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Home » Solar Energy » Solar PV vs Coal power generation
Solar PV vs Coal power generation
A pi diagram showing share of various sources (solar, wind, coal, petroleum, gas, bio-gas, others) would provide a clear picture of generation. Along with that a study of available resources at our hand is to be assessed. A proper graphic will help. As for COAL, "Our known extractable reserves will not last beyond 2050 if our coal consumption continues to grow as it has been growing over the past 25 years". Planners of the country need to visualize the impending energy shortage, may be in a decade. Energy shortage will create chaos in society. It seems the government is not serious about power generation. They should have moved to RE in a larger way. Noting the stupendous solar power free of cost we should have augment solar generation with earnest efforts. From the slow progress, it seems government does not wish to enhance solar generation. India should frame a solar policy which would encourage investors. We can learn the success stories from around the world. Japan is the latest entrant. They crossed 10 GW in last August. Why do we stand reluctant to Feed in Tariff? Large scale generation can be accomplished through FIT.
It may appear impossible to overtake coal in ten years. At the same time we have to retain some coal for future generations. Think of an India without any coal reserve. DISASTROUS!! Considering the severe energy crisis waiting ahead India has to move faster. Look at Japan. They shut down 14 nuclear stations at one stroke and decided to increase solar generation to meet the shortage. The road map they prepared to accomplish this target visualizes a period of three years. Whether it is attained is another question. At the moment 15 GW of solar projects are in various stages of erection in Japan. India and every state has to wake up and see the ground realities. All professionals and intelligentsia are to come out open to EDUCATE the political leaders about the impending power crisis.
a). ONE Mw Solar PV load the grid around 16,00,000 kwh / year = 16,00,000/320 days = 5000 kwh (i.e ONLY 5000 units/day or a maximum 6200 units/day during summer peak, if considered based on a high generation scenario). This total addition is only from 6.30 am till 5.30 pm, but, high amount of energy is added in 2 to 4 hours period (INFIRM Energy).
Therefore, creating or Promoting the Solar Park(s) and a dedicated high amount of substation capacity over 50 MW for a Solar PV park, will be a very high burden on the State Government. Let us learn from the costs vis-a-vis benefits and T and D losses of high cost solar PV from Charanka etc. Thus, i strongly propose and advocate Decentralized Energy Generation as it costs less to the Government and also the Common Man and also makes each Taluka to get developed, where there is feasiblity of generating at least 1.5 MU/MW/Year.
Any existing substation (with or without strengthening with very little costs) in a Taluka will easily accept the evacuation load due to 10 to 15 MW solar PV project (i.e 50,000 kwh to 75,000 kwh per day) and use in that location, thus, ENERGY SECURITY FOR EACH TALUKA / near by Villages, thus, power cut in the day can be reduced and Irrigation + Industry activities can be improved due to Decentralized Energy Generation with less infrastructure costs to the Government. Thus, overall and inclusive growth of each taluka.
b). The Decentralized Energy Generation will also help us in adding a ONE MW Biomass power plant, which needs 8000 MT biomass per year / MW, which can be made available in many taluka places, thus, it will add an additional kwh i.e 60,00,000 kwh/MW of Biomass / year = 60,00,000 / 320 = 18,750 kwh/day/ MW in each taluka. This is FIRM energy and always the GRID will be loaded, thus, the grid management will be much smoother both technically and commercially. The Hybrid mix will further enhance the grid stability with reduced T and D losses as this amount of power can be used locally too.
Any existing substation with little spending on strengthening can Hybridize Solar PV + Biomass, thus, a FIRM energy scene with very less investment on substation infrastructure is very easily feasible, while allowing many resources of Renewable Energy can be harnessed with a technical mind set and feasibility to reduce the cost of evacuation to the Government / Common Man.
Thus, Decentralized Energy Generation is the best way. If a solar Park, then, we can NOT hybridize, thus, government will end up losing lot of money for few investors gains (read as Accelerated Depreciation beneficiaries, no tax collection to the government + additional spend on Substation by the government?), but, with a HUGE loss of Capacity Addition through other forms of Energy Generation.
The Mini grids (through off grid routes) shall be developed in the remote hamlets with the same pole arrangements what we have in cities, so, that a decade down, when, we can extend the grid in that area, can easily happen at low cost while ensuring the safety for the human beings, animals and the total environment with good HSE as per IS:14000 etc.
c). Wind Energy with Solar PV can also be HYBRIDISED, thus, Decentralized Energy Generation model with a project per taluka is the most economical way. Hydro power plant area can be best utilized with the land to mount Solar PV plants and use the existing substation with cost advantage on hybridisation. PLUS, the vegetation in the area can use the wood rejects from branches of tree, to accommodate a half MW or One MW Biomass Power project, thus, the policy shall address the great ADVANTAGES of HYBRIDISATION and KREDL shall constitute a team to make a detailed study on the Hybridisation per taluka with the existing RE plants or new project opportunities, thus, we can attract both Domestic and INTERNATIONAL INVESTORS with low cost debt with interest subsidy to create new generation Entrepreneurs.
The Solar PARKS are only in remote area growth (plus the cloud movement risks and additional costs too due to large area for PV in one location - read the Mojavrero desert area or dry land area project problems in USA) with high UPFRONT costs to the Government and will not help to hybridise with other resources of RE, hence, we need to have good vision for Karnataka unlike Gujarat or Rajasthan, where wasteland exist and the scope of Hybridisation is less when compared to Karnataka. Hence, this input is based on these Technical issues, advantages and Challenges and we should not simply copy the un-viable project schemes practiced in other parts of India or USA desert area.
Through our policy making, We must burden less to the Government (common man) and use such money to pay the Interest Subsidy to create large number of entrepreneurs to offer low cost hybrid Renewable Energy and to reduce dependence on Coal, Fossil fuels and hence less Current Account Deficit (CAD) with a judicious utilisation of Subsidies with necessary policy making and accountability to disburse such subsidy only against performance.
The above was the suggestion sent to a State Government to amend the Renewable Energy Policy; Here is how Solar PV with hybridisation costs less to the Common man, when compared to Coal / Nuclear or other based load plants.
a). 10 MW solar PV + 1 MW Biomass = (10mw x 16,00,000 kwh x rs.6/kwh) + (1 x 60,00,000 x rs.5/kwh) / (160,00,000+60,00,000) = Rs.5.72/kwh.
i.e 1 MW Biomass plant (6 MU) in a taluka is equivalent to 4 MW solar PV plant. This requires investment of 4 x 8 + 1 x 6 = Rs.38 Cr. (total kwh addition = 6 + 1.5 x 4 = 12 MU)
b). If a MSW (Municipal Solid Waste) project with 6 MW with 600 TPD capacity at rs. 140 cr investment is thought per district, it will add 50 MU !! PLUS, it will remove the EPIDEMICS like what we saw in SURAT, which made Gujarat and INDIA to spend over 1000s of Crore rupees !!
The MSW projects MUST be owned by Municipal Parties as the EPIDEMIC control during the transport of garbage etc shall be the Government responsibility. Many private players who are putting up MSW power projects are charging huge tipping fee which costs rs.3/kwh, hence, the MSW kwh rate is very high and we must bring down with inter government subsidies for health and sanitation,which is its main objective. Power generation is secondary with MSW. This is FIRM energy.
Wind energy adds only 2.2 MU/mw/year and is INFIRM Energy. Hence, calls for Hybridisation at each Taluka level.
Thus, i suggested the Karnataka State government, being a technical committee member to create a team to study on the Solar PV, Biomass and MSW, Wind power generation capacity in EACH TALUKA, so that at least EACH TALUKA has ONE PROJECT to have electricity in their Taluka.
Don't compare only Coal and Solar, rather compare Coal and all other Renewable Energy with INFIRM and FIRM energy generation mix i.e a very good Hybrid Energy scene for overall growth / inclusive growth of each Taluka / rural INDIA.
We can not copy Germany or USA, as we have different challenges and we need to adapt to INDIA and create large number of Entrepreneurs and not few Corporate companies, who do not want to pay taxes, who must be shown the way to live on INDIA FIRST POLICY guidelines.
It may appear impossible to overtake coal in ten years. At the same time we have to retain some coal for future generations. Think of an India without any coal reserve. DISASTROUS!! Considering the severe energy crisis waiting ahead India has to move faster. Look at Japan. They shut down 14 nuclear stations at one stroke and decided to increase solar generation to meet the shortage. The road map they prepared to accomplish this target visualizes a period of three years. Whether it is attained is another question. At the moment 15 GW of solar projects are in various stages of erection in Japan. India and every state has to wake up and see the ground realities. All professionals and intelligentsia are to come out open to EDUCATE the political leaders about the impending power crisis.
a). ONE Mw Solar PV load the grid around 16,00,000 kwh / year = 16,00,000/320 days = 5000 kwh (i.e ONLY 5000 units/day or a maximum 6200 units/day during summer peak, if considered based on a high generation scenario). This total addition is only from 6.30 am till 5.30 pm, but, high amount of energy is added in 2 to 4 hours period (INFIRM Energy).
Therefore, creating or Promoting the Solar Park(s) and a dedicated high amount of substation capacity over 50 MW for a Solar PV park, will be a very high burden on the State Government. Let us learn from the costs vis-a-vis benefits and T and D losses of high cost solar PV from Charanka etc. Thus, i strongly propose and advocate Decentralized Energy Generation as it costs less to the Government and also the Common Man and also makes each Taluka to get developed, where there is feasiblity of generating at least 1.5 MU/MW/Year.
Any existing substation (with or without strengthening with very little costs) in a Taluka will easily accept the evacuation load due to 10 to 15 MW solar PV project (i.e 50,000 kwh to 75,000 kwh per day) and use in that location, thus, ENERGY SECURITY FOR EACH TALUKA / near by Villages, thus, power cut in the day can be reduced and Irrigation + Industry activities can be improved due to Decentralized Energy Generation with less infrastructure costs to the Government. Thus, overall and inclusive growth of each taluka.
b). The Decentralized Energy Generation will also help us in adding a ONE MW Biomass power plant, which needs 8000 MT biomass per year / MW, which can be made available in many taluka places, thus, it will add an additional kwh i.e 60,00,000 kwh/MW of Biomass / year = 60,00,000 / 320 = 18,750 kwh/day/ MW in each taluka. This is FIRM energy and always the GRID will be loaded, thus, the grid management will be much smoother both technically and commercially. The Hybrid mix will further enhance the grid stability with reduced T and D losses as this amount of power can be used locally too.
Any existing substation with little spending on strengthening can Hybridize Solar PV + Biomass, thus, a FIRM energy scene with very less investment on substation infrastructure is very easily feasible, while allowing many resources of Renewable Energy can be harnessed with a technical mind set and feasibility to reduce the cost of evacuation to the Government / Common Man.
Thus, Decentralized Energy Generation is the best way. If a solar Park, then, we can NOT hybridize, thus, government will end up losing lot of money for few investors gains (read as Accelerated Depreciation beneficiaries, no tax collection to the government + additional spend on Substation by the government?), but, with a HUGE loss of Capacity Addition through other forms of Energy Generation.
The Mini grids (through off grid routes) shall be developed in the remote hamlets with the same pole arrangements what we have in cities, so, that a decade down, when, we can extend the grid in that area, can easily happen at low cost while ensuring the safety for the human beings, animals and the total environment with good HSE as per IS:14000 etc.
c). Wind Energy with Solar PV can also be HYBRIDISED, thus, Decentralized Energy Generation model with a project per taluka is the most economical way. Hydro power plant area can be best utilized with the land to mount Solar PV plants and use the existing substation with cost advantage on hybridisation. PLUS, the vegetation in the area can use the wood rejects from branches of tree, to accommodate a half MW or One MW Biomass Power project, thus, the policy shall address the great ADVANTAGES of HYBRIDISATION and KREDL shall constitute a team to make a detailed study on the Hybridisation per taluka with the existing RE plants or new project opportunities, thus, we can attract both Domestic and INTERNATIONAL INVESTORS with low cost debt with interest subsidy to create new generation Entrepreneurs.
The Solar PARKS are only in remote area growth (plus the cloud movement risks and additional costs too due to large area for PV in one location - read the Mojavrero desert area or dry land area project problems in USA) with high UPFRONT costs to the Government and will not help to hybridise with other resources of RE, hence, we need to have good vision for Karnataka unlike Gujarat or Rajasthan, where wasteland exist and the scope of Hybridisation is less when compared to Karnataka. Hence, this input is based on these Technical issues, advantages and Challenges and we should not simply copy the un-viable project schemes practiced in other parts of India or USA desert area.
Through our policy making, We must burden less to the Government (common man) and use such money to pay the Interest Subsidy to create large number of entrepreneurs to offer low cost hybrid Renewable Energy and to reduce dependence on Coal, Fossil fuels and hence less Current Account Deficit (CAD) with a judicious utilisation of Subsidies with necessary policy making and accountability to disburse such subsidy only against performance.
The above was the suggestion sent to a State Government to amend the Renewable Energy Policy; Here is how Solar PV with hybridisation costs less to the Common man, when compared to Coal / Nuclear or other based load plants.
a). 10 MW solar PV + 1 MW Biomass = (10mw x 16,00,000 kwh x rs.6/kwh) + (1 x 60,00,000 x rs.5/kwh) / (160,00,000+60,00,000) = Rs.5.72/kwh.
i.e 1 MW Biomass plant (6 MU) in a taluka is equivalent to 4 MW solar PV plant. This requires investment of 4 x 8 + 1 x 6 = Rs.38 Cr. (total kwh addition = 6 + 1.5 x 4 = 12 MU)
b). If a MSW (Municipal Solid Waste) project with 6 MW with 600 TPD capacity at rs. 140 cr investment is thought per district, it will add 50 MU !! PLUS, it will remove the EPIDEMICS like what we saw in SURAT, which made Gujarat and INDIA to spend over 1000s of Crore rupees !!
The MSW projects MUST be owned by Municipal Parties as the EPIDEMIC control during the transport of garbage etc shall be the Government responsibility. Many private players who are putting up MSW power projects are charging huge tipping fee which costs rs.3/kwh, hence, the MSW kwh rate is very high and we must bring down with inter government subsidies for health and sanitation,which is its main objective. Power generation is secondary with MSW. This is FIRM energy.
Wind energy adds only 2.2 MU/mw/year and is INFIRM Energy. Hence, calls for Hybridisation at each Taluka level.
Thus, i suggested the Karnataka State government, being a technical committee member to create a team to study on the Solar PV, Biomass and MSW, Wind power generation capacity in EACH TALUKA, so that at least EACH TALUKA has ONE PROJECT to have electricity in their Taluka.
Don't compare only Coal and Solar, rather compare Coal and all other Renewable Energy with INFIRM and FIRM energy generation mix i.e a very good Hybrid Energy scene for overall growth / inclusive growth of each Taluka / rural INDIA.
We can not copy Germany or USA, as we have different challenges and we need to adapt to INDIA and create large number of Entrepreneurs and not few Corporate companies, who do not want to pay taxes, who must be shown the way to live on INDIA FIRST POLICY guidelines.
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