In general, high-rise or low-rise buildings in areas generally do not use solar water heaters. First, it is not practical to install solar energy. Many solar sellers are not willing to install it on too high floors. . It’s much more inconvenient to make the same effort. Secondly, high-rise buildings are only suitable for the installation of upper floors, which also has something to do with the developer's prior preparation, because solar energy must be buried in pipelines and cables beforehand. water (for electric heating and instrumentation). is not pre-installed, open wires will be involved and open pipe issues will affect appearance. Third, there are psychological problems of customers. Because many customers have encountered solar water leakage problems, many customers choose solar chaelectric or natural gas water heaters. The people on the top floor will also have grudges! Fourth, of course, there are policy and implementation issues.
①∵P total = 10,000 kilowatts = 10,000 kW = 1×107W, P = 200W,
∴The number of street lights operating normally is: n=
| P total |
| P |
| 1×107W |
| 200W |
②t=2000h,
∴The annual energy production of the generator is: W=PTotal t=10000kW×2000h=2×107kW?h.
③ Photoelectric energy production, a low-carbon model.
So the answer is: 5×104; 2×107; photovoltaic energy production, a low-em modelcarbon issuance.