Solar power generation, the power generation per square meter is about 120w, and the cost per square meter is about 1500 yuan. The larger the area, the lower the price.

20 13 photovoltaic industry is under antitrust investigation in Europe and America. Overcapacity led to the closure of a large number of photovoltaic industries in Zhejiang, and the price of solar energy fell. This can be checked online at any time.

It is recommended to buy a solar water heater at the price of 150- 180 yuan, including other expenses such as materials. And we are optimistic about whether there is reliable after-sales service in the local area.

If solar panels are used to generate electricity, it is suggested that the group should invite public bidding on a large scale, mainly because the power transformation and storage equipment are expensive, with the highest conversion rate of 17%-20%, and the efficiency is very low, which is not as good as plant photosynthesis.

At present, the national support policy for clean energy and photovoltaic power generation is that 10kw or above can be connected to the grid for free, but the electricity price recovery is very low and the procedures are cumbersome.

The monthly sales of rooftop photovoltaic power generation is less than 20 thousand yuan, tax-free. According to the national fiscal and taxation policy, the power generator needs to provide sales invoices to the power supply enterprises, and the buyer also needs invoices to offset the costs. However, individual power generation does not have the qualification of industrial and commercial owner, and the procedures for receiving invoices are complicated. More than 20,000 yuan will be taxed by half.

"If you can't get the invoice, it will increase the sales difficulty of power producers, which is not conducive to promotion. The release of State Taxation Administration of The People's Republic of China will reduce the tax burden of power generation households. "

According to State Taxation Administration of The People's Republic of China's document, from July 1 day, 2004, State Grid Corporation issued an invoice for purchasing power products for distributed photovoltaic power generation projects. If the monthly sales of generator power products exceed 20,000, the enterprises affiliated to the State Grid will levy VAT at 50% of the tax payable. The monthly sales below 20,000 yuan can be exempted from VAT.

According to the policy issued by State Taxation Administration of The People's Republic of China last year, from the date of 20 13, 10, 1 to the date of 20 15, 12, 3l, the levy rate is calculated at 3%. Take Takamatsu as an example. If the monthly sales is 30,000, the tax he should pay is 30,000× 3 %× 50% = 450 yuan.

Every time residents generate 1 kwh, the state subsidizes 0.42 yuan; The state buys self-generated electricity that residents can't use up at the price of desulfurized coal, and the price is also 0.42 yuan per kWh. Based on the average installed cost 1 kw of installing and using distributed photovoltaic power generation system, it is about 1 10,000 yuan. If the average daily power generation of 8 kW system is 30 kwh, and the household electricity consumption is 5 kwh per day (not exceeding the first-class electricity price of 0.52 yuan), the investment can be recovered in about 8 years.

According to the same calculation method, it will take 9- 10 years to recover the cost of10 distributed photovoltaic power generation device.

The average cost recovery period of household photovoltaic power plants is between 8- 10 years.

When purchasing solar water heaters, it is suggested that the local climate, installation conditions, economic price and durability should be considered first.

1, local climate: The solar tubes of solar water heaters will not freeze and crack in winter, but many people will find that all but the solar tubes freeze and crack in the actual use process. It is not recommended to stay away from the roof in all cold areas, and it is unlucky to hail in summer. It's really a waste to pick up half a bucket of cold water before taking a shower.

2. Installation conditions: poor water pressure and high floor. It is recommended to wash and sleep when preparing to install a mixture of solar energy and electric heating. Related auxiliary equipment, including booster pump and controller, will force you to spend a lot of innocent money and always find it difficult to ride a donkey.

3. Economic price: In terms of use price, solar energy costs more than 3,000 yuan, electric water heater 1500 yuan costs about 2,000 yuan. Although solar energy doesn't need electricity, experienced friends know that solar energy can't be separated from electricity, so let's not talk about saving electricity. In terms of utilization cost, the price of natural gas pipeline gas is the least, followed by electricity. In terms of comprehensive cost, it costs 65,438 yuan more to buy solar energy, which is equivalent to 3,000 kWh, enough for you to use for several years.

4. Durability: The safe service life of electrical products is 6 years. Solar energy will leak in the later period of use, and the conversion rate will gradually decrease until you know you have to give up.

Solar energy is quite good as a clean energy source in the long run, but due to the limitation of artificial technology, the conversion rate is not as high as that of planting trees directly and boiling water with wood. It is recommended to choose carefully.

After all, the ladder price of electricity, the ladder price of water and the promotion policy of new energy were all voted in the Great Hall of the People. We just didn't know it represented us. Every hearing only goes up by how much, and never goes up or down by how much.

The above is purely imaginary, and if there are similarities, it is purely coincidental.

Despise advertisements, especially the black-hearted advertisements of some enterprises!

Baidu knows that the team is talking about after-sales-God's customer service.