Reverse Metering + Solar Panels

While informal chat, Dr. Anjum Iqbal sahib gave a good idea regarding energy solution as follows:

The solar panel system can be more useful, if we use 'Reverse Metering' system:



  • Govt. may help people buying solar panels on soft loans.



  • Govt. may recommend/approve solar system specifications to be used.



  • Distribution Companies can launch 'Reverse Metering' system. Excess energy, in the day, at end user premisis may be accepted by respective grid. When end user gets advantage of energy units. This end-user benefit will make the project feasible. End user will try to install more and more solar panel at its premsis and end user will try to maintain the solar panel in a good state to get advantage of free energy.



  • Generation Companies may generate more energy in the night and less in the day. Because more solar energy is available in the day.



  • End user will not need a big battery bank for storage for night use.

Is this workable? What are your comments?
 
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Mojo-jojo

Minister (2k+ posts)
بھائی ہونے کو تو بہت کچھ ہوسکتا ہے لیکن ہمت اور لگن کہاں سے آئے - ہم لوگوں کو باتیں بنانے سے ہی فرصت نہیں
میں نے پچھلے سال سولر انرجی سے متعلق بہت سی چیزیں یہاں پوسٹ کیں لیکن اندازہ ہوا کہ پاکستان میں سولر انرجی سے متعلق معلومات کی بڑی کمی ہے اور ایک عام تاثر یہ ہے کہ یہ بڑی مہنگی ہے اور اس کو اسٹور کرنا ممکن نہیں - ایک عام صارف کیلئے اس کو انورٹر کے زریعے اسٹور کرنا مشکل نہیں اور اب سولر پینلز کی قیمتیں پہلے کے مقبلے میں بہت کم ہیں - شروع کی لاگت زیادہ محسوس ہوسکتی ہے لیکن پھر کوئی بل نہیں دینا کوئی پٹرول ڈیزل یا گیس کا خرچ نہیں - اگر اس کا ہر گھر میں جزوی استعمال بھی ہو تو بجلی کی کافی بچت ہوسکتی ہے اور لوڈشیڈنگ کے عذاب کو کم کرنے میں مدد مل سکتی ہے
 

Mojo-jojo

Minister (2k+ posts)
[h=1]5 common myths about solar energy for the home[/h]


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Provided





May 11, 2013 12:00 am • Michelle Krueger Times Correspondent


Solar panels have come along way in recent years. Just ask renewable energy expert Kevin Moore, president of Midwest Wind and Solar.
“The concept of solar power has been around for many years,” he said. “But until recently, its reach in the US has been limited to mainly those leading the environmental movement. Now, as better methods for capturing and converting the sun’s rays into usable energy have been developed, it’s becoming more widely adopted.”
In pursuit of the extraordinarily green goal of entirely converting to renewable energy sources by the year 2050, Germany is the world leader in solar energy. Spain, the leader as of 2008, is now second, followed closely by Italy and Japan.
The US is in fifth place, with the market for residential solar panels showing strong growth through the recession. California leads all states with about 60 percent of the country’s total solar energy installations.
Here in the Midwest, Moore is making some headway. Currently, the board in his office is loaded with solar energy installation projects throughout the company’s designated service area of Indiana, Illinois and the lower peninsula of Michigan. However, even with a diverse mix of residential and commercial projects in the works, Moore believes many Americans still struggle with separating the facts from common misconceptions when it comes to solar energy.
So, in order to better understand how solar energy can be a viable way to green your home and save energy, Moore provides the facts to debunk theses top 5 myths:
Myth 1: You have to live in a very sunny climate to get results. Everybody thinks the Midwest has too many dark, cloudy days to make solar energy viable. However, modern solar panels are designed to work in a wide variety of climates and get great results. Many people are also surprised to learn that our area actually out-produces Florida four months of the year (see chart).
Plus, Germany, the world leader that’s most definitely not known for its blazing sunlight, added a record number of solar panels last year.
Myth 2: They are expensive. Keep in mind that solar isn’t necessarily an all or nothing proposition. You can start off with just a few panels. Then, consider the fact that the saturation of solar panel manufacturers has brought the price down around $4.40 per kW from $5.50 in 2008.
Using the example of a typical residential installation of 12 panels, the cost would be approximately $12,672 (the current 30% federal tax credit, which is not capped, reduces that investment by $3,801 - solar panels and systems may also be eligible for local/state rebates and other savings programs). Producing an estimated 3,500 kWh per year, this system would cover about four months worth of electricity for the average American home (assuming 900 kWh per month consumption). The initial net investment of $8,871 would be recouped in 5-7 years, dependent upon actual production and consumption. With the average life of today’s solar panels guaranteed for 25 years, that means you can potentially be generating a profit for nearly two decades.
“Of course, the more you install, the bigger the pay back and lower the cost to install,” Moore said. “In my opinion, US production is poised for the next solar boom, and prices will remain fairly stable in the coming years, so there’s no reason to wait. You can get started now and add to your system in the future.”
As traditional sources of electricity such as fossil fuels continue to rise in price the need for solar energy will only grow. Plus, with the benefit of paying you back, solar panels will increasingly become important to home buyers, so installing panels and being able to demonstrate savings should contribute to resale value down the line.
Myth 3: They require a great deal of maintenance. Actually, nothing could be farther from the truth, according to Moore.
“If you clean the dust or dirt off twice a year, it’s been shown to help production by about 2 percent,” he said. “But, there are no moving parts to maintain, and snow is actually self clearing.”
Myth 4: You need batteries. Again, no.
“With NIPSCO’s net metering or feed-in tariff, you are tied to the grid,” Moore said. “I like to refer to it as the virtual battery. Your solar system is generating energy all day while you are away at work - your credits go on the grid. Then, when you return home in the evening, it’s dark - your credits return home.
Myth 5: Hail will damage solar panels like roofs. While they are made of tempered glass, solar panels are UL Laboratories rated to withstand a 1” hail stone while mounted flat (or perpendicular to the hail stone). However, since solar panels are not normally installed flat but on an angle, they can resist up to 2” hail stones because of the deflection angle.
One final note, in the last few years there have been great improvements in the size, shape, thinness and overall appeal of solar panels. Today’s panels are designed to work better with modern rooflines, are less obtrusive and can integrate with existing home systems.

http://www.nwitimes.com/lifestyles/...cle_cb8e99e6-b29b-53e9-89e2-10ae4659ea52.html
 

tahirmajid

Chief Minister (5k+ posts)
Solar system kuch sasta hua hay magar hamarey log be-emaan hain wo ye sochatey hain keh yehi din hain kamaney kay. is liaey wo kisi cheez ko sasta nahi datey logo ko. Phir 50000/100000 ka chhota system lagana ghareeb aadmi kay bas ki baat nahi hay. Or itna chhota system laganey se jo kuch hasil hota hay us ki bijaey aam aadmi generator or ups ko tarjeeh deta hay jab-keh wo long term mein mehnga parta hay.Aaj kal garmi zoro pe hay or load sheding bhi urooj pe hay to in dino to koi bhi cheez, generator UPS ya solar system kuch bhi sasta nahi miley ga paksitan mein. Ham aik dosrey ki mushkilo ko nahi dakhtey ham to aik dosrey ki botian noch kay khana chahtey hain sirf apna pait bharney kay liaey. Ham log aik dosrey ko loot rahey hain or har koi ye samjh raha hay keh sirf wahi chalaak hay or dosro ko loot raha hay. Jab-keh asal mein aik aadmi yehaan loot raha hay to dosri jagha wahi lut raha hay
 

coolhaider

Minister (2k+ posts)
600 watt takreeban 80 hazar main parta hai takreeban.... aur jitni mehngi bijli ho gaye hai
6 laakh laga ker pura ghr he solar per kerwa lena chahiye
 
Yes it is very much possible, even i am writing a research paper about it...
but the problem is with the conventional girds that we have, they do not support it. We need smart grids, which is a hot topic in the electrical engineering world, a lot of investment has been put into it these days. Overhauling of current grids into smart grids require investment that even USA can not afford it at once. so for now we can only speculate it :)
 
There are thousands ways to generate electricity and end this misery but the problem is money, that we don't have. we need an optimum solution that our economy can support...
 

Acme Pakistan

Politcal Worker (100+ posts)
its a good idea .... only if it is legal in pakistan which i dont think it is .... unless government allows domestic users to produces their own energy ....
 
Various Comments Received at other forums [PakGrid] are as follows:


Summary of Comments:
--------------------------------

Ahmed Antara Siddique:


  • We have already submitted a proposal to Govt of Pakistan from REAP
    (Renewable and Alternate Energy Association) platform.
  • I am trying hard to convince the govt including AEDB, NEPRA.
  • Its a very good idea if our policy makers and govt realize its importance.

Musstanser Tinauli:
Train People towards energy conservation
and educate about Green energy production
Muhammad Asif, New Zealand:

I wish that Reverse Metering idea move forward.

Habib Rehman:

System already in place in Australia.
It is workable solution that solves energy crisis in days.

Naveed Arshad:
System already implemented in many countries.
Problem is not the technology but the willingness of the Government.
Best part is the environmental friendliness.
Nowhere in energy policy we see environmental friendliness as a criteria for measuring a technology.
Mubbashir:
The proposal is implementable giving way to a free market where everyone can PRODUCE electricity.
Waqqas Akhtar:
EU have enacted "feed-in tariff" laws that require electric utility companies to make payments to solar-power producers, be they commercial power plants or private homes
Such tariffs have turned Germany, France and Spain into solar power leaders.
To encourage people to buy and install solar panels, Germany buys solar-produced energy at a fixed price guaranteed to make a profit.

Khawaja Hammad:
Even Govt. takes initiative on first two points it can make a huge difference.
Reverse Metering can add lot of administrative and operational hassles. Although it is doable but not in the current scenario.
Adnan Ashraf:
'Grid-Tied Electrical System' is used in many countries:
http://en.wikipedia.org/wiki/Grid-t...at_legally_allow_grid-tied_electrical_systems
No battery banks are required for Grid-Tied systems, this system really pays back.
But, Grid-Tied or Grid-Interactive systems don't work in the case of power outage.

Noman:
Its already implemented in Australia.
http://www.energymatters.com.au/renewable-energy/solar-power/grid-connected-systems/

Asif Kidwai:

Pakistan needs to take the quality of its grid into account when planning distributed generation (and reverse metering).
Mohammad Asad: from Buraq Integrated Solutions
Pakistan Engineering Council (PEC) has already implemented On-Grid Solar Power System. http://www.pec.org.pk/JICA_projBrief.aspx
The new energy meters which are currently being installed are supporting Reverse-Metering.
Ali Mansoor Khawaja:
I think it is a great idea. But instead of Govt. motivate public.
End up not having to deal with wapda at all.