Govt bans new solar and wind projects in Pakistan

[Gufi]

Unlike Europe, sun shines almost year round on many parts of Pakistan (for instance Cholistan, Thar, many parts in Balochistan) and wind is always available on the coastline (814 km long). I am not sure why you think solar and wind is not dependable. Having said that, yes we can harvest lots of energy from small hydroelectric power plants/turbines on various streams in KPK. Load shedding is not because the installed capacity (~15,000 MW) is not there, it is because falling apart distribution network that needs to be upgraded ASAP. Otherwise you can keep producing as much energy from multiple sources but the grid wont be able to take up all that load and distribute it.

there are multiple factors when it comes to solar panels sir, the first being its optimal temperature, the temperature at which it is most efficient. Have you noticed the number of solar panels in Pakistan that are bought from countries which do not see temperatures at the levels you see in Pakistan which leads to decreased life. If you do keep panels made for high temperatures they will remain inefficient during most of the year.
Load shedding has issues with transmission but also major issues with supply. The supply is not even near 15000 MW of electricity right now and there has been no real addition to it. There is over hauling of the transmission lines going on at snail's pace.
Yes the KPK mini dams are a correct step but need to be envisioned at a larger level for dams like Basha rather then roads for rural areas going into the billions of rupees instead.
As for distribution more companies like JPGL need to be allowed to reopen and provide electricity. As for those who complain about air pollution, yes we live in a country where industries lie in the middle of cities and there is no real control on any vehicular pollution.

 

[ziaulislam]

Unlike Europe, sun shines almost year round on many parts of Pakistan (for instance Cholistan, Thar, many parts in Balochistan) and wind is always available on the coastline (1046 km long). I am not sure why you think solar and wind is not dependable. Having said that, yes we can harvest lots of energy from small hydroelectric power plants/turbines on various streams in KPK. Load shedding is not because the installed capacity (~15,000 MW) is not there, it is because falling apart distribution network that needs to be upgraded ASAP. Otherwise you can keep producing as much energy from multiple sources but the grid wont be able to take up all that load and distribute it.

100mw wind project produces very little power in December , January. in case of solar we are talking about 12 hours of night especially during load period of 6-10pm.

the problem is greater with solar power.
in any way solar power is expensive in developing countries surprisingly due to cheaper labour that make other coal projects much cheaper!

 

[syedali73]

100mw wind project produces very little power in December , January. in case of solar we are talking about 12 hours of night especially during load period of 6-10pm.

the problem is greater with solar power.
in any way solar power is expensive in developing countries surprisingly due to cheaper labour that make other coal projects much cheaper!

OK, for two month production is not that high but 10 months it is acceptable. As far as 12h night is concerned, it has nothing to do with the load period because the energy generated will be stored in batteries and not enter in the grid right away. Solar is expensive because we have to import the panels but if we could go for a JV with China and produce them locally, the overall cost will decrease significantly. Secondly, I would suggest that instead of connecting all the sources to national grid, we go for power -independent residential and commercial localities.

 

[ziaulislam]

OK, for two month production is not that high but 10 months it is acceptable. As far as 12h night is concerned, it has nothing to do with the load period because the energy generated will be stored in batteries and not enter in the grid right away. Solar is expensive because we have to import the panels but if we could go for a JV with China and produce them locally, the overall cost will decrease significantly. Secondly, I would suggest that instead of connecting all the sources to national grid, we go for power -independent residential and commercial localities.

yes it is an excellent option for for local residents to put it up and sell it to the grid just like in UK/Australia. However, no solar plant has batteries, batteries are too expensive. large scale solar plants simply work when there is sun.
batteries is an expensive option even for home users. e.g a solar 1000w solar pannel life cost is 1 lac (expensive German ones, local/chinese at 60,000) while batteries will cost more than 2 lac over 20 years of solar pannel life(15 k/ 1.5 years.)

so yes it has to do with load generation, during 6-8am and 6-10pm power requirement is 50% than original. for that purpose all of our hydro power plants uses full capacity those that are run of the river like ghazi-brotha use pooling strategy they store water in small pounds to be release in peak hours