"Solar Energy is a clean and free natural resource, available to the mankind. The effective use of this un-tapped energy resource has huge potential to develop every corner of the globe, and establish a peaceful, safe and pleasant world for our future generations. It is our responsibility to start this onerous but honorable task"
Thursday, January 27, 2011
Friday, January 21, 2011
PV Insights: All Solar PV Price
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Contract Prices are updated on the 6th working day of the month. |
Solar Panels - $1.30/W Solar Modules - Free Solar Panel Prices
Cheapest Solar Panels! Prices on Jan 2010
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Thursday, January 20, 2011
Nitride solar cell achieves peak EQE of 72%
Figure 1: ASTM G173-03 AM1.5G reference spectrum. Shading represents effective response of UCSB device (370–410nm).
Figure 2: Schematic of UCSB InGaN/GaN solar cellFigure 3: Measured absorption (solid), average (solid with error bars), maximum and minimum (dashed curves) EQE curves for (a) smoother and (b) rough samples. Average EQE and its standard deviation (error bars) were determined from measurements of 12 devices in the same area of the sample where the absorption was measured.
Device | Voc | Jsc | FF | Pmax | EQEpeak | IQEpeak |
V | mA/cm2 | % | mW/cm2 | % | % | |
Smooth | 1.83 | 0.83 | 76.6 | 1.16 | 56 | 97 |
Rough | 1.89 | 1.06 | 78.6 | 1.57 | 72 | 93 |
Table 1: Solar cell performance metrics.
Wednesday, January 19, 2011
Thursday, January 13, 2011
Tuesday, January 11, 2011
Monday, January 10, 2011
Economics of Efficiency in PV Systems | d-bits
http://d-bits.com/efficiency-economics/
Please also see
Understanding Thin Film Prices: A Dummy’s Guide
Yes, they have to be cheaper than crystalline modules. But by how much?
http://www.greentechmedia.com/articles/read/what-governs-thin-film-module-prices/
Source: National Renewable Energy Laboratory (NREL), GTM Research
Source: juwi Solar, GTM Research
Sunday, January 9, 2011
Friday, January 7, 2011
supply_report_2010_webinarfinal.pdf (application/pdf Object)
PV Technology, Production and Cost Outlook: 2010 –2015
Thursday, January 6, 2011
Tracking the Sun III The Installed Cost of Photovoltaics in the U.S. from 1998-2009
Tracking the Sun III The Installed Cost of Photovoltaics in the U.S. from 1998-2009
Tuesday, January 4, 2011
Monday, January 3, 2011
Sri Lanka - Electricity Tariff (Jan-Jun 2011)
Sri Lanka Electricity Tariff from 1 st Jan 2011
1st January 2011 to 30th June 2011
approved by the Public Utilities Commission of Sri Lanka
Customer Category and consumption per month | Energy Charge (Rs/kWh) | Fixed Charge (Rs/ month) | Maximum Demand Charge per month (Rs/kVA) |
| Customer Category and the time interval, if applicable | Energy Charge (Rs/kWh) | Fixed Charge (Rs/ month) | Maximum Demand Charge per month (Rs/kVA) |
Domestic (D) |
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| Industry (I) |
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0-30 | 3.00 | 30.00 | - |
| I-1 | 10.50 | 240.00 | - |
31-60 | 4.70 | 60.00 | - |
| I-2 |
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61-90 | 7.50 | 90.00 | - |
| Day | 10.45 | 3,000.00 | 850.00 |
91-120 | 21.00 | 315.00 | - |
| Peak | 13.60 | ||
121-180 | 24.00 | 315.00 | - |
| Off-peak | 7.35 | ||
>180 | 36.00 | 315.00 | - |
| I-3 |
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| Day | 10.25 | 3,000.00 | 750.00 |
Religious (R) |
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| Peak | 13.40 | ||
0-30 | 1.90 | 30.00 | - |
| Off-peak | 7.15 | ||
31-90 | 2.80 | 60.00 | - |
| Hotel (H) |
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91-120 | 6.75 | 180.00 | - |
| H-1 | 19.50 | 240.00 | - |
121-180 | 7.50 | 180.00 | - |
| H-2 |
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>180 | 9.40 | 240.00 | - |
| Day | 13.00 | 3,000.00 | 850.00 |
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| Peak | 16.90 | ||
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| Off-peak | 9.10 | ||
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| H-3 |
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| Day | 12.60 | 3,000.00 | 750.00 |
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| Peak | 16.40 | ||
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| Off-peak | 8.85 | ||
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| General Purpose (GP) |
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| GP -1 | 19.50 | 240.00 | - |
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| GP -2 | 19.40 | 3,000.00 | 850.00 |
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| GP -3 | 19.10 | 3,000.00 | 750.00 |
Notes on tariffs:
1. Eligible Government institutions shall be entitled to a 25% discount on energy charges stated above.
2. Energy charges to Religious premises have been reduced by 25% compared with the present tariffs.
3. The above tariffs do not cause any increase to Domestic customers using up to 120 kWh per month and to Small and Medium Enterprises (SMEs) classified under I-1, H-1 and GP-1.
4. Fuel Adjustment Charge will no longer be applicable to any customer category.
5. “month” means a 30-day billing period.
Notes on Customer Categories and time intervals
6. Codes refer to the tariff codes presently used for billing by the Distribution Licensees.
7. Hotels which presently pay either the Industrial rates or General Purpose rates are unified into a single customer category identified as Hotels.
8. Customers in I-2, I-3, H-2 and H-3 would pay on the basis of mandatory Time of Use (TOU) tariffs. Time intervals applicable shall be as follows.
Interval Description | Interval (hours) |
Day | 05.30 to 18.30 |
Peak | 18.30 to 22.30 |
Off-peak | 22.30 to 05.30 |
The Commission will shortly issue the Tariff Order which would further describe the allowed revenues for the licensees, the road map for tariff reforms and rebalancing, and the customer tariffs.