Live data from Hacker News

Pakistan says rooftop solar output to exceed grid demand in some hubs next year

reuters.com

151–160 of 262 posts

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#151

Earlier quoted context omitted.

Solar panels are cheap but batteries are very expensive.

Batteries are cheap in developing world prices, cheap in rich country prices. They continue to become cheaper every year.

EDIT: I meant they're on the expensive side for the developing world, but cheap for rich countries. If you aren't stupid enough to tariff them.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#152

Earlier quoted context omitted.

Shift usage to daytime and rely on battery storage.

Batteries are very expensive.

They're cheap and getting cheaper. Your info is from 2021. Things change quickly in this industry.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#153
post #3

What this shows is solar is increasingly threatening the electric utility business model. Even without net metering, demand destruction will cause the traditional model to stop working.

Most people aren’t interested in being responsible for their own electrical generation. Especially with payback still being on the order of decades

#1 is correct. #2 is quite incorrect.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#154

Earlier quoted context omitted.

> default on it and hand the stranded assets back to creditors I doubt the debt is secured by the power assets. If anything, maybe China can assume ownership of the entire powerplant if Pakistan cannot pay. They have done that many times in Africa. See: "debt-trap diplomacy". Also, it is terrible advice to tell a country to default on external debt. See: Argentina!

Argentina has defaulted nine times in its history. One or two times is not material, based on historical observations. https://en.wikipedia.org/wiki/List_of_sovereign_debt_crises

> Argentina has defaulted nine times in its history

Argentina doesn’t make a habit of hosting its creditors’ troops [1].

[1] http://eng.mod.gov.cn/xb/News_213114/TopStories/16353167.htm...

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#155
post #124

Earlier quoted context omitted.

It appears that the recycled street numbers each appear on different blocks. Street 6, for instance: I've found it twice so far. But they're still distinct, in that one Street 6 is within Block M 3 B, and another is within Block M 7. Which appears to suggest that blocks are more important at identifying an address than a street name is, and if that's the case then that works just fine. And indeed, a distinct address…

That's correct. In Pakistan, typically cities are broken up into housing societies. Each society is broken up into sectors/blocks, which are typically indexed by the alphabet(A, B, C, ...), but occasionally, one will see block M7 or sector B2 etc. In each such sector, each house has a unique numbered address. Some larger societies are first broken up into "phases" and then into sectors/blocks. Street numbers are typi…

I have to disagree.

In Calgary, the streets are numbered and it's super easy to navigate between "16th St NW" and "18th St NW". Certainly easier to understand than "Go from St. Catherine's Street to Peel" in Montreal.

Where they are not numbered, they at least have the name of the community. Edgemont, for example, has no numbered streets but the name usually starts with "Edge", making it clear what part of the city you are going to.

I don't think it is perfect but I have also lived in Tokyo where the system is literally impossible without a GPS because the locations are not as neatly arranged as here.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#156

Imagine being the CCP and you’ve managed to turn your industrial capacity into the world‘s single largest renewable energy source. PV‘s Saudi-Arabia.

There were similar comments on HN. The argument goes that since it takes energy to produce PV panels and wind turbines, China effectively is an energy exporting country. What’s even better is some of the PV and turbines are produced with renewable energy. And unlike oil and gas, which are used only once, PV panels and wind turbines generate power for many years.

The argument also has a geopolitical component: PV panels wear down, and by the time yours have too, the energy infrastructure around you will have shifted towards PVs. I.e. your (country’s) energy will be dependent on China.

That is another aspect of “the Saudia-Arabia of PVs”

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#157
post #142

I would encourage people to go look at satellite view of random "rich" neighbourhoods in Pakistan, and note how many solar panels there are on rooftops. Here is the first one I scrolled to in Lahore [1], and one in Karachi [2] Pakistan's grid prices tripled or more since the start of the Russia-Ukraine war, because the extremely mismanaged and poorly designed electricity system+economy could not handle the energy pri…

According to this interview [1] and a recent Economist podcast blackouts were a huge driver of the decision of those that could afford it to go for solar and batteries. Now the utilities are in a death spiral. Customers disconnect, prices rise, more incentive to go for solar and storage as prices continue to fall while price of unreliable grid energy rises. Chances are this spiral can happen everywhere, not just wher…

In other words poor people are being forced to subsidize luxury beliefs.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#158
post #89

Earlier quoted context omitted.

Balcony solar is even cheaper to build than utility-scale solar.

It's limited to 800W in Germany and 1200W in Utah. It isn't about to replace utility-scale generation anytime soon.

Those limits are just arbitrary regulations. It's easy to install 10x that on a residential roof.

Re: Pakistan says rooftop solar output to exceed grid demand in some hubs next year

#160
post #142

Earlier quoted context omitted.

According to this interview [1] and a recent Economist podcast blackouts were a huge driver of the decision of those that could afford it to go for solar and batteries. Now the utilities are in a death spiral. Customers disconnect, prices rise, more incentive to go for solar and storage as prices continue to fall while price of unreliable grid energy rises. Chances are this spiral can happen everywhere, not just wher…

In other words poor people are being forced to subsidize luxury beliefs.

[deleted]
Post reply on HN