How to choose a battery for photovoltaic / solar power system?

A home battery system stores surplus solar power for later use. The solar battery extends the use of a photovoltaic system’s generated energy and will provide free, sustainable power even when the sun is not shining and the modules don’t produce energy.

 Photovoltaic systems without a storage opportunity produce electricity to be used immediately. This is rarely effective, since solar energy is mainly generated during the day, when the power demand of most households is low. However, electricity demand increases significantly in the evening.

The difference between the Lead and lithium batteries
Battery storage systems for residential use are equipped either with lead-acid, lead-gel, or lithium batteries. Lead-acid batteries were used mostly in the past, amongst other things, as car batteries. Given their considerable advantages, lithium batteries are becoming increasingly accepted over lead-acid batteries. They have come to be regarded as the standard in photovoltaic in recent years. Lifetime: The expected lifetime of lithium batteries is around 15 years, whereas the maximum for lead batteries lies between 5 and 10 years.
Safety: Lead batteries must be housed in a ventilated room since they emit gases. This is not necessary with lithium-ion batteries.
Depth of discharge: Lithium-ion batteries discharge up to 100% of stored power. Lead-acid batteries, however, can normally only be discharged up to 50%, since deeper discharge reduces their overall lifespan.
System efficiency: The system efficiency of lithium-ion batteries can exceed 90%, where only approx. 70% is possible with lead batteries. Photovoltaic systems with lead batteries therefore have to be larger, leading to unnecessary extra costs.
Our advice: Choose a lithium battery to store electricity for solar power systems

Photovoltaic modules / PV modules / solar panels

solar panels: high-performance, efficient and durable
 Solar or photovoltaic modules are the heart of every photovoltaic system. The modules contain parallel or series-connected solar cells that generate energy from solar radiation. For private applications and small businesses, the solar modules are usually mounted on the roof of the house. The output of the PV system created by interconnecting the modules depends on many factors such as the number of modules, module type and output, roof pitch or solar radiation.

How do solar panels work?
 Photovoltaic modules (PV modules, solar panels) convert sunlight into electrical energy. The solar cells inside each panels are responsible for this. When light shines on the cell it creates an electric field across the layers. The stronger the sunshine, the more electricity is produced.

Since an individual solar cell produces only a little electricity, several of them are combined per solar panel. Inside these cells is a layer with a surplus of positive charge carriers (p-layer) and a second layer with a surplus of negative charge carriers (n-layer). An internal electrical field builds up at the so-called p-n junction (the interface between the layers) which is normally made of silicon. This leads to a charge separation of the charge carriers released by the incidence of light. The electrical charge can be made usable via metal contacts. Direct current then flows if an electrical consumer is connected.

How to Choose Solar Panels for Camping

You have noticed that you need additional power for your camping trips, and you have realized that solar panels are the best choice to achieve this.
Having solar power camping gear is one of the best ways to ensure that your batteries won’t run out of power when you are enjoying your vacations in a remote location. However, with so many brands, models, and possibilities, it might be hard to select the right solar panel for you.
First, you need to select the type of solar panel that best suits your needs.
For instance, there are three types of camping solar panels.

Solar Chargers
The best solar panels for camping are the so-called solar chargers. These devices generally have a small size mainly designed for charging electronics such as smartphones, laptops, iPads, etc. They integrate monocrystalline or polycrystalline technology in a foldable solar suitcase that can be easily put away or taken out.
The portability of these products makes them an attractive option for those campers that constantly travel and that are mainly looking for a camping phone charger. There are also bigger solar chargers that are occasionally called solar blankets that can be easily folded to put under the seat.

Portable Solar Panels
The second choice is the so-called transportable solar panels. These are generally traditional modules that can be folded and safely installed or kept away. The size of these modules is bigger than the solar chargers and they can be used for more demanding applications such as charging appliances and 12V battery packs. This is a good option for campers that do not regularly go on trips, but instead go for vacations.

Fixed Mounted Solar Panels
The third choice is the typical fixed mounted solar panels. These are the traditional modules that we constantly see on top of the roof. In this case, it would only be applicable for people that have a camping trailer or that want solar panels for an RV.
The greatest advantage of these products is that you won’t have to set up the power station kit every time that you go out camping and it avoids the possibility to get the modules stolen since they are fixed on the roof. These are the perfect options for campers that have a nomadic lifestyle.

IoT: What you need to know about Internet of Things

The Internet of Things, or IoT, is a term you’ve probably heard about in recent months. But do you really know what he means?

Imagine a world where all objects are able to exchange information and communicate with each other. Objects also able to communicate and interact with their users using the Internet but also other communication networks much less known but all effective. This is the world of the Internet of Things.

IoT

By 2020, the Gartner expects more than 50 billion connected objects on the market. In other words, we are witnessing a real digital revolution that will radically change our lifestyles.

To illustrate, let us take an example in the field of Smart Home. Imagine your refrigerator getting smart. A refrigerator capable of telling you in real time what kind of food is inside and capable of ordering for you when you need to restock.

The refrigerator is an example. But the number of objects that can be connected today is unlimited. The potential of the Internet of Things for each of us, but also for business and industry is immense.

For the time being, in the consumer field, the IoT is still very much a gadgeting activity and brings little value to its users. Where the fields of application are really going to be interesting concern energy management in buildings, industry, agriculture, security, transport or health.

It is impossible today to imagine what the Internet of Things has in store for us. The field of all possibilities is open. But the democratization of the IoT is under way.

Internet_of_Things

And to better understand how it works, here are three things to remember:

1. Objects and the Internet of Things

IoT relies primarily on connected objects. A connected object has the ability to capture data and send it, via the Internet or other technologies, for analysis and visualization on dedicated dashboards. Connected objects interact with their environment through sensors: temperature, speed, humidity, vibration… In the Internet of Things, an object can be a vehicle, an industrial machine or a parking space.

2. The Internet of Things and Data

The little nugget of the Internet of Things is data. And especially the ability to capture raw data, temperature, vibration, humidity… to transform it into intelligent and usable information. These billions of connected objects will create an exponential volume of data that will have to be stored, analyzed, secured and restored for various uses. This is therefore a major challenge.

3. The Internet of Things and new services

The added value brought by the Internet of Things is in the new uses that it will bring. In the industrial sector, for example, we can now remotely monitor machines, perform predictive maintenance on equipment, or improve product traceability. Every day, connected objects will generate billions of pieces of information that will enable businesses to create new services.

The Internet of Things will literally transform our society. This statement may seem utopian to you, but just see how things have evolved since the arrival of the iPhone ten years ago.

It is up to us to take advantage of the potential of the Internet of Things and invent the uses of tomorrow.

Model Application of Internet of Things from CaryMart:

This product is a WiFi controller/WiFi RF converter. It connects to the Internet through wireless WiFi signals, and uses the mobile phone APP to achieve various remote controls. This product can quickly learn the remote controls of traditional RF control devices, such as the remote controls of garage door, roller shutter, light, electric gate, pump, ventilation, irrigation sprinkler or alarm security devices, and wirelessly control the relevant RF devices by transmitting the same RF signal. Finally realize remote control through the mobile phone APP anytime and anywhere. Traditional RF remote controls have a limited range of control. This product can replace RF remote controls through signal conversion to transform traditional RF remote control devices into smart devices which can be remotely controlled via mobile phones and the Internet.

Source : http://www.carymart.com/blog/iot-what-you-need-to-know-about-internet-of-things/

Why choose an electric remote control?

 

With technology, electric shutters can be opened and closed from a smartphone or tablet. Not only the electric shutters can receive this remote control, but it is also possible to control the gate, the lighting and many other electrical equipment in the house. If the smartphone or tablet is lost, it would be difficult to manage these devices. For electric shutters, a remote control is recommended.

remote control

The remote control for roller shutters.

The possession of a remote control for opening and closing the roller shutter is more reassuring. We recommend the cam remote control which will allow you to control your shutters remotely. Very light, Carymart remote controls are easy to program: they are equipped with a self-learning programming wireless remote control system. From the simplest to the most sophisticated, there is a wide variety of cam remote control with different colors and different shapes. They are suitable for collective housing. The cam remote controls operate with a high frequency which allows you to open the electric shutters from a distance.

 

Motorization of roller shutters.

The motorization of the shutter remote control has great advantages. The main advantage is undoubtedly comfort. You will be able to control the opening and closing of the shutters remotely. This solution comes with optimal security. Opening the shutters will be more convenient and will not require much time. The task becomes even easier on a new roller shutter. This system is powered by electricity. These motors are highly reliable and easy to install. It is possible to program the opening and closing of the roller shutters at a specific time to guarantee total security. A locking system can be added to the motor, which allows opening only by the motor actuator. Many professionals can help in the choice of motors for motorization.