►What are the benefits of installing solar power generation equipment?
1. The power generation is sold to CLP for profit, and the roof is also turned into a tool for making money.
2. When producing electricity, there is no pollution, no noise and no harm.
3. Solar panels isolate sunlight, which can effectively reduce indoor temperature in summer.
4. Solar panels also have the effect of beautifying the roof.
5. Producing green energy is an act of loving the earth.

►What kind of location is suitable for installing solar power generation equipment?
1. A roof or building site with sufficient sunlight and no shade
2.1kW requires about 3 pings of construction area
3. All village houses
4. The structural strength of the building is sufficient to support the weight of the equipment
5. Where CLP can reach (connected to the grid)

►Will solar power generation equipment produce radiation or things that are harmful to the human body?
Solar power generation equipment only converts the light energy of the sun into electrical energy, and there is no harmful substance or radiation problem in the process.

►Which type of power generation system should I choose?
It is strongly recommended that you use a grid-connected system, and your building will continue to use CLP's electricity and sell all the electricity generated by the solar power system to CLP. After signing a contract with CLP through application, CLP guarantees to purchase electricity from you for 15 years at the purchase price announced in the current year. At present, the average residential electricity consumption is about 1.2 yuan per kilowatt-hour, and according to the CLP announcement, the repurchase price of electricity produced by solar power generation equipment below 10kw is 5 yuan per kilowatt-hour.

►How to get money for selling electricity to CLP?
After the photovoltaic case application process is completed, CLP will regularly go to the equipment and installation site to read the meter, and will send you a notice of electricity repurchase for renewable energy about every two months. CLP will deduct the repurchase amount on the electricity bill for the used electricity The electricity bills are credited to your CLP account or sent by cheque.

►How does a solar power system work?
The solar panel converts sunlight energy into direct current, which is converted into alternating current by an inverter before being sold to CLP, because alternating current is used for circulation in Hong Kong. The electricity produced by the entire system will pass through an independent meter, and the degree of power generation can be known just by looking at the meter.

►Can I install a grid-connected solar power system myself?
Can't. In addition to applying to the competent authority, the installation of the system must also be carried out by qualified electrical contractors or professional suppliers and installation companies in accordance with the current regulations.

►Can a solar power system still generate electricity at night and on cloudy days?
The system needs sunlight to generate electricity, so it doesn't generate electricity at night. On cloudy days, the system still works, but only produces about half the electricity.

►How long does it take to install a solar power system? 
Times construction team has high installation efficiency. For example, a site of about 350 square feet can be completed in about 2 working days. However, because the system installation needs to apply to CLP, the whole process will take about 3 to 4 months to complete. If the site needs to be organized in advance, there is construction that needs to be demolished, or special application procedures are required, the time required will be assessed on a case-by-case basis.

►How much area is needed to install solar power generation equipment? How to calculate the cost?
A 1kW solar power generation facility occupies an area of about 3 tsubo. The price of the whole set of equipment will change due to the cost of solar panels/converters and other equipment, power distribution materials, wages, ease of construction, etc. The installation cost is subject to the quotation after on-site evaluation.
Now the market price of 1KW is about 80,000 to 100,000.

►How many kilowatts of electricity can the system generate per day?
The power generation per equivalent sunshine hour of 1KW is equal to 1 degree. In Hong Kong, the equivalent sunshine hour per day is about 3.5 hours. If your equipment is 10KW, it can generate 35 kWh of electricity per day. If CLP's purchase price of 1 kWh of electricity is 5 yuan, then you have an income of 175 yuan a day.
**Definition of equivalent sunshine hours: the effective irradiation time under the standard conditions of 1KW/m2 conversion of the local insolation, that is, it can reach the sun

    The total number of hours of sunlight in a day when the board is running at full power.

►How to determine the direction and elevation of the solar panel?
Hong Kong is in the northern hemisphere. If the maximum cumulative power generation per day is required, the solar panels should be oriented due south. If the maximum cumulative power generation per year is required, the elevation angle of the solar panel should be the same as the latitude. It stands to reason that the larger the elevation angle, the easier it is for the rain to clean the surface of the solar panel. However, there are typhoons in Hong Kong and strong winds in certain seasons in various regions. The larger the angle, the larger the wind surface, which may cause equipment damage. And the policy also stipulates that the height of the equipment should not exceed 2.5 meters. The conditions of each site are different, and the most suitable planning and design will be made after an investigation and evaluation on the site before construction.

►How to maintain the solar power system?
It is advisable to have your installation contractor perform a system inspection once a year, just to make sure everything is functioning properly. Solar panels usually do not require special maintenance. They only need to be cleaned about once every two months to avoid contamination affecting the power generation performance.