What is the cheapest home solar power system to cost??????

According to the number of watts, 12 yuan a watt. The minimum is 100 watts, 1200 yuan.

If it's good, it's 10W to 18W, and the next time it's 5W to 8W.

1 kilowatt is about 10,000, 2 kilowatts 2 is rising, 30 million to 5 kilowatts is basically 10,000 per kilowatt, and more than 10 ** will be cheaper. Solar energy refers to the energy released by a thermonuclear reaction inside the sun. The Sun is a large, hot star that is constantly undergoing thermonuclear reactions, radiating large amounts of energy, some of which reach Earth.

Main advantages: The sun reaches the earth with a lot of energy, part of which is used by plants and converted into bioenergy, and part of it is used by the evaporation of water and converted into water energy, and a lot of energy is wasted.

The sun is a huge natural energy source, and the use of solar energy has great prospects. In order to make more efficient use of solar energy and convert sunlight into heat, electricity, chemical energy, etc., scientists have studied the use of large-area light devices to concentrate solar energy and convert it into water or electricity, and have designed and manufactured a variety of solar energy devices.

**300-8000 RMB.

The household power generation system consists of a photovoltaic array composed of solar cell modules, a solar charge and discharge controller, a battery pack, an off-grid inverter, a DC load and an AC load. If the output power supply is AC 220V or 110V, an inverter is also required.

The photovoltaic array converts solar energy into electrical energy when there is light, supplies power to the load through the solar charge and discharge controller, and charges the battery pack at the same time; When there is no light, the DC load is supplied by the battery pack through the solar charge/discharge controller, and the battery also directly supplies power to the independent inverter, which is inverted into alternating current through the independent inverter to supply power to the AC load.

1. Solar generator 220V full set of solar power generation lamp outdoor lighting full set without 220V output.

**: 213 RMB.

Comments: This solar generator is cheap, but this one is simpler, generally used for household bulbs, routers, chargers, fans, etc., small power within 100W household appliances can be used.

2. Wolf Man portable integrated outdoor lighting 80 watt photovoltaic panel 65ah battery output 1000 watts.

**: 1280 RMB.

Comments: This is an 80-watt photovoltaic panel with an output voltage of 1000W, and this machine can be used for mobile phones, TVs and other household appliances.

3. Kangming multi-functional mobile power supply solar photovoltaic power generation system 220V 918 [9000 mAh].

**: 389 RMB.

Comments: This is Kangming mobile power supply, but the electric capacity is only 9000 mAh, but it is still possible for outdoor use in general families, short-term emergency lighting and charging can be used, and the key is not expensive less than 400 yuan.

It depends on how many appliances you plan to use solar power to power electricity, the power and time of each appliance, the latitude of the location, the number of rainy days in the local area, and the size of the power generation system.

Due to the large starting current of the air conditioner and refrigerator, it is not recommended to carry the air conditioner and refrigerator, the light TV and lighting are generally about 1000W, according to 8 yuan watts, ** in about 8000 yuan;

If you have to bring air conditioning and refrigerators, the power of the power station should be more than 5000W, which is too big to be connected to the grid.

If you install a home power generation system, please consider the quality first, because as far as I know, many manufacturers should use Class A cells when producing panel components, but some manufacturers use Class B cells, so it is recommended that you choose a well-known brand of photovoltaic power station system, generally ** in 3-50,000 yuan, to ensure that the service life can be used for 25 years.

This is very transparent, 1 kilowatt is about 10,000, 2 kilowatts 2 emerging, 30 million to 5 kilowatts is basically 10,000 per kilowatt, more than 10 ** will be cheap, don't buy miscellaneous solar photovoltaic, it's too pit, can't mention the brand, I hope it can help you, if you still have questions, you can continue to ask questions, give an adoption.

30,000 for 3,000 kilowatts, 10,000 for five dry watts, Huangming household photovoltaics.

The solar power system is mainly composed of solar cells, storage batteries and inverters.

First of all, you must determine the power of your home appliance to decide**,

For the solar power generation system, it depends on the electricity consumption of the power generation household, and the local sunlight situation should be considered at the power generation point. Distributed photovoltaic power generation is divided into two modes: self-consumption, surplus electricity grid, and full grid access, plus local subsidies. You can't invest much on your own.

It will pay for itself in about three to five years, and it will be profitable in the future.

Like the United States, Australia, etc., private people who can't run out of electricity every day can be sold to the state.

Therefore, if you rely on the power generation system alone to generate electricity, you will not be able to recoup the cost if you use it at home.

The battery plate and bracket may be used for 10 to 25 years, but the battery that stores electricity is replaced every 2 years, and the good battery is replaced every 5 years, and a batch of batteries is enough for your family's electricity bill for many years.

Generally, grid-connected power generation is about 10 yuan a watt, the larger the installed capacity, the more discounted, Huangming has recently installed a lot, you can also enter the official website to find out!

4-5 kWh of electricity per day can install a solar power system of about 1500 watts.

We have installed a few sets in Huaiyang, Henan, and we can communicate at the bottom.

As of September 2020, ** is around 3000-5000 yuan.

Different PV installation companies have their own pricing standards, and the reasonable construction cost of PV systems is generally around 8-10 yuan per watt. PV modules account for about 49% of the total investment, inverters and other electrical equipment account for about 10%, and cables and brackets each account for about 10%, which accounts for a high proportion.

Each kilowatt photovoltaic power generation system can generate four kilowatts of electricity per day, requiring 10 square meters of installation area. As long as the power generation of the photovoltaic power station is greater than the electricity consumption at home, then all the electrical appliances in the home can be driven.

First of all, we need to know the principle of the grid-connected photovoltaic power generation system and what equipment is needed.

First, the working principle of photovoltaic power generation system:

The high-performance solar cell modules are centrally installed on the roof through the bracket, and after series and parallel, they form a solar cell array, which absorbs sunlight and generates direct current, which is converted into alternating current for home use after passing through the photovoltaic inverter and uploaded to the power grid.

Second, the system composition:

Mainly: photovoltaic modules, inverters, brackets, DC cables, AC cables, subsidized meters, and two-way meters.

Third, the market **:

The market price of photovoltaic systems is generally 8-12 yuan per watt. Generally, the cost of installing a 5kw solar power generation system in a family is about 4-60,000 yuan.

Fourth, the income of household photovoltaic power generation includes three parts:

1. Subsidies to make money: national subsidies + provincial subsidies + city and county subsidies (slightly different from place to place), whether you use it or sell it, as long as the electricity is subsidized.

2. Save electricity bills: power generation for your own use, no need to pay electricity bills, which is equivalent to making money.

3. Sell electricity to make money: Sell inexhaustible electricity to the state, and sell electricity according to the benchmark electricity price of local coal-fired desulfurization units. (Electricity prices vary slightly from place to place).

5. Calculation of return on investment.

Taking the three types of areas in Hunan as an example, the installation of a 5kw family power station will be based on the market **, with an investment of about 40,000 yuan. Hunan can generally generate 5500kw h a year, according to 50% for self-use, 50% sold to the State Grid to calculate

Subsidy income: 5500* (RMB.)

Electricity cost savings: 5500 * 50% * electricity bill) = 1617 yuan.

Income from electricity sales: 5500*50%*RMB.

To sum up, the income of a year: 3685 + 1617 + yuan.

It takes more than 6 years to pay back, and the average operating time of photovoltaic power plants is 25 years, which is equal to the net income of the next 19 years.

If there is the following load in a family, the electricity consumption is 400 kWh per month, and the geographical location is sunny, then it can be recommended;

Two air conditioners (one upright and one hanging), two laptops, two TVs, two refrigerators, one set of induction cooker, one set of water dispenser, one washing machine, and several electric lights;

usSUVPR ** DeskAccording to the situation of the landlord, two plans can be given:

SVPR Scheme 1Off-grid solar power system, the full set of supporting equipment is probably inYuan. The amount of electricity generated is indegrees for a month, an average of one dayIf you feel that the power generation of 3kw is not enough, you can increase solar panels and batteries according to the electricity consumption, so that the cost is relatively much cheaper, and you can also buy it directly5kwpower generation system.

SVPR Scheme 2The use of grid-connected solar power generation system, this needs to be connected to the mains, can generate electricity during the day for their own use, can be sold online, in addition to the national power generation subsidy, two kinds of income, which is also equal to free electricity, and there is money to make. Depending on the landlord's electricity consumption, we recommend using grid-connected power generation3kw-5kwof, the full set of configurations** is probably in17,000-28,000 yuan

The amount of electricity generated is indegrees for a month, an average of one daydegree, if the electrical appliances are used less during the day and more at night, such an option is low cost, high income, and more cost-effective.

Lifespan: Our on-grid and off-grid solar power generation systems are all produced by ourselves, and they are inverted control all-in-one machines, intelligent automatic conversion of power consumption mode, and generator service lifeyears, but now it is also usefulIt is still used very well for more than a year, but the power generation will not be as large as it was at the beginning. The design life of the solar panel is:years, lightning protection, storm prevention, rain resistance.

The design life of lead-acid batteries is:years, no need to maintain the battery. Other supporting equipment is also developed and produced by itself, and the quality is leveraged.

In the end, it is necessary to choose according to the actual needs of users and the environmental resources in which they are located, depending on whether you choose to use all solar energy or complement the mains, different requirements can choose different configurations, batteries and solar panels can be configured according to the demand for electricity.

The installation of a solar power system depends on three main factors: how much power is required for the system you need to install, whether you need to connect to the grid, whether you want to configure a rechargeable battery pack, and how large the capacity of the battery pack you use. The complete system (including solar panels, inverters, battery packs and their charging devices) is about 18 watts, so if you need to install a 3,000 kilowatt solar power system, it will cost about 5 60,000 yuan. Solar power systems with too little power are generally not suitable, usually a family has 1 refrigerator, a TV, plus a horse air conditioner, turn on 2 or 3 lights, etc., which is about 2000 watts.

In addition, the cost also depends on the technical level of the inverter you need, such as whether your inverter has features such as maximum power tracking, anti-islanding, grid connection, etc.

The power generation of household solar power stations depends on the region and the number of installed panels to determine 10kw is more than 80,000, the general situation is expected to return to the principal in ten years, can be used for 20 years of 10 years is profit, how much profit is uncertain, 10 years should be aged according to the judgment of the income is not large, if the roof is for decoration and installation there is so-called, in order to make money for the purpose of not touching, the subsidy is bluffing, can only earn back a face, I was fooled by relatives to pretend to be a set, the actual calculation of 10 times, only earned a face.

Solar power generation is now generally called photovoltaic power generation. About 80,000 yuan for ordinary houses. The promised life is 20 to 25 years, but many people should know that the general equipment life is only about ten years, that is, your cost may not be recovered, it will break.

If they don't take back the broken things, they will be garbage in your hands. At present, there are many scientific and technological personnel who oppose photovoltaic power generation under the existing technology, because those shelves and cement piers are like dense forests, which is the big garbage dump in the future.

Why is it so expensive to ask for 8-100,000 on our side.

If solar energy is energy-saving and environmentally friendly, and the people save money, they should be vigorously popularized

It depends on whether you are connected to the grid or off-grid, but I recommend connecting to the grid, because the off-grid battery is too expensive to cost-effective, how much is a set of grid-connected depends on the size of your installation wattage, taking 10kw as an example, it is basically 40,000-70,000, if you install 100kw, it is 40-700,000. This is very simple, you can consult me if you need to install it.

First score how you plan to use it. If it only provides lighting, the overall cost is 4000-6000. If you need to use other household appliances, you have to pay tens of thousands.

First of all, if you have mains electricity in your area, you don't think about using solar energy, because it's not cost-effective, and the cost will be higher than using mains.

The battery life is limited, it needs to be replaced once every 3-5 years, and the cost of the battery is not low.

If there is a large electrical appliance, the cost will be very high, not cost-effective, now unless a large grid-connected power station, it can be more cost-effective than using the mains, invest in 10-15 years in advance, and recover the cost, the rest is a cost-effective way.