Tamil Nadu - Renewable Energy

[proprashanth]

Originally Posted by natarajan1986

but this one is temporary ,once winds fail again we will be back to power cut,from today itself power cut back to form with punch dialog
"Am back"

Yea, Does that mean RoTN suffered more? Anyone confirm.

[MethodMan]

WAAREE plans 1 MW plant in Tiruppur

Mumbai-based WAAREE Energies Pvt Ltd is planning to set up 1 MW solar power plant in Tiruppur and also has plans to expand its present manufacturing facility in Surat.

WAAREE Energies is part of the Mumbai-based WAAREE Group, which has business interests in solar energy, takes up turnkey solutions and EPC services for grid connected solar farms. The Group has an all India presence, and globally WAAREE Energies Pvt. Ltd. products are exported to more than 65 countries.

[MethodMan]

Vikram Solar to set up three solar power projects in Tamil Nadu

Vikram Solar, one of the largest solar module manufacturers and providers of turnkey solutions in India, will soon set up three solar power projects in Tamil Nadu, according to sources. Plants will be set up at

Madurai (5 MW),
Tuticorin (10 MW) and
Ramanathapuram (5 MW) district.

Proposed plant at Tutocorin is likely to be operational by September this year and other two plants will also be commissioned before October this year.

[skysun]

DC

[Arul Murugan]

Wind energy potential in TN

[Arul Murugan]

Wind energy capacity and power production through years



http://mnre.gov.in/file-manager/User...an,%20TNEB.pdf

Quite old capacity but shows the wind behaviour for various months

[skysun]

Interesting graphs...

[venkyinblr]

Also this year Generation from wind will cross 10000 M.Units

Good to see this ..

[skysun]

Originally Posted by venkyinblr

@Solar Powered Pumps,

People in Delta will definitely try this out ,if the cost is 1 Lakh and govt gives subsidy for the rest..It may be a good idea..

Pump connections waiting for Electric current sanction are waiting for years..They couldnt do proper agriculture due to the long wait period..If this Pump is going to be cost effective for the farmers, many will try to opt this out..

(think a submersible Electric motor will cost 40000 + 10000 on installation ,this one is 1 lakh)..

Solar-powered irrigation pumpset has its limitations, say farmers

Hindu, Trichy edition, 17th May 2013


G. Sathyamoorthi




Chief Minister’s announcement on 8,000 solar IP sets draws praise


Although Chief Minister Jayalalithaa’s announcement on extending 80 per cent subsidy for 2,000 solar-powered pumpsets has elicited hearty approbation from a number of farmers, they have a lurking fear on its efficacy as well.
Mahadhanapuram V. Rajaram, working president of the Cauvery Delta Farmers’ Welfare Association, is sceptical whether such pumpsets would be able to draw water beyond a depth of 50-60 ft (20 metres at the most). Besides, the quantum of water required for irrigation may not be pumped.
This would be quite useful between 10 a.m. and 4 p.m. and the quantum being pumped would gradually decline thereafter. And only if this water were to be stored and used, it would be good for irrigation. “Though the State government would bear 80 per cent (Rs. 4 lakh) of the cost of Rs. 5 lakh, even the rest — Rs. 1 lakh — would be possible only for big farmers. “Hence, it will be ideal if the government first grants this subsidy to big farmers on a trial basis and, if it were to succeed, extend it to the small farmers next year,” he said.
Big farmers would be able to use this for drip irrigation or use PVC pipes to let the water into their farm ponds.
At the same time, he was happy to point out that in Karur district alone 64 farmers handed over drafts to the authorities on Thursday for this scheme and “50 more are ready. However, Agriculture Department officials are reluctant to accept them as it would not be possible to accommodate so many,” he said.
V. Duraimanickam, general secretary, Tamil Nadu unit of the All India Kisan Sabha, while welcoming the scheme, wanted this to be extended to more farmers.
Conceding that it would help big farmers more, he appealed to the Chief Minister to enhance the subsidy amount further so that small farmers could avail its benefits. This would protect farmers from frequent and unscheduled power cuts.
“Our association has been for increasing the use of solar power not only in agriculture but also in various domestic uses,” he added.
Rajachidambaram, State general secretary, Tamilaga Vivasayigal Sangam, described the scheme as a “boon” for farmers of delta while it may not be of much use in traditionally water-starved districts such as Perambalur and Ariyalur. “Only those farmers who are confident of the availability of water in their wells or borewells would opt for the scheme,” he added.
He commended the Chief Minister for designing it in such a way that a number of farmers in the delta region would definitely go in for it because the availability of groundwater in the delta region was better than most other areas in the State. “Hence, even if Mettur dam were to be opened for irrigation only couple of months later than the scheduled date — June 12 — farmers would still be able to commence agricultural operations depending on the groundwater.”He is confident that this could prove extremely beneficial even if there are a couple of spells of rain as the water table in most of the areas would go up.
Most important reason for Chief Minister’s decision, according to him, is that she wanted to protect the foodgrain production in the delta region as otherwise the public distribution system would suffer.

[krishnaswamy]

we have the Capacity given in MW and actuals in MU.what is the Prime load factor for wind energy plants? this will be easy to derive at actual MWs generated.

100 MW plant with 0.5 PLF can give around 425 MU. i e. 1 MW:4 MU ratio (very roughly)

so if the installed capacity is 7055. and if i take it as 0.5 ..3500 MW. so 3500 MW should give atleast 14000 MU. but we got only 3200 MU only.

so even though installed capacity is 7055 MW, actual is less than between 750 to 800 MW to give 3100 MU units?

i.e 1/9 or 1/10 is ratio of installed capacity vs actual one?

[Leo_r]

Press and ordinary people are confused with "Power output" as Capacity and "Energy" consumption. Many times I have found Press reporting that Yesterday 2500MW power was produced. It should be reported that 2500 multiplied by 24 hours energy was produced and consumed. One unit is equal to 1 KW hour.

600 MW Plant means it has capacity to generate 600MW at any given moment

If wind mills produce 2500 MW as average throughout the day, 2500*24*1000= 60,000,000 KWH =60 Million UNITs.

Load Factor is 2500 divided by Total Installed Capacity.

I didn't include the "Power Factor" which depends on the quality of consuming equipment in this. Normally most equipments are designed with pf of around 0.8

[krishnaswamy]

Thanks.
I have also calculated same way only.
100 MW plant with 0.5 PLF can give around 425 MU. i e. 1 MW:4 MU ratio (very roughly)
100*24*365*0.5(PLF)/1000 =438
100 MW gives around 438 MU. am not sure about plf as 0.5 i have reduced 13 MU only.

[krishnaswamy]

Oh..finally doing some tough X std maths...

7055 Total intalled capacity and output of 3200 MU gives the number of
1600 MW Avg and PLF is 0.22

so we can say, TN windmills operate at the efficiency of 22%?

[Arul Murugan]

Your CF calculation is absolutely right.. b/w it is 32MU and not 3200MU.

In simple,

7100MW should produce 170MU per day i.e. 24hrs (7100*1000*24)

We got 32MU i.e. 18.8% of 170MU which is nothing but the CF.

============================================== ========

Another example,

Wind produced 3100MW for 12hrs, 2300MW for 4hrs and 1500MW for 8hrs then power production would be

3100*12*1000 = 37.2MU
2300*4*1000 = 9.2 MU
1500*8*1000 = 12 MU

Total for 24hrs = 58.4 MU...

this is the reason why wind production is fluctuating from 30MU to 70MU for past one week. For next 5 months average production would be around 50MU i.e. on an average 2000MW would be available for the grid.

which is a equal to 25,000 tons coal savings per day for a thermal plant. Carbon emission is simply zero!

TN should have a startegy for alternate renewable energy source for rest 6months..

[krishnaswamy]

Originally Posted by Arul Murugan

Your CF calculation is absolutely right.. b/w it is 32MU and not 3200MU.
.

Thanks for other details.

but, in the data, you have given the column heading clearly shows as "mu" only and table value shows 3200.
also my calculation also works correct for 7100 MW, 3200 MU is output with LF as 22%.

are you sure it is 32 MU or 3200 MU? thanks for the clarification.

[ashwintv84]

60 minutes-Bloom Energy