices safely.
Portable solar generator con
Although a good choice, solar generators have lower energy storage. Your solar generator may not operate all your household appliances at once. So, solar generators are unsuitable if you have high power demands.
Traditional gas generator pros
You experience the following benefits with traditional generators.
Cost
Traditional gas generators' initial price is less expensive. Nonetheless, the fuel costs pile up quickly down the line and increase the operation cost.
On-demand electricity
All you need to generate electricity is fuel and operational components. So, gas generators are ideal if instant power is your priority.
Traditional gas generator cons
The downsides of traditional generators are:
Air pollution
Gasoline and diesel fuel used in traditional gas generators pollute the air. For example, in one hour, a 1.8 kW gasoline generator can generate smog equivalent to a vehicle that has moved 150 miles.
Noise emission
Traditional gas generators produce a distinct sound during operations. So, you may have issues if you plan to use your generator in areas where silence is paramount.
Safety concerns
The flammable fumes of gas generators can cause fires upon contact with combustible materials. Gas generator accidents or misuse can also cause carbon monoxide poisoning.
The bottom line is; solar generators have the upper hand unless you have high power needs.
Portable solar generators vs. Larger solar generators
Portable solar power generators are small and lightweight, which makes movability simpler. You can form a larger generator from some stackable, scalable generators. You need to connect several battery storage modules to get more size and capacity.
You can use portable solar generators if you prefer an easily movable solution. For instance, if you are always on the go, you need a solution that takes up less space and is simple to carry. You can also use a solar-powered generator in a small home when the time of use prices rise.
Larger solar generators are big and have more weight than solar generators. So, you can't easily move around larger generators. Fortunately, the generators have more storage capacity and a higher power rate. So, if you have higher energy demands, a larger size is crucial to provide enough power.
Larger solar generators are more suited for industrial and commercial uses. For example, warehouses and government institutions can use large generators for backup. Besides, some large generators have wheels to enhance movability.
The size of the solar generator to use depends on your needs. Commercial applications need a large size, while residential applications can do with either. For instance, if you want a generator to power the whole home, you'll need a large one. Conversely, a small solar generator is ideal if you want a backup solution for a boat trip.
The uses of solar generators
Here are some ways to use solar generators.
To power outdoor equipment
Appliances like washing machines, pool pumps and filters, and clothes dryers make work simpler. Yet, you need a lot of power to run outdoor appliances, which translates to high utility bills. An alternative to save money spent on electricity is to use a free energy source.
Solar generators can power the appliances above and save you money. Nonetheless, large equipment consumes a lot of power, so you'll need a high initial investment. The good part is that you won't have to pay for electricity or high maintenance costs again.
To power indoor home appliances
Electric cookers, dishwashers, water heaters, and other indoor appliances are essential. Failure to use the devices due to power outages disrupts your home's smooth operations. So, a good recommendation is to get a solar generator to ensure you get the needed services.
A regular-sized power generator can power your home if you have moderate size appliances. However, opt for a larger size if you have a big family or many electrical devices. Otherwise, you won't be able to power all the machines simultaneously. Instead, you'll have to plug in a few appliances and only power a few devices.
To power tools
Drilling and other backyard tools are vital for home DIY projects and events. You can get a medium solar generator to power the smaller devices. Portable generators are also important when you must work with power but lack outdoor sockets.
You can also use solar generators for commercial tools like those used in construction. Commercial devices consume high power, so you'll need high storage capacity batteries and high capacity panels.
To offer a stable power supply for businesses
Electronic devices are a crucial part of communication, work, and business today. Also, with more remote work comes the need for a stable power supply. You also need continuous power to ensure you don't face business downtimes during outages. Also, a backup keeps your items fresh even during blackouts for the perishable food industry.
Ways to charge a solar generator
Here are three charge options for your solar-powered portable generator.
Charging with solar panels
The main point of solar power generators is to be able to recharge the unit via the sun. So, the most common way to charge a solar generator is through solar panels. The panels convert the energy from the sun into electricity. For an RV road trip or camping, the use of portable solar panels is recommended since they are very lightweight.
You will need a special adapter cable, which some manufacturers include in the generator kit. The charge speed depends on the solar input power of your generator, battery size, and the number of panels.
Grid electricity
You can use grid electricity if the sun isn't enough and you want to keep your batteries full for emergencies. To charge with electricity, plug the generator into a wall outlet like any regular appliance. It's recommended to remember to fix the charge time once you connect the generator to the local grid.
Further, the power grid uses AC and not DC power. So, you'll need to use a solar inverter charger when you recharge the batteries. Unfortunately, you defeat the purpose of solar panels if you still have to recharge with electricity.
Shopping for the best portable solar generator: What to consider
The best portable solar generator for you depends on your needs and preferences. The factors below guide you in choosing your ideal generator.
Storage capacity
Portable solar-powered generators have very diverse capacities. The capacity of portable solar generators is measured in watts (W) but translates to watt-hours when applied to power usage. One watt-hour means the generator can supply one watt continuously for 60 minutes.
Watt hours help you estimate how much power your generator will deliver before the need to recharge arises. A higher watt-hour means more extended periods of service or more power supply. The best portable solar generator offers enough power to meet all your energy needs.
Recharge time
You need to understand how long your exhausted generator takes to recharge. The time usually depends on the power input from the solar panels and charging speed. Your manufacturer's documentation usually indicates the estimated recharge time.
The expected recharge time is an approximation and varies based on available solar input. During cloudy days, your portable solar generator panel doesn't get enough direct sunlight. Factor the gray days, especially if you need power for several devices for several days. Ensure the capacity and charge rate will give you enough power for all your needs.
Efficiency
A portable solar generator kit's efficiency determines how much you get out of your device. Find a panel that generates the most power from the available sunlight.
One way to measure efficiency is to examine the panel's solar cell efficiency. The higher the rating, the more effective the solar panel and the more power you get under the identical radiation condition. For instance, a solar cell with an efficiency of 20% converts 20% of the sunlight that hits the panel into electrical energy.
Availability of ports
You may want to connect several devices simultaneously in the current charged-up world. Yet, not all portable solar-powered generators have more than one outlet. Shop around for a generator with more outlets if you have many appliances.
If unsure of your needs, opt for a generator with several outlets to be on the safe side. For example, you'll need at least two outlets to charge your phone and computer. Whereas you can connect an extension, you don't need to carry extra items in cases like boat trips.
Durability and additional features
Portable solar generators have various qualities, with different abilities to withstand stress. Durability is critical, especially if you plan to use your generator on camps and road trips. The best portable solar generator for camping is sturdy enough to endure road rigors. Even if you want a portable solar generator for your house, durability ensures long service periods.
Consider what additional features a solar generator offers that others don't. For instance, some portable solar generators have an integrated charge controller. However, others need you to buy the controller separately. Other unique features include a flashlight, surge protection, and BMS protection. While you don't mean to find all the special features in one product, look for a generator with desirable uniqueness.
Portable solar generators FAQs
Here are answers to common concerns about portable solar-powered generators.
Can I use my generator while it is being charged?
Yes, solar generators allow internal batteries to charge and discharge simultaneously. So, you can charge your electronics as your portable solar generator recharges. Nonetheless, the charging process will slow because energy runs out of the generator.
How many years can a portable solar generator last?
The expected lifespan of portable solar generators depends on quality and maintenance. Nonetheless, portable solar generators have few maintenance needs. For instance, protect the panel from rust and remove cobwebs in good time. Besides, the battery management system prolongs the device's lifespan and cost-effectiveness.
Can I replace solar generator batteries?
The battery is one of the most expensive components of your solar generator. Nonetheless, since solar generators are durable, even the batteries last a long time. Nevertheless, due to the high cost of batteries, you may not want to replace older batters. In short, you can replace the battery, but a whole unit replacement is more cost-effective.
Final word
Portable solar-powered generators are effective and good for the environment. You also save funds you would otherwise use to buy fuel continuously. So, solar is the way to go if you want a backup power solution for emergencies.
