Monday, July 11, 2011

Australia's solar industry welcomes new carbon tax | PV-Tech

Australia's solar industry welcomes new carbon tax | PV-Tech

The new tax, which will come into effect from July next year, will hit Australia’s top 500 emitters with an AUD$23 per tonne carbon tax.

Saturday, July 9, 2011

Solar power: The living is easy | The Economist

Solar power: The living is easy | The Economist

Britain needs to increase its capacity for electricity generation because all but one of the country’s nuclear facilities, and half of its coal power plants, are due to shut by 2023. Gas is an obvious and affordable short-term fix. But the government has committed to ambitious targets to cut planet-heating emissions by 80% by 2050, compared with 1990 levels. That means using cleaner power; the question is whether solar is the best source.

Wednesday, July 6, 2011

Transparency in Energy Markets - Actual solar power generation | Diigo

Transparency in Energy Markets - Actual solar power generation | Diigo

Original size

Transparency in Energy Markets - Actual solar power generation
http://s3.amazonaws.com/diigo/thumbnail_550/2051541_68389970_3093580.jpg?AWSAccessKeyId=0R7FMW7AXRVCYMAPTPR2&Expires=1310012232&Signature=hclTyisp7GNtQA0erOCB05iJLEE%3D

NASA Surface meteorology and Solar Energy - Available Tables for Sri Lanka

NASA Surface meteorology and Solar Energy - Available Tables


Parameters for Sizing and Pointing of Solar Panels and for Solar Thermal Applications:
Monthly Averaged Insolation Incident On A Horizontal Surface (kWh/m2/day)Lat 7
Lon 80 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average
22-year Average 4.69 5.61 6.07 5.54 5.09 4.70 4.74 4.93 4.99 4.66 4.32 4.28 4.96
Minimum And Maximum Difference From Monthly Averaged Insolation (%)Lat 7
Lon 80 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Minimum -19 -40 -16 -16 -8 -15 -15 -11 -18 -12 -20 -23
Maximum 19 19 13 7 9 15 17 14 18 27 14 21
Parameter Definition
Monthly Averaged Diffuse Radiation Incident On A Horizontal Surface (kWh/m2/day)Lat 7
Lon 80 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average
22-year Average 1.86 1.90 2.02 2.23 2.19 2.15 2.17 2.25 2.26 2.13 1.95 1.84 2.08
Minimum 1.62 1.48 1.74 2.15 2.10 2.04 2.04 2.13 2.09 1.87 1.86 1.64 1.90
Maximum 1.93 2.03 2.23 2.33 2.23 2.16 2.18 2.27 2.28 2.14 1.94 1.85 2.13
22-year Average K 0.50 0.56 0.58 0.52 0.49 0.46 0.46 0.47 0.48 0.46 0.46 0.47 0.49
Minimum K 0.41 0.34 0.49 0.44 0.45 0.39 0.39 0.42 0.39 0.41 0.36 0.36 0.40
Maximum K 0.60 0.67 0.65 0.56 0.53 0.53 0.54 0.54 0.56 0.59 0.52 0.57 0.57
NOTE: Diffuse radiation, direct normal radiation and tilted surface radiation are not calculated when the clearness index (K) is below 0.3 or above 0.8.
Parameter Definition