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Most portable solar panels designed for consumer use come with USB outputs, allowing them to plug directly into standard power banks just like a wall charger or computer port. However, unlike a consistent 5V/2. 4A wall adapter, solar output varies dramatically based on. One of the most common questions among hikers, campers, digital nomads, and emergency preppers is: can you charge a power bank with a solar panel? The short answer is yes—but it's not always straightforward. This guide explains how solar charging works, what limits efficiency, and how to set up a reliable routine for. Solar panels convert sunlight into electricity through photovoltaic cells. It's basic physics: Sunlight hits the panel. Electrons get knocked loose and create an electrical current. That current flows out through a USB or DC port. Gather Required Accessories, 3. Connect the Solar Panel to the Power Bank, 4. In this guide, we'll cover how to effectively use solar panels to power a power bank and introduce the GP14-a power bank designed with solar charging in mind.
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Several factors can affect how productive these devices will be when placed in a window. These factors include orientation, reflection and refraction effects, the effects of shading, and temperature. During the nighttime, we light our homes with light bulbs. Is this ambient lighting a suitable source to create electricity in a solar device? Yes –. So, what light bulbs can produce the best wavelength and intensity of light that can be used to power a solar panel? Here are a few options for you to consider. The leisure and camping industry has encouraged the development of devices that incorporate solar panels. This simple design also means that. There are several smallerdevices whose power requirements allow them to function from the power produced by an indoor solar panel: 1. Charging cell phones 2. Charging portable radios 3. Security cameras 4. Wi-Fi 5. Solar.
[PDF Version]Solar panels are made for outdoor use, but they can work if set up near a window. They can also work under indoor lights, but that's not efficient at all – or useful. However, some sources of indoor lighting have a similar spectrum to that of the sun, making it possible to power solar panels inside.
Again, the answer is yes – but here's a quick recap of why and how. Solar panels and chargers work best indoors when placed in a window in full view of the sun. However, they may also produce electricity when exposed to the light that is emitted by interior lights.
First of all, indoor solar panels will need to be placed in a well-lit area in order to get enough sunlight. A south-facing window is ideal, but any bright spot will do. Secondly, you might need to use a reflector or light tube in order to maximize the amount of sunlight that hits the panel.
Most PV is optimized to collect direct sunlight and may not work indoors. Minor material defects and spectral differences can prevent a traditional panel from performing. The chart below shows the indoor performance of Amorphous Silicon (a-Si), Crystalline Silicon (c-Si), and Gallium Arsenide (GaAs).
The light does not necessarily need to be direct sunlight. It is possible to use solar panels and chargers indoors in two different ways. They can be used by placing them in the light that is entering through the windows. They can also work by exposing them to the light from certain types of light bulbs.
Indoor solar panel windows work by absorbing sunlight and converting it into electricity. The electricity is then used to power your home or office. You can get these windows in a variety of sizes and styles to match your décor, and they can be installed on any window in your home or office.
Power Tools for Solar InstallationDrill A reliable drill is essential for creating holes in the roof, attaching mounting hardware, and securing solar panels. Look for a drill with variable speed settings and a comfortable grip to ensure ease of use. Reciprocating Saw A reciprocating saw is useful for cutting through various materials during installation.
To begin your solar installation journey, you'll need essential hand tools that enable precise and secure handling of components. Here are some key hand tools required for solar panel installation: A reliable screwdriver set of various sizes and types is essential for handling screws, bolts, and fasteners during installation.
Popular Solar Installation Tools & Their Primary Functions Ever wondered about those less-talked-about tools? Here's a quick snapshot: Insulation Resistance Tester: Tests the resistance of the solar system, ensuring safety and efficiency. Have you ever tried painting without a brush or baking without an oven? The results wouldn't be ideal.
The cornerstone of any proficient solar panel installer's arsenal is a thorough professional tool kit tailored to meet the rigorous demands of modern solar system setups. A pivotal component in such a kit is the 23-piece 3/8 Pass-Thru SAE/Metric Socket Set, designed for heightened efficiency and adaptability across diverse installation scenarios.
Helmets, another vital piece of safety equipment, guard against head injuries from falls or unexpected debris during installation. The dynamic environment of solar panel installation calls for robust protective gear to shield installers from common occupational hazards.
Reliable tools are less likely to malfunction or break down, minimizing disruptions to your workflow and ensuring smooth project execution. Ensure that the tools you select are compatible with the specific requirements of solar panel installation work.
To sum up, the efficacy of solar panel installation hinges on the utilization of appropriate tools and equipment. From battery-operated drills and digital multimeters to specialized wiring tools and safety gear, each component plays a pivotal role in ensuring efficient and safe installations.
That said, regardless of hemisphere, you can calculate your ideal year-round solar panel angle by simply subtracting 2. 5° from your location's latitude.
The latitude is the angular distance of a location from the equator and is measured in degrees north or south of the equator. The solar panel angle calculator uses the latitude of the installation location to determine the optimal tilt angle for the solar panel based on the season and desired energy output.
Simply enter your address and it will provide the optimal angles for each season, as well as a year-round average angle for your specific location. An example of the calculator results. Discover the best angle for your solar panels with our Solar Panel Tilt Angle Calculator. Maximize energy efficiency and save money!
In general, the tilt angle of a solar panel is set to maximize its energy output by capturing the maximum amount of sunlight over the course of a year. This angle is determined by the latitude of the installation location, the season, and the desired energy output.
Many solar angle calculators are available online for free. 4. Adjust the tilt angle of the solar panel. Once you have determined the optimal angle, you can adjust the tilt angle of the solar panel by using a mounting bracket that allows for angle adjustments.
If connected to a stand-alone power system, the installation angle of solar panels should be based on the light conditions to obtain the maximum power output. Generally, if the output of the solar panels can be met even on the lowest light intensity of the year, then the solar output the chosen angle will meet the year-round demand.
A solar panel orientation calculator is a tool that helps determine how to calculate solar panel tilt angle or direction, to face a solar panel to maximize energy output. This is an important consideration when installing solar panels, as the direction they face affects the amount of sunlight they receive throughout the day and year.
In the dynamic world of renewable energy, importing solar panels from China has become an increasingly popular option for businesses and individuals alike. This decision is driven by China's unparalleled expertise in. When considering the procurement of solar panels on a global scale, China emerges as a leading contender due to s. When embarking on the journey of importing solar panels from China, it's imperative to carefully consider several key factors that can significantly impact the success of your procurement process. Understanding th. Embarking on the journey to import solar panels from China involves navigating a series of intricate steps, each crucial to ensuring a successful and efficient transaction. Step 1: Understanding Local Import Regulatio.
Embarking on the importation of solar panels from China is a journey that intertwines various intricate steps, encompassing the understanding of local import laws, in-depth market analysis, stringent supplier assessments, and effective handling of logistics and customs. This comprehensive process demands a strategic and meticulous approach.
Imported solar panels require customs clearance in China and the destination country. Familiarize yourself with your country's customs regulations and tariffs to avoid any unexpected delays or fees. Prepare all necessary documents including invoices, packing lists and certificates of origin.
As one can see, the duty rates on solar panels imported from China to the EU are very low, and in this case, they're zero. Although in the Chinese offer, one can find most of the photovoltaic modules, it should be remembered that they are manufactured for distribution worldwide. Therefore, they do not always comply with European requirements.
The tariffs vary between different manufacturers, ranging from 18.56% to 35.21%. The EU initiated an investigation in late 2012. In the end, Anti-Dumping duties were not levied on Chinese made solar panels. Instead, the European Union and China agreed to set a minimum price level for solar panels.
China is the largest manufacturer of solar panels globally. Customs tariffs for photovoltaic modules from this country are very low. That is why importing them into the European Union may be very beneficial. However, one should keep in mind that such installations must conform to many EU market requirements.
An anti-dumping duty is levied on solar modules imported from China, Malaysia and the United States. The tariff rate for solar panels manufactured in China is 100% to 110%. Docshipper advice : W ant to find a reliable manufacturer? Have a look at our article: 4 Ways to Find a Reliable Wholesale Supplier in China
What Are the Best Solar Panels for Homes in 2024?1. Qcells: Best overall solar panel Qcells is one of the most popular names in residential solar, thanks to quality equipment and great pricing. JA Solar: Best value solar panel.
The Maxeon range is one of the latest offerings from leading solar panel brand SunPower, with their UK offices located in Milton Keynes. The Maxeon panels have placed at the top of the list due to their high efficiency, with a 22.6% efficiency rating compared to the average of 20% for other brands.
We compared top solar brands to pick the best solar panels in the UK in 2024. We chose SunPower as the best for durability, Project Solar for customer satisfaction, and AIKO as the most efficient. Our experts have researched a broad range of solar panels on the market to help you decide which option best suits your needs.
For homeowners who prioritise solar panel efficiency, REC Group's Alpha Pure-R is an appealing option. With an outstanding 22.3% efficiency rate, these are some of the most efficient solar panels in the UK today. These high quality solar panels also have an excellent power output (430W) and they are known for their durability.
As of today and according to data from industry body MCS, almost 1 million homes in the UK have solar panels, proving that even the UK gets enough sun to make solar worth it.there's 28 million homes in the UK.and, they've all got a roof (...well, nearly all).
Save up to £915 on your electricity bills with solar energy! The best solar panel in 2025 is SunPower Maxeon 6. The best solar panel in terms of warranty is the Project Solar Evolution Titan 445, offering a lifetime warranty of 99.9 years. Over the last few years, it has become increasingly popular to install solar panels for homes across the UK.
Of all the cases we examined in making this list, Sunpower's Maxeon range has the most impressive first year, and annual degradation rate in the UK today. After one year, the Maxeon's warranted power output will likely fall by 2%, and degrade a further 0.25% every year after. After 25 years, these panels will retain as much as 92% of their power.
Most solar panels have a lifespan of 25-30 years and maintain about 80-90% of their original output after 25 years, with high-quality models potentially lasting up to 40-50 years.
But, in general, you can expect your solar panels to be a good energy source for a long time, usually around three decades. As solar panels get older, there are a few signs that show they're not as young as they used to be. One big sign is if they're not making as much electricity as before. This can be a slow change that happens over many years.
End-of-life management for photovoltaics (PV) refers to the processes that occur when solar panels and all other components are retired from operation. There are millions of solar installations connected to the grid in the United States, which means there are hundreds of millions of PV panels in use.
Manufacturers employ these factors to assess their solar panels and gauge their projected lifespan: ● Thermal cycling: The repeated exposure to high and low temperatures during the life of a solar panel, which can range from -40°C to 125°C, can cause the materials used in the panels to expand and contract.
Given the typical degradation rate of about 0.5-0.9% per year, a 10-year-old solar panel can be expected to keep 90-95% of its original efficiency. Starting with an efficiency of 20%, it should still deliver around 18-19% efficiency after a decade.
The estimated operational lifespan of a PV module is about 30-35 years, although some may produce power much longer. While few systems are entering the waste stream right now, more systems will come to the end of their useful life in the next few decades.
The performance warranty guarantees that the solar panels will produce a certain percentage of their rated power output over time, usually promising around 80-90% of their original output by the end of the warranty period. These warranties protect your solar investment by making sure the panels work as they should for a long time.
There are two types of inverters used in PV systems: microinverters and string inverters. Both feature MC4 connectors to improve compatibility. In. Planning the solar array configuration will help you ensure the right voltage/current output for your PV system. In this section, we explain what these. Now, it is important to learn some tips to wire solar panels like a professional, below we provide a list of important considerations. Up to this point, you learned about the key concepts and planning aspects to consider before wiring solar panels. Now, in this section, we provide you.
Learning the basics of solar panel wiring is one of the most important tools in your repertoire of skills for safety and practical reasons, after all, residential PV installations feature voltages of up to 600V. There are three wiring types for PV modules: series, parallel, and series-parallel.
Wiring solar panels together can be done with pre-installed wires at the modules, but extending the wiring to the inverter or service panel requires selecting the right wire. For rooftop PV installations, you can use the PV wire, known in Europe as TUV PV Wire or EN 50618 solar cable standard.
Wiring solar panels in series means wiring the positive terminal of a module to the negative of the following, and so on for the whole string. This wiring type increases the output voltage, which can be measured at the available terminals. You should know that there are limitations for series solar panel wiring.
To connect solar panels in series you just plug the positive connector of a PV module into the negative connector of the next module. At the end of the string, you plug the negative connector of the first module with the positive connector of the last one to the inverter.
Solar panels do not always come with the solar connector attached. Attaching a solar panel connector to a PV wire is a two-step process: (1) crimping and (2) tightening the connector, to do this you require a wire stripper, crimping tool, and a solar panel connector assembly tool.
Although there are many different approaches to solar panel wiring, most PV installations feature: Series wiring in which each solar panel's positive terminal connects to the next module's negative terminal. Parallel wiring in which all positive terminals are connected to one another – and all negative terminals are connected to each other.
The panels is the most visible part of any solar system, and it's usually where many of the issues occur. These are the most likely problems you will come across. 1. Electrical problems 2. Bird droppings 3. Potential Induced Degradation (PID) 4. Hot spots 5. Micro cracks 6. Snail trails 7. Corrosion 8. Roofing. A lot of potential problems with solar panels can be fixed with proper diagnosis. Even if you are not the DIY type and would rather let a technician do. The battery serves as storage for all the energy your solar panels produce. Usually these run without a hitch. But problems can occur so check out. Solar charge controllers ensure the battery stores solar power without overheating or overcharging. It is an important component of solar power systems. A solar inverter converts the sun's energy into usable electricity to run mobile devices, kitchen appliances, TVs etc. Inverters may run into problems occasionally, but these.
[PDF Version]However, you must install rigid panels with screws by drilling into your roof. They can be fixed tilt-mounted or affixed flat to your RV roof. Identifying the spots where you need to drill holes on your RV roof applies when installing rigid solar panels with a fixed mount.
As earlier mentioned, the RV solar panel mounting process may differ depending on the panel type. However, you must install rigid panels with screws by drilling into your roof. They can be fixed tilt-mounted or affixed flat to your RV roof.
Many RVers install solar panels on their roof to maximize sun exposure and they do so by drilling brackets directly into the roof. However, for most people, the idea of drilling holes into your RV roof (and potentially opening it up to leaks) is a terrifying thought. Luckily, there are a variety of ways to install RV solar panels without drilling.
One of the most effective methods for mounting solar panels to your RV roof without drilling is using corner brackets. These brackets are made of ABS plastic. They're usually attached to the four corners of the solar panels and adhered to the RV roof using silicone glue. Corner brackets are only for aluminum-framed, rigid solar panels.
Use a decent quality metal spray paint in white. A couple of coats is usually sufficient. (Obviously don't spray the taped side) Assuming you have allocated a spot for the solar panel on the roof of your RV, we are now going to mark the position of the unistruts on your roof.
Connecting the solar panel directly to the RV battery can cause explosions and overheating. Instead, connect it to a charge controller. It'll help guard the battery against overcharging and improve its lifespan. How many batteries do I need for my RV solar system? 1 to 4 batteries are enough for your RV solar system.
Solar modules are measured at STC, Standard Test Conditions, to benchmark the standard performance specifications:Light irradiance of 1,000 W/m 2. Solar cell temperature of 25°C.
Below are some of the most common solar panel testing standards and certifications to look for when comparing solar panels: The IEC is a nonprofit that establishes international assessment standards for a bunch of electronic devices, including photovoltaic (PV) panels.
If a solar panel module successfully meets IEC 61215 standards, that means it completed a number of stress tests and performed well in regards to quality, performance, and safety. IEC 61215 standards apply to both monocrystalline and polycrystalline PV modules, which are the most common types of solar panels.
Importantly, the IEC does not test or certify panels themselves – they establish the standards for other testing facilities to adhere to when evaluating solar panel quality. IEC 61215 is one of the core testing standards for residential solar panels.
The Seaward Guide to Solar PV Testing seeks to offer guidance to PV system technicians and engineers to identify exactly what electrical testing is needed to fulfil their obligations to the customer and also to satisfy the various industry standards (including NABCEP) and best working practices available.
When solar panels undergo performance testing, they do so at fixed laboratory conditions, known as Standard Test Conditions (STC).
Electrical inspection and testing of solar PV installations is a fundamental requirement to ensure system safety and performance, says Darren Bakewell, applications engineer at Seaward Solar.
Price Breakdown of Solar Energy Systems🔹 Solar Panels Cost: £150 – £350 per panel Factors: Panel type (monocrystalline, polycrystalline, thin-film)🔹 Inverter Cost: £800 – £2,000 Function: Converts solar energy into usable electricity. 🔹 Battery Storage (Optional but Recommended) Cost: £3,000 – £8,000.
The average package 3kW or 4kW solar panel system with battery, usually comes with a 4kW to 14kW battery. The average price of a solar panel system and battery ranges from £8,500 - £14,000 but can be considerably higher depending on the battery. If you want to include a storage solution you are going to have to pay more upfront.
It also touches on the cost of solar battery storage in the UK, which, according to Solar Guide, ranges from £1,200 to £6,000. Expensive? Perhaps it's a stretch, but shaving off a few pounds from your energy bill, might just be worth it!
On average a new solar battery will cost between £3,000 and £9,000 depending on the size, type and brand of the battery. How Much Do Solar Batteries Cost? The cost of a solar battery system is dependent on many factors, including the brand of the battery, the batteries chemical composition, storage capacity and it's life cycle.
When factoring in solar panel costs in the UK, the average 4kW solar system with battery price, for a 3-bedroom house, could reach £13,000 to £15,500. On the other hand, pairing a 5kW solar system with a battery can cost around £16,500 - £18,500. As you can see, the prices increase the larger your solar system size is.
GivEnergy battery storage system. Best 4kW solar battery storage system. The lifespan is an important factor contributing to the cost of solar battery storage. A longer lifespan means fewer replacements while a shorter lifespan can add up to future costs.
The amount of storage and usable capacity, measured in kilowatt-hours (kWh), directly influences your solar battery storage system's cost. A larger capacity means it can store more energy and support a larger area, thus, it will result in a higher price. Another factor to consider is storage capacity in series.
Check the power supply and circuit breakers if your solar inverter is not powering on. Troubleshoot low power output by considering factors like shading, high temperature, and bad connections.
There is a good chance that you may see there is voltage but no amp (which means current). Why? Solar panels having voltage and no amps are mostly caused by an open circuit. In simple terms, it means your circuit is incomplete or flawed. Causes include using wrong voltage, wrong Connection, problems with panels or solar charge controller.
The most common cause of low power output in solar panels is obstructions or shadows on the array. Checking Voc (voltage open circuit) and Isc (current short circuit) measurements can help diagnose panel issues. Loose connectors and improperly seated terminals can cause low voltage or current output.
Another way Open Circuit happens is using more Load Voltage than panel voltage. As said earlier current always flows from high voltage to low voltage. When the voltage of your load (Load is something you connect to Solar Panel. Take Battery for Example) exceeds your panel's volt current would not flow from the panel. It'll be reversed.
Your solar panels not working could be from several different issues, including: 1. Lack of sunlight If your solar panels are shaded or concealed by trees, buildings, or debris, they may not receive enough sunlight to perform correctly. So, when installing solar panels, it's best to have them in a suitable location to avoid this issue.
Your Solar Panel Circuit has a lot of equipment. One of the main pieces of equipment is Solar Charge Controller. Now if it is broken your entire circuit will be busted. In the worst-case scenario, the current will stop flowing. Thus there will be zero amps despite voltage. Usually, low-quality charge controllers have this problem.
Probably the most common issue found on faulty solar panel systems isn't actually the panels themselves - it's all down to the inverter. The inverter converts the direct current (DC) generated by the panels into alternating current (AC), which powers the electrical components around your home.
This regulation is intended to solve multiple issues in the existing green regulatory framework, introducing mandatory policies around green buildings, including for the first time a clear mandatory standard f. First and foremost it means a new layer of planning and forecasting energy consumption in line with international standards. In order to meet reduction goals and hit the nation. In addition to focusing on the reduction of energy use through design, construction, and operation, businesses and building owners will need to improve efforts to source power thr. The scope of this policy applies to more than just new buildings and standing ones. It's regulations will also extend to retrofits, renovations, and feasibility studies. Each of these processes. Since the outlay of China's 14th Five-Year Plan, it is clear that green buildings will be a major focus going forward. Policies will grow increasingly broad and granular, reaching across.
[PDF Version]New buildings will also be required to implement solar energy via photovoltaic panels and submit the total energy generation. This drive towards renewable energy will be met in design goals including an increase in the use of natural lighting, insulation, air thermal energy, biomass fuel sources, and geothermal power where appropriate.
Similarly, according to Building Energy Conservation and Green Building Development 13th Five-Year Plan (FYP), China targets the energy-saving renovation of existing residential buildings by more than 500 million square meters (m 2), and energy-saving renovation of public buildings by 100 million m 2.
Regulation-based policies: The Technical Specification for Energy Conservation Renovation of Existing Heating Residential Building, which was implemented in 2001, was the first technical standard for building renovation in China.
There are many ways to realize the energy supply of the building itself. Therefore, as far as the current situation of excessive building energy consumption in contemporary China is concerned, it is due to the imbalance between building energy creation and building energy consumption .
Thirdly, a variety of photovoltaic building integration modules are used, with a total solar power generation power of about 400 KWp, making it a benchmark project for photovoltaic building integration in China , as shown in Table 10.
Over the past two decades, the energy consumption in China's building sector increased by more than 200% (Yi et al., 2018). Like other developing countries, most existing buildings are currently energy inefficient because they were built many years ago with low-energy-efficiency designs and technologies (Li et al., 2017a, Li et al., 2017b).
This article will guide you through the process of repairing cracked solar panels, focusing on two primary methods: covering the panel with laminating film and applying polyurethane.
The first step is to identify the broken solar panel. Once you have found the broken solar panel, you will need to remove it from the system. To do this, you will need to disconnect the power from the solar panel and then remove the screws that are holding it in place. Once the solar panel is removed, you can now proceed to the next step.
Minor Repairs – A repair can be possible with minimal damage, such as small cracks or superficial issues. For example, technicians can replace broken glass without affecting the underlying cells. Microcrack Repair: Microcracks generally cannot be repaired since they affect the internal structure of the solar cells.
Cracked glass: Cracks in the glass of your solar panel can usually be repaired with a special UV-resistant sealant. Damaged wiring: If the wiring on your solar panel is damaged, you may be able to repair it yourself with some electrical tape. More extensive damage, such as large cracks or holes, will usually require the help of a professional.
The most common cause of a broken solar panel is cracked glass. If the glass on your solar panel is cracked, you will need to replace it. You can purchase a replacement solar panel online or at a local hardware store. Once you have replaced the broken solar panel, you can now proceed to the next step.
Damage can manifest in various forms. Some can be easily recognised through visual inspections, while others can be more subtle and may require you to call an expert to inspect the broken solar panel. Common types of damage include: Broken or Cracked Glass – Cracked or shattered glass is one of the most obvious signs of damage.
Microcrack Repair: Microcracks generally cannot be repaired since they affect the internal structure of the solar cells. The panel may still function with minor microcracks but with reduced efficiency. Monitor the panel's output to determine if performance loss is acceptable or if replacement is necessary.
The article explains how to determine the positive and negative terminals of a solar panel, crucial for proper installation to avoid energy wastage. Methods include examining the diode and using a voltmeter to. Look at the DiodeDo you have a solar panel without polarity labels? In that case, you must determine the correct polarity to make sure everything is wired correctly. The polarity of the solar panel is a crucial factor to consider during installation. If your system is not configured properly, you could end up wasting energy and have to buy more power f. Most modern high-power solar modules are made with wire leads that have MC4 connectors on the ends. They use these MC4 connectors because they make the process of wiring. Struggling to understand how solar + storage systems actually work? Looking to build or buy your own solar power system one day but not sure what you need? Just looking to learn.
[PDF Version]Solar panels feature positive and negative terminals. Wiring solar panels in series means wiring the positive terminal of a module to the negative of the following, and so on for the whole string. This wiring type increases the output voltage, which can be measured at the available terminals.
Connect the negative terminal of the first panel and the positive terminal of the second panel and connect to the corresponding terminals in solar regulator's input. The solar regulator will detect the panels and start to charge the battery during sunlight. Wiring solar panels in parallel or series doesn't have to be an either/or proposition.
Series wiring is typically done for a grid-connected inverter or charge controller that requires 24 volts or more. Solar panels are similar to batteries in that they have two terminals: positive and negative. A series connection is made by connecting the positive terminal of one panel to the negative terminal of another.
This connection wires solar panels in series by connecting positive to negative terminals to increase voltage and connects these strings in parallel. All solar panel strings connected in parallel have to feature the same voltage, and they also have to comply with the NEC 690.7, NEC 690.8 (A) (1), and NEC 690.8 (A) (2).
A solar panel wiring diagram (also known as a solar panel schematic) is a technical sketch detailing what equipment you need for a solar system as well as how everything should connect together. There's no such thing as a single correct diagram — several wiring configurations can produce the same result.
Connect the positive terminal of one panel to the negative terminal of the other panel. Connect the negative terminal of the first panel and the positive terminal of the second panel and connect to the corresponding terminals in solar regulator's input. The solar regulator will detect the panels and start to charge the battery during sunlight.