Can “PV+” heating become a new way for PV?

Since the introduction of the "531" New Deal, PV people have survived the most tormented period of time. Resentment, complaints, accusations, disappointment, of course, are also indifferent and optimistic, and all kinds of emotions are pervasive among practitioners. At the enterprise and industry levels, the suspension of production, wage arrears, holidays, price cuts... The pressure and impact of policy changes have accelerated. "531" brings severe pain and reflection, and this change will surely become a major part of the development of the photovoltaic industry, profoundly affecting the future direction.

The Chinese PV market can be described in two words: bright sunshine, stormy rain, and the future hope is still the former. Mencius said that when the heavens fall to the ranks of the people, they must first bitter their minds and work hard. This kind of "temptation" is both ideological and actional. In the face of the current situation, what is the way out for PV? How to work together to get through the last mile before the parity online? Is it turning around or taking a break? These questions continue to torture PV practitioners.

Can “PV+” heating become a new way for PV?

Many PV companies have begun to look at the big cake of “coal to electricity”, which is also an important road for the diversification of the photovoltaic industry. In most parts of northern China, the use of loose coal in winter heating is mainly used. In recent years, the problem of coal-fired pollution has become more and more prominent in recent years. The low utilization efficiency of loose coal and the low-level emission of pollutants have become an important cause of smoggy weather in winter. Since 2015, the country has been vigorously controlling air pollution, and traditional heating methods are gradually being replaced by clean energy.

Beginning this year, the country will promote clean heating methods such as “coal to electricity” and “coal to gas”. From the actual effect, coal to gas has congenital defects such as many limitations, difficulty, high cost and insufficient gas source. The new model of “photovoltaic + electric heating” using solar energy and electric heating for heating came into being! At present, the complete set of “photovoltaic power station + nano electric boiler” built by Shandong Lurong Factory has become the first pilot in Linyi area. People reflect that the trial results are good.

Such a place is so popular with the "photovoltaic + electric heating" mode, it must have its own unique.

The “photovoltaic + heating” system realizes the adaptive combination of photovoltaic power generation, nano electric boiler and smart object management platform. The photovoltaic power station converts solar energy into electrical energy to provide electricity for the nano-electric boiler; the nano-electric boiler uses the form of radiator or floor heating to perform heating cycle; the intelligent material management platform realizes intelligent control and improves energy utilization efficiency. In the non-heating season, the electricity generated by photovoltaic power plants can be sold to the national grid, gaining additional benefits and truly achieving the dual goals of clean heating and energy investment.

The system has two major functions: winter heating and green power production throughout the year. Compared with the traditional heating method, the "photovoltaic + electric heating" system has lower operating costs, and can even achieve heating without cost, and is highly economical. The thermal efficiency of the nano-electric boiler system is very high, up to 99%, much higher than ordinary electric heating and gas heating. The system does not need to invest heavily in infrastructure construction, surplus power online, self-sufficiency, can effectively alleviate grid pressure.

“From the perspective of the operation of the project, it has already matured the conditions for large-scale promotion.” The person in charge of the R&D department of Lurong Company introduced, “This new heating mode is very suitable for the vast rural and independent heating shopping malls, schools, factories, hotels and other places. When the photovoltaic power generation is higher than the electric heating load, the user can sell the excess energy to the national grid. When the solar power generation is lower than the electric heating load, it can be supplemented by the grid power, which is very cost-effective."

Compared with other heating methods of coal to gas and coal to electricity, “photovoltaic + electric heating” has many advantages such as clean and pollution-free, high utilization efficiency, low difficulty in reconstruction and low cost of use, and this new heating mode can be built. It is sustainable, reproducible, and can be promoted. From the trial operation of the Green Rong factory project, the effect is very satisfactory.

We can calculate the account: taking Shandong area as an example, using nano-electric boiler system for heating, 100m2 residential, a heating season for 4 months, cost 2400-3500 yuan, average 24-35 yuan / m2, and municipal heating It is flat compared to the basic (municipal heating 23-35 yuan / m2). The actual heating area of ​​users who use air-conditioning heating is generally 30-50m2 in one to two rooms. The actual heating area is 50m2, a heating cost is 3500-7000 yuan, with an average of 70-140 yuan/m2, a heating season. The nano electric boiler can effectively save 30%-50%. After adding "photovoltaic +", heating power can basically be solved.

The “Photovoltaic + Electric Heating” demonstration project of Green Rong Factory is located in the exhibition hall on the first floor of the office building of the factory. It is equipped with a 5.5kw rooftop photovoltaic power station and a 6kw nano electric boiler system. In the case of all commercial power, the 6 kW nano-electric boiler has a heating season (4 months) and the usage cost is around 1800-2600 yuan. After installing the photovoltaic power station, a heating season can save more than 1,000 yuan during the day. In the non-heating season, the power generation capacity is more than 4,800 kWh, and the additional electricity sales revenue is as high as 2,000 yuan.

The future prospect of the new energy model of 'photovoltaic + electric heating' is expected!

Solvent Based Rheological Additives

Bentonite Clay,Solvent Based Clay,Organoclay Organic Bentonite Clay,Solvent Based Rheological Additives

CHANGXING GUANGDA NEW MATERIALS CO.,LTD. , https://www.gdbentonite.com