warming up to the heat from the sun - all in one solar street light

When it comes to the "sun", most of us think of the blue, the Sun-
Panel for power generation.
This is because "solar PV" has grown very fast in India and elsewhere due to historical reasons and has become ubiquitous.
But there is another simpler, more traditional "solar" that, as we all know, can deliver better returns for every dollar invested.
That is to say, "solar heat ".
"Solar pv" works through photons in the sun's light in half
Conduct the material in the panel and guide it through the wire
Electronic flow is electricity.
Therefore, solar photovoltaic is most effective in sunny places.
In contrast, the solar thermal system absorbs the heat of the sun and directs it to where it is needed-such as the drying of spices, fish, or wet paint.
Use collectors like we call the Sun
In the face of the "panel" or "module" of the photovoltaic film, in terms of solar heat, what is open to the Sun is called a "collection", measured in square meters.
They come in different forms, but mainly as tubes, plates or reflector that focus the sun on the heat
Select hot fluid ".
The interesting thing about these solar collectors is their economic benefits.
Chidambaram Palaniappan holds a PhD in solar drying and operates a solar thermal company called Sun Best, which provides plumbing-
Some data is provided.
He said that 100 of the collected area can generate 40 KW of the heat energy, and the cost is about 7. 5 lakh.
In contrast, it takes about Rs 20 to generate 40 KW of electricity.
Another expert, the solution of megawatt, president of Malik Siddharth (
Make the reflector-based systems,)
Compare solar heat with coal and diesel.
He said he would produce thousands of units. kWhr)
Electricity charges for diesel are $100;
With solar, you can do it within $15.
A big reason is that in solar photovoltaic power generation, there will be some loss in converting light energy into electric energy, while in solar thermal power generation, there is no conversion --
The whole process is hot.
Now, there is nothing esoteric about drying with the heat of the sun.
Solar water heaters have been around for a long time, for example.
If you go to Shirdi or Tirupathi and peek into the kitchen, you will see solar energy used to cook for thousands of pilgrims.
It is not uncommon to use solar energy even in industry.
For example, cycle maker TI Cycles has been using it to dry paint for nearly a decade.
TTK Prestige put a system (pictured here)
A few years ago, a pressure cooker was produced on the roof of the Salem factory.
However, relative to the potential of solar energy, the use of solar heat has been tepid.
Experts believe that early systems were expensive and they gave vis-a-
Current fossil expert
The fuel-based system is not that high.
But just as it began to get cheaper, due to the sharp drop in the price of modules, "solar photovoltaic" took off in a major way (
In turn, due to oversupply from China).
Users and financiers quickly learned solar PV and were satisfied with it;
Solar heat has just fallen behind and lost its mind.
The only good news now is that it is recovering. The not-so-
The good news is that it is still not growing as fast as it can.
Jaideep Malaviya, an expert at Solrico, a solar market research and communications agency, estimates that India's solar thermal industry grew by 26% in 2018, down from its growth rate in 2017;
Siddhar believes that the "absolute minimum" growth rate should be 100%.
So the question is, how can things get more complicated?
A good first step is to get the government to focus on solar heat as well as solar PV.
Well, there's a 30% subsidy for solar thermal equipment, but ironically, as every expert in Hinduism says, it's only going to get in the way, not help.
Customers see the subsidy on paper and want to use it, and the management of the subsidy is so complicated that they are exhausted.
The industry is not willing to own it at all.
"The subsidy is fatal and it causes a lot of heartburn," said Dr . "Palaniappan. Mr.
Malaviya suggested that the subsidy plan be readjusted in order to give subsidies to Indian manufacturers to encourage local production rather than production in China.
The mistake of key users is to get the highest potential users. the industry —
Solar heat is used.
The role of the industry has been fully recognized, so an initial acronym word "ship" was born, which represents "solar heating in industrial processes ".
But solar energy is space.
In a given space, the industry tends to use it for the old
PV is familiar.
The move to persuade the industry to try solar heat came in the form of a "solar return project" funded by the German "international climate initiative.
The project aims to promote ships in India, South Africa, Mexico and Brazil, and the report of the places where India should pay first attention is about to be released. Mr.
Malaviya, who is involved in the project, said that the report has identified three areas --
Early solar-heated dairy products, food processing and pharmaceutical products, and automotive components.
The dairy industry has stopped.
Big companies like Hatsun Agro and Amul have started using the steam generated by solar heating in their processes. (
Hatsun calls its products "Solar Ice"cream’. )
There are 1,200-
Milk processors;
They need most of their energy in the form of heat.
So the ball is rolling, but it needs to kick in the position of the goal.
The key is to make the industry work.
Experts believe that, in due course, the example set by early adopters will receive more attention.
However, according to him, the technology of collectors is mature enough.
Malaviya, in a concentrated solar heat, can be achieved by following some improvements in the equipment that allows dishes to face the sun.
Today's solar thermal power plants can generate about 250 degrees Celsius in heat.
Once the level of comfort rises, financiers will become more confident and will step in because the return is decent --
More than 22%, according to Mr. Malik.
With the influx of money, companies like Sun Best and megawatt solutions can do "Opex models" that have devices and the user industry pays only for the Heat delivered.
The "Opex model" is common in solar PV, but it requires economic fuel to boost growth.
Solar thermal power generation is an emerging industry with unlimited potential.
In this industry, there is a strong call for the government to become a springboard. Dr.
Palaniappan remembers the idea circulating in the bureaucracy many years ago that a "solar dry center" was built ".
Take it back, he said.
Heating with the sun is as old as civilization-
So solar heat just goes back to the basic state.