Solar Battery System Types – AC Vs DC-coupled

13 October 2020

Before you choose the right solar battery, you first need to learn what AC and DC coupling means. Your solar battery storage system determines how effective your solar air conditioning will be.

There are two main ways to connect your power sources when you add battery storage to your solar energy system. AC and DC are the two main types of voltages used to conduct electricity.

Let’s find out what differentiates these two battery systems.

Contents

1 What is the Difference Between AC and DC Power?
2 Is a Battery DC or AC?
3 AC Vs DC -Storage Architecture
4 AC-Coupled Systems
- 4.1 Strengths
- 4.2 Weaknesses
5 Which Is Better for your Solar and Storage Needs?
6 Final Thoughts

What is the Difference Between AC and DC Power?

AC stands for Alternating Current, and it means electric power first flows in one direction and then the other. This is the type of electric current on the main grid, and it’s suitable for your solar air-con.

DC power, on the other hand, stands for Direct current, and it means electricity flows in one direction only. This is the electric power that your solar panels generate from sunlight. The energy stored in your home’s solar battery is usually DC power.

Since your solar panels generate DC power and your solar air conditioning and other home appliances need AC power, you need a solar inverter to convert this energy to AC electricity. There are three main types of solar inverters in the market;

Traditional Inverters

This first type of inverter is also known as the central inverter because it draws power from your solar panels. If you have a solar air conditioner at home, you’ll need this kind of converter to keep it running.

It is usually a box that’s installed next to your home’s breaker box. It functions by combining all DC energy from your solar panels and converting it to DC power so that you can use your solar air conditioner Malaysia.

Micro-Inverters

The second type of inverter is an in-built component on individual solar panels. They are small inverters found on the backside of your panels. They allow your panels to individually and independently convert the harnessed DC power to AC energy.

DC-Optimizers

Lastly, we have the DC-optimizers that are devices that also go at the back of individual solar panels. Unlike Micro-inverters, they don’t convert DC to AC. Instead, they optimize conditions to ensure your home’s central inverter has an easy time converting DC to AC power. These converters work in a hybrid solar energy system that includes a traditional central inverter and in-built solar panel inverters.

Is a Battery DC or AC?

Batteries, like solar panels, store and produce DC power. Since your home’s electricity is AC, it means batteries in devices have converters that turn the AC power to DC energy.

DC batteries use the same solar inverters that your home uses to convert the stored DC energy to AC power. AC batteries, on the other hand, have an in-built inverter that directly does the conversion.

AC Vs DC -Storage Architecture

Comparing the strengths and weaknesses of these two battery storage systems helps you choose what is best for your home.

DC-Coupled Systems

The DC-coupled system is designed to connect directly to the main grid the same way as your solar panels. In which case, a hybrid inverter is required to create a synergy between the solar battery and the solar panels.

Strengths

There is less energy loss because it’s a one-way conversion.
Your system makes you eligible for Net Energy Metering if your solar panels can generate excess energy.
It is a simple system which translates to lower costs.
It is a smart option for people who’re just beginning their solar energy journey.

Weaknesses

If you already have a PV system, incorporating it is complex and costly.

AC-Coupled Systems

The AC-coupled system operates with two solar inverters; a conventional inverter and an additional storage inverter that charges your solar battery. It might seem like a complicated system, but it is very easy to setup. However, as compared to the DC-coupled system, it’s less efficient because it has to be charged.

Strengths

It is way more flexible than the DC-coupled system. The inclusion of two inverters allows you to adjust the location of the battery at will.
It is compatible with all kinds of solar inverters.
It is a cost-effective solution for people that already have a PV system.

Weaknesses

The system is slightly less efficient as compared to the DC-coupled system because of the AC-DC-AC conversion.
The system will have more points of failure because you’ll have one inverter in a different location.

Which Is Better for your Solar and Storage Needs?

If you already have a solar energy system at home, you should go with the AC-coupled system because it’s flexible and easy to set up. However, if you’re just starting your solar journey, you should go with the DC-coupled system; if you generate excess energy, you get to sell it to the main grid.

Final Thoughts

Understanding the difference between these two solar battery systems helps you make the right purchase. Ensure that you work with a professional who understands what is best for your home. Solar energy systems are here to stay, and you might as well jump on the bandwagon because it’s a system that pays for itself.

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Mashum Mollah

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This low-carbon liquid fuel has gained attention lately because it seems like the long-awaited solution to pollution issues.About The HVO FuelHVO implies using cooking oils and similar fatty waste as fuel. That's not an entirely new concept since the use of processed vegetable oils in diesel engines has been known for more than a century. Nevertheless, it's a new hype among eco-conscious consumers because it's plant-based and very clean. Its CO2 emission and the number of PM particles are almost 90% lower than diesel and kerosene, fossil fuels that are still widely used.The base of HVO is vegetable oil, that is, used cooking oil, such as sunflower, peanut, grapeseed, etc. However, it can also be made of both food-grade and non-food-grade oils (like palm or soy), animal fat residues, and tall oil. In their original state, these liquids could not be used as fuels, so they undergo hydrotreatment. It serves to change their consistency and composition for use in standard diesel engines.Hydrotreatment involves the use of hydrogen to eliminate oxygen from the oils. This treatment takes place at very high temperatures, and then glycerides, or fat components, are separated. That's a refining process that leaves this new fuel with minimal impurities, meaning that, during its combustion, there will be no harmful by-products and gases. That means less damage to the engine itself but also drastically less pollution.The Use Of HVOIn general, HVO represents an alternative to fossil fuels, especially diesel, one of the major pollutants globally. So this new energy source can be used in all engines made for diesel. It means that its most common application will be in car engines. Still, it has found its purpose in off-road and agricultural machinery, boats, and generators. Some of the major truck makers have already made vehicles powered by HVO, as in this biodiesel-powered racing truck.This new fuel from reputable manufacturers like SyntechBiofuel.com is equally usable in modern diesel engines as well as in older types that don't have electronic fuel injection. They will have almost the same performance in operation as if regular diesel was used, only with much less damage to the engine, the entire circuit, and the environment.Alternative fuels also have a huge potential to become the primary energy source for heating systems. Oil and gas still dominate in this area, but more and more households and industrial facilities are turning to alternative solutions. For instance, heat pumps are a popular yet costly solution.HVO can be an even better and more cost-effective option if you plan to go green, that is, to switch to it from standard heating systems that use oil or kerosene. This venture won't cost you extra money because there's no need for system modifications and add-ons, as would eventually be the case with heat pumps.Benefits Of Switching To HVO FuelAs said, using HVO cuts the emission of harmful gases by up to 90%, depending on what makes the base of this fuel. That results from clean combustion because there are no impurities and PM particles in this processed liquid. Moving on, it means that engines will utilize a higher percentage of fuel, so their consumption will be lower. Simply put, HVO is a cleaner and more economical solution than diesel.This fuel is also sustainable, as it's made from waste (used cooking oil and animal fat). It also emits much less greenhouse gases than other fuels. As there's no carbon in HVO, there are no toxic and potentially carcinogenic combustion by-products.Another advantage of using HVO in standard diesel engines is that there is no need for their upgrades. But if you plan to use it as a replacement for heating oil in oil-fired boilers, there might be some minimal changes to your existing system. In any case, this can bring significant savings to both individuals and companies that, for some reason, have relied on fossil fuels until now.Because it doesn't contain oxygen molecules, HVO has a fairly long shelf life. So you can store it in specialized containers for up to 10 years without fear it will lose its properties and viscosity. For the same reason, HVO's freezing point is lower than that of ordinary diesel. Also, it won't harm the environment in case of accident spillage or leak.How HVO Differ From FAME?FAME is biodiesel, which isn't the same as HVO, although there are certain similarities. For starters, both are plant-based. But what makes a significant difference is how they're made. FAME utilizes esterification, which turns fatty molecules into esters and keeps oxygen molecules in it.As explained, HVO is obtained by a refinery process that removes oxygen from fats, leaving them ester-free, clean, stable, and non-prone to oxidation. So, unlike FAME, hydrotreated vegetable oils can't spoil, thicken, or degrade during storage.HVO is the fuel of the future, and there are many good reasons for that. It's a clean, non-toxic, sustainable, and economical alternative to diesel. It contributes to reducing the global carbon footprint, bringing no harm to the living world and the environment.Read Also:Fuel Storage Tanks: Ensuring Safe And Reliable Fuel Management6 Effective Ways To Improve Your Car’s Fuel Efficiency5 Ways To Improve The Fuel Efficiency Of Your Truck

Maximizing Energy Efficiency: An Ultimate Guide To Instant Hot Water Dispensers

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Read Also: Pros And Cons Of Mini Splits For Cooling Tips For Maximizing Efficiency Beyond choosing a quality efficient instant water heater, certain usage habits also optimize savings:Set temperature only as hot as needed Insulate pipes to reduce standby losses Schedule a vacation mode to save energy when away Limit excessively long showers that deplete capacity Have the unit flushed and maintained yearly Consider adding a recirculation pump if distances from taps are longProper installation and maintenance ensure your system runs at peak efficiency for the long term. Smart Technology Provides Added Control Advanced instant water heaters offer built-in Wi-Fi connectivity and smart features. These provide greater control and customization for increased efficiency. 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Some installations in northern regions place heaters in utility rooms instead of mounting them outside. How difficult is it to install an instant hot water system? It's recommended to hire a professional for the complex venting and electrical work unless you are very experienced. Typical installs take a full day. Final Thoughts Tankless instant hot water dispensers provide an energy-efficient and sustainable upgrade from outdated tank heaters. Combined with eco-friendly usage habits and proper maintenance, they deliver significant cost savings and environmental benefits. Adopting a whole-system approach maximizes efficiency. Read Also :Know Why Content Marketing Is Important For SEO 4 Points To Consider When Creating A Great Content Marketing Strategy Today How To Deal With Debt By Doing Business Marketing Smartly?

Prepare Your Solar Panels for the Fall

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Solar Battery System Types – AC Vs DC-coupled