Solar street lamps investment cost of tender documents

Users often ask: solar power in rural households or use farms, need how many money? This is a very vague concept. According to our normal life and the economic level of rural households, electrical equipment including lighting, TV, electric cooker, electric

users often ask: or farms in the countryside family to use solar energy to spend how many money? This is a very vague concept. According to the normal life and economic level of rural households, electrical appliances mainly include lighting, TV, electric rice cooker, basic household appliances such as refrigerators, electric fan. On a hot summer, air is a great big, farmers tend to save a little. In the winter, also is the large power consumption of heater working time is relatively long. According to a family of about 3000 watts of electricity capacity calculation, rural households, the average power consumption about 10 KWH, electricity standard for each degree 0. 5 - 0. 6 yuan, the monthly electricity bills in 200 yuan. For grid infrastructure is relatively perfect in rural areas, if the power is not much, at ordinary times power for life, recommend that users do not have to rush to utilize solar energy. Because both photovoltaic (pv) grid power station and off-grid system ( With the commercial power complementary) , the cost of solar power can be compared with coal-fired power or hydropower price. In a remote mountain, plateau, pastoral areas, islands, gobi, since there is no public power grid environment, long-distance transmission cost is high, the cost of diesel generator can also be difficult to be borne by the user, so solar power is a kind of worth choosing way of energy supply. Case 1: rural household solar off-grid power generation system ( Mains complementary) ( Table 1) Rural household solar off-grid power generation system ( Mains complementary) Configuration and the fixed reference: project units number 280 w solar panels 36 v segment 10 lightning protection box 2 set of photovoltaic (pv) into 1 set of photovoltaic inverter DC out 1 6 kva unit 1 48 v lead-acid battery 12 v 200 ah only 4 pv stents with galvanized cold-rolled steel casing photovoltaic battery cabinet double iron gate 1 copper wire cable double core 4 gb party m 100 total price is 28000 yuan, No tax, freight and installation) Note: the design capacity of 2800 megawatts, maximum power can reach 8 degrees every day, the standby power is about 6 degrees, actual load power inverter is 4800 watts. 。 Case 2: small farm photovoltaic off-grid power generation system in a small farm, for example, households, including lighting, television, and rice cooker, electricity production including small grinder, mixer, blowers and pumps, such as perceptual load, total power for 10 kw. Using Jin Sanke (shenzhen) co. , LTD. SAKO educational area; Tandem solar off-grid power generation system, three-phase ac 380 v, 50 hz output, basic can satisfy the farm daily production demand. The scheme using photovoltaic modules array power generation, using high-power MPPT photovoltaic controller to charge and discharge management, directly into an alternating current load is used, at the same time for battery charging. Equipped with three-phase high-power inverter power frequency ( Maximum power 100 kva) , when the lack of photovoltaic (pv), by the battery inverter output, meet the needs of mechanical and electrical equipment. ( Table 2] Small farm solar off-grid power generation system configuration and quotation reference: project units number 280 w solar panels 36 v segment 36 lightning protection box 3 pv into 1 group made 1 pv charge controller 360 v 100 DC 1 380 v, 30 kva three-phase inverter unit lead-acid battery only 12 v 150 ah 1 set of 380 v ac power distribution ark 100 Ann photovoltaic stents with galvanized cold-rolled steel casing battery cabinet double iron gate 1 pv cable double core gb 10 square copper wire meters 100 total price is 98000 yuan, No tax, freight and installation) Note: the design capacity of 10 kw, 25 kw of electricity a day, can store up to 40 kw power. The actual load power is 24 kw inverter.