DETAILS OF THE COST OF BUILDING SOLAR PANEL PLTS INSTALLATION AT HOME

Summary

In this video, the speaker explains the key differences between 12V, 24V, and 48V systems used to power electrical devices. They focus on the current (ampere) needed to handle a 1000W load for each system, stressing the importance of choosing the right cables to prevent energy loss and safety risks. The speaker highlights that 12V systems are best for smaller loads, while 24V and 48V systems are more efficient for handling larger devices. Viewers are encouraged to select quality components for their solar power systems and reminded to prioritize safety during installation.

Takeaways

• 😀 Higher voltage systems (24V, 48V) are more efficient for large loads (e.g., 1000W) as they require lower amperage compared to 12V systems.
• 😀 A 24V system for a 1000W load requires approximately 41 amps, requiring large copper wires to safely handle the current.
• 😀 A 48V system, with the same 1000W load, only requires 20 amps, resulting in less heat generation and smaller wire sizes.
• 😀 A 12V system, for a 1000W load, draws around 83 amps, leading to significant power loss and risks of cable overheating or melting.
• 😀 To avoid excessive power loss, a 12V system is better suited for smaller loads (e.g., 500W).
• 😀 Using oversized cables in lower voltage systems can help reduce the risk of overheating and improve overall system safety.
• 😀 If using a 12V system, it's crucial to use thicker cables (e.g., 16mm) to handle higher amps, but it may still result in energy inefficiency.
• 😀 Choosing the right electrical components, including solar panels, inverters, and batteries, depends on load size, voltage system, and safety concerns.
• 😀 Electrical systems should be carefully set up to ensure that wires do not overheat or cause a risk of melting at connections.
• 😀 Selecting the appropriate voltage system (12V, 24V, 48V) based on your power needs helps optimize energy usage and reduce risks.

Q & A

What is the main challenge when using a 24-volt system for a 1000-watt load?

The main challenge with a 24-volt system for a 1000-watt load is that it draws around 41 amperes of current. This requires large cables, typically made of pure copper, to handle the load safely and efficiently.

How does the current requirement change when using a 48-volt system for a 1000-watt load?

A 48-volt system requires only 20 amperes of current for the same 1000-watt load, which allows for smaller cables to be used, improving both safety and efficiency.

What is the current required when using a 12-volt system to handle a 1000-watt load?

A 12-volt system requires around 83 amperes of current to handle a 1000-watt load, which necessitates using very thick cables to avoid overheating and energy loss.

Why is a 12-volt system not recommended for handling high power loads like 1000 watts?

A 12-volt system is not recommended for high power loads like 1000 watts because the current demand is too high (around 83 amperes), requiring very thick cables to prevent overheating and potential cable damage.

What risks are associated with using cables that are too thin for high current applications?

Using cables that are too thin for high current applications can cause them to overheat, potentially leading to cable failure or even melting at the connections, which poses a significant safety risk.

What is the suggested cable size for a 24-volt system handling 1000 watts?

For a 24-volt system handling 1000 watts, cables need to be large enough to handle 41 amperes. Typically, copper cables of substantial thickness are required for this load to ensure safety and efficiency.

What is the recommended system for handling smaller loads like 500 watts?

A 12-volt system is more suitable for handling smaller loads, such as 500 watts, as it draws less current (around 42 amperes) and avoids the issues of overheating and excessive energy loss.

What is the primary reason why a 48-volt system is more efficient than a 24-volt system for high power loads?

A 48-volt system is more efficient because it requires less current to power the same load. This reduces the need for large cables and minimizes energy losses due to heat, making it safer and more cost-effective.

How can using oversized cables improve the safety of an electrical system?

Using oversized cables for high current systems can improve safety by reducing the risk of overheating. Larger cables allow more current to flow without excessive heating, ensuring the system operates safely and efficiently.

What are some key factors to consider when choosing solar panels, inverters, and batteries for a home system?

When choosing solar panels, inverters, and batteries, factors like price, quality, and brand play a significant role. It's important to select components that match the system's voltage and load requirements to ensure safe and efficient operation.