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Showing posts with label Solar Energy. Show all posts
Showing posts with label Solar Energy. Show all posts

Sunday, December 20, 2015

A VILLAGE IN BIHAR THAT HARNESSED THE SUN POWER / SOLAR ENERGY VILLAGE DHARNAI, JAHANABAD IN BIHAR / EFFORT BY GREENPEACE

A VILLAGE IN BIHAR THAT HARNESSED 

THE SUN POWER / SOLAR ENERGY 

VILLAGE DHARNAI, JAHANABAD IN 

BIHAR / EFFORT BY GREENPEACE



While the country is reeling under a severe power crisis, with the state unable to provide uninterrupted electricity supply even to the national capital, a small village in Bihar has tapped solar power to light up



Thirty-year-old Suresh Manjhi of Mahadalit tola in Dharnai will not have to walk five kilometres to and from the nearest Makhdumpur town every day to charge his mobile phone anymore. His world will not be engulfed in darkness once the sun goes down and neither will he have to depend on kerosene-fuelled earthen lamps as the only source of light once the darkness settles in.
Today, he can light up his home, charge his phone and have a bright street light glowing outside. Why? Because after 30 years of darkness, the lights are on in Dharnai! Located on National Highway 83, Dharnai revenue village, in Makhdumpur block of Jehanabad district in Bihar, declared itself energy-independent on July 20, this year, with the launch of Greenpeace India’s solar-powered smart micro-grid. The electrification project has made the lanes of this non-descript village the hub of community interaction after the sun goes down. Today, this village is the talk of the State. It is the first village in India where all aspects of life are powered by solar energy.
It is unbelievable that even 67 years after independence, a village so close to the State capital, Patna, and a world pilgrimage city, Gaya, was left in complete darkness — until, Dharnai broke free of the cliché and declared itself energy-independent by switching on the sun!
For over 30 years, high-tension electric wires have passed by this village without lighting up a single home. This incredible reality of Dharnai had impacted the dreams and hopes of Dharnai’s youth, who grew up in an era of darkness, often leading to despair. “While India was growing leaps and bounds, we were stuck here for the last 30 years, trying everything in the book to get electricity. We were forced to struggle with kerosene lamps and expensive diesel generators”, said 40-year-old entrepreneur Kamal Kishore who is a resident of the village.
But, today, the dark days are gone. Built within three months and on a test-run since March, the 100 kilowatt micro-grid, launched by Greenpeace with the help of NGOs, BASIX and Centre for Environment and Energy Development, is powering 60 street lights and serving the energy requirements of 450 homes which have 2,400 residents, 50 commercial establishments, two schools, a training centre and a healthcare facility. The system works even after dark and on cloudy days because of the battery bank that stores energy. “It does not feel like we are living in darkness. Today, children are studying well and women are able to cook late in the evening. Villagers are getting many benefits from this venture, including the commercial establishments”, 65-year-old farmer Ashok Kumar Singh, another resident, said.
As I walked through the muddy lanes deep into the village, I saw more happy faces with stories waiting to be shared. There were faces of optimism, of renewed hopes, and of empowerment. Gupendra Das shared his optimism as we waited at the Barabar Halt railway station. “Today, for the first time in ages we are seeing power supply. Now our children can study after dark. I hope with the light, the sun god will bring enlightenment to our homes too.”
Dharnai is a unique example of a community-driven electricity project. For the first time in India, an entire village has been electrified through 100 per cent renewable means, along with the involvement of the village community. The micro-grid has been set up with permissions from the gram sabha, the panchayat and the people of the village. The community has been part of the awareness drive as well as discussions about tariff and the working of the micro-grid. “The tariffs were, in fact, decided by the community itself after mutual understanding and discussions. The community is also part of the village electrification committees that will handle the day-to-day running of the micro-grid”, said Greenpeace coordinator Nagesh Anand.
For just Rs.75 a month, villagers like Suresh Manjhi and Gupendra Das can now light up their homes, charge their phones and have street light glowing outside. These, at such a price, were a distant dream for them even three months back when they either had to depend on kerosene lamps or diesel generators that were burning holes in their pockets and lungs.
The story of the micro-grid project is inspiring. Dharnai’s experience illustrates how, in a country like India, energy access can be achieved without compromising the environment with coal pollution. “The micro-grid intends to be the answer to the intense policy and vision paralysis that India’s energy sector faces today. The towns and villages of Bihar have been deprived of energy for decades now and we feel this is where the micro-grid can be bridge to empowerment. We urge the Bihar Government to follow and replicate this model”, said Naveen Mishra of CEED
Thirty years ago, due to various reasons, Dharnai lost its electricity infrastructure. Since then, the villagers have suffered due to lack of electricity and have been waiting to get electricity back to the village. Kolesar Ravidas of Jhitkoria tola lamented the poor condition of the village and continued political apathy in spite of changes in Government. “The political parties come to our village before the polls and promise empty rhetoric, raising our hopes. But once the elections are over, forget the power supply; the faces of our representatives disappear.” His anger is towards the current Chief Minister, Mr Jitan Ram Manjhi, who hails from Makhdumpur block too. “He is one of our own. When he visited Dharnai after becoming the Chief Minister we pleaded with him to at least light up the streets. But it seems all our cries fell on deaf ear”.
Sunil Kumar, the chairman of the village cooperative society, shared that successive State Governments turned a blind eye towards Dharnai. “We have paid the security deposit and completed the paper-work for reinstalling electricity 10 years back. But, since then we’re running from pillar to post to catch hold of the authorities.”
Bihar has been struggling with energy access for decades. The State faces chronic electricity supply shortages, resulting from inadequate investments in generation and distribution capacity. Acute poverty, paired with villages’ geographic concentration in remote, rural areas, have left much of the population in Bihar without access to electricity. In a nutshell, 82 per cent of the State lacks electricity. That has now changed in Dharnai. “The best part is there are no power-cuts in Dharnai”, said Santan Kumar, a local, who works as an electrician in this project. “Even in Patna, you are never sure if the lights will be on when you are studying or cooking at night. But our electric supply system is dependable, reliable and it is managed by us”, exclaimed Santan with pride.
Lighting up homes in a village like Dharnai means giving women and girls in rural India a chance at education; a chance to live their lives with dignity and respect; and a chance for better health and livelihood. Ranti Devi, a local resident, sounded confident when she said: “We had a lot of problems in the past, but since the lights have been installed in our homes it has been easier for us to cook and for our children to study. We can walk around in the streets at night without any fear”.
Samit Aich, executive director of Greenpeace India, said at the launch of the project: “The coal-fired and nuclear-fired power plants of the country will not be able to reach the Dharnais of the country. Nor will they be able to address global climate concerns and India's commitments towards those concerns. India needs to seriously reconsider its energy strategy and prioritise renewable energy for social and climate justice.”
There is a story here that goes well beyond India. For decades, Dharnai was subjected to apathy. But, today it is self-reliant. People of Dharnai don’t depend on the conventional grid to empower their lives anymore. In a power-deficit country, where thousands of villages are still living in darkness, where the state is unable to provide uninterrupted electricity even to the metros, Dharnai has set a benchmark on how decentralised renewable energy is a workable solution.
When, in the name of development and power generation, ancient forests are being cleared, communities displaced, wildlife disturbed, Dharnai provides a roadmap for sustainable development. The village has shattered all the myths that cynics have been propagating about the supposed non-feasibility of renewable energy. Its solar-powered micro-grid could be a game-changer, a model for bringing clean and reliable energy to millions across the world.




Visit for Amazing ,Must Read Stories, Information, Funny Jokes - http://7joke.blogspot.com 7Joke
संसार की अद्भुत बातों , अच्छी कहानियों प्रेरक प्रसंगों व् मजेदार जोक्स के लिए क्लिक करें...http://7joke.blogspot.com
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Saturday, November 15, 2014

सूरज, वाह वाह ! ऊर्जा का क्या अद्भुत स्रोत है

सूरज, वाह वाह ! ऊर्जा का क्या अद्भुत स्रोत  है

वैकल्पिक ऊर्जा का संसार अद्भुत और निराला है उसमें सौर ऊर्जा नंबर वन पर है ।
भविष्य में दूसरे तारों से भी ऊर्जा लेने  का प्रबंध होने वाला है , वैज्ञानिकों की योजना है की मंगल ग्रह पर सोलर ऊर्जा आधारित रोबोट्स का इस्तेमाल किया जाये , और
उनके ही द्वारा इंसान के रहने लायक प्रबंध किया जाये ।
उसके बाद तमाम मंगल ग्रह के खनिज पदार्थों और दूसरे ग्रहों के खनिज पदार्थों को उपयोग में लाना शुरू किया जाये

समस्त संसार ऊर्जा से चल रहा है , और धीरे धीरे इतना विकास किया जाये की तारों की ऊर्जा का उपभोग कर सकें

तब तक देखते हैं की सौर ऊर्जा का क्या हाल है


सूरज, वाह वाह ! ऊर्जा का क्या अद्भुत स्रोत  है-  जी हाँ यह अभूतपूर्व   किसी और के नहीं बल्कि अब से तकरीबन अस्सी वर्षों पूर्व ही अमरीकी महान अन्वेषक व अद्भुत उद्यमी थॉमस अल्वा एडिसन के थे।सन् 1930 में ही अपने अभिन्न मित्रों व सहयोगियों हेनरी फोर्ड व हार्वे फायरस्टोन से उन्होने यह बात कही थी कि ' मैं तो अपना सारा धन सूरज व सौर-ऊर्जा पर लगा सकता हूँ।
ऊर्जा का क्या अद्भुत स्रोत  है ?


हालाँकि एडिसन  ने जब यह भविष्य के ऊर्जा स्रोत  के रूप में सौर-उर्जा की प्रधानता के प्रति घोषणा की थी ,उसके एक दशक पूर्व ही आइंस्टीन ने फोटोवोल्टेयिक सेल की खोज कर दी थी जिससे की प्रकाशऊर्जा को विद्युतऊर्जा में परिवर्तित किया जा सकता है, परंतु उस समय सौर ऊर्जा के किसी व्यावसायिक उपयोग या इसका बिजली के उत्पादन हेतु हाइड्रोकार्बन स्रोतों के विकल्प के रूप में सोचना दूर की कोडी थी



जहाँ दो दशकों पूर्व हमारी उर्जा-आवश्यकताओं की आपूर्ति  में सौरऊर्जा का योगदान नगण्य,1.5 प्रतिशत से भी कम था,वहीं आज इसका योगदान बढ़कर पाँच प्रतिशत हो गया है।ऊर्जा विश्लेषकों का मानना है कि यदि सौरऊर्जा की वर्तमान उल्लेखनीय वृद्धि जारी रही तो वर्ष 2025 तक विश्व की सभी ऊर्जा आवश्यकताओं के लगभग चौथाई हिस्से की आपूर्ति सौर उर्जा से ही होगी।

सोलर पैनल
 हमारे देश में भी सौर ऊर्जा के अधिकतम वैकल्पिक उपयोग हेतु जवाहरलाल नेहरू सौर अभियान शुरू किया गया है जिसके अंतर्गत 20000 मेगावाट ग्रिडपावर बिजली,2000 मेगावाट ग्रिड के इतर घरेलू उपयोग की बिजली,गरम पानी हेतु 20 मिलियन वर्गमी.सोलरताप पैनल व ग्रामीण क्षेत्रों में प्रकाश हेतु 20 मिलियन वर्गमी. सोलर पैनल लगाने की योजना है।






सोलर हीटर
भविष्य में हमें अपनी अधिकांश दैनिक उर्जा आवश्यकता- जैसे घर में रोशनी,गरम पानी,वातानुकूलन,खाने पकाने हेतु ईंधन,घर व कार्यालय में उपयोग आने वाले इलेक्टॉनिक उपकरणों हेतु बिजली,व्यक्तिगत वाहन इत्यादि, की आपूर्ति हेतु सौरउर्जा पर ही निर्भर रहना होगा। शहरों में बिजली की भारी समस्या को देखते हुये लोग बिजली के गीजर के बजाय सोलर वाटर का अधिकांशत: उपयोग पहले ही करना शुरू कर दिये हैं।इसी तरह बड़े सामूहिक भोजनगृहों,बड़े-बड़े होटलों रेस्तराँ में भी भोजन पकाने ,पानी गरम करने ,भवन प्रकाश व वातानुकूलन में सौरऊर्जा का भारी स्तर पर उपयोग पहले ही हो रहा है।


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आपको यह जानकर सुखद आश्यर्य होगा कि बंगलौर जैसे शहरों की ट्रैफिक लाइटिंग प्रणाली शत्-प्रतिशत् सौर ऊर्जा पर ही आधारित है।इसी तरह हाईवेज व स्ट्रीट लाइटिंग में सौर ऊर्जा का वृहत् स्तर पर शुरू हो गया है।एक रिपोर्ट के अनुसार हमारे शहर की स़ड़के शीघ्र ही सोलर स्ट्रीट लाइट से ही जगमग दिखाई देंगे।











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सोलर पावर्ड सैटेलाइट

जैसा हमें पता ही है कि हमारे अंतरिक्ष यान व संचार-उपग्रह पूर्णरूपेण और आजीवन सौर ऊर्जा से ही संचालित होते हैं।

एक तरफ इलेक्ट्रॉनिक उपकरणों की बढ़ती ऊर्जा दक्षता और दूसरी ओर सौर उर्जा उपकरणों में निरंतर तेजी से हो रहे विकाश व उन्नति के कारण अब यह संभव दिखता है कि हमारी दैनंदिन ऊर्जा की अधिकांश आवश्यकतायें सूरज के प्रकाश से ही पूरी हो सकती हैं और हमारे मन से यही उद्गार निकलेगा कि- सूरज, वाह ! ऊर्जा का क्या अद्भुत श्रोत है ।


Information Sabhaar : http://ddmishra.blogspot.in/
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Solar Energy : आज हम बताएँगे - सोर ऊर्जा का एक नया उपयोग

Solar Energy : आज हम बताएँगे - सोर ऊर्जा का एक नया उपयोग
India Mein Yeh Technology Mumbai / NCR kee Building Mein Kafee Use Ho rahee Hai




आजकल आप बहुत सी बड़ी बड़ी बिल्डिंगों में देखेंगे तो पाएंगे की वहां एक विशेष किस्म का सोलर हीटर मौजूद है ,
इसमें बहुत सारी पाइप होती हैं और यह टंकी से जुडी होती हैं , पाइप के अंदर कॉपर रोड होती हैं , जो की टंकी के अंदर तक जाती हैं ,
टंकी से पाइप जुड़े रहते हैं , और जब सूरज की किरणे पाइप पर पड़ती हैं और ये पाइप के अंदर के पानी को गरम करने लगती हैं , और यह गर्मी कॉपर रोड शोषित कर टंकी के अंदर मौजूद ठन्डे पानी तक पहुंचा देती हैं , और इस प्रकार पानी अपने आप गरम होने लगता है , साथ ही एक और तरह से पानी गरम होता है , हम जानते हैं की पानी गरम होने पर ऊपर जाता है , और ठंडा पानी स्वत नीचे आता है ।
इस प्रकार टंकी में रखा पानी स्वत गरम हो जाता है , और विशेष तो पर बनी टंकी में यह पानी 1 -2 दिन तक गरम बना रहता है ।
गर्मियों में अगर गरम पानी की जरूरत न हो तो पाइप में पानी जाने को बंद कर दें

बिल्डिंग्स के लिए यह तरीका बहुत ही अच्छा है , अब घरों में भी उपयोग होने लगा है 

सोर ऊर्जा के बहुत सारे उपयोग  हैं, भविष्य में घरों की छतों पर मौजूद पवन ऊर्जा से भी बैटरी चार्ज के विकल्प मौजूद  हैं 

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Solar water heating (SWH) or solar hot water (SHW) systems comprise several innovations and many mature renewable energy technologies that have been well established for many years. SWH has been widely used in Australia, Austria, China, Cyprus, Greece, India, Israel, Japan, Jordan, Spain and Turkey.

In a "close-coupled" SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow. In a "pump-circulated" system the storage tank is ground- or floor-mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.

SWH systems are designed to deliver hot water for most of the year. However, in winter there sometimes may not be sufficient solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is used to heat the water.


Copper is an important component in solar thermal heating and cooling systems because of its high heat conductivity, resistance to atmospheric and water corrosion, sealing and joining by soldering, and mechanical strength. Copper is used both in receivers and primary circuits (pipes and heat exchangers for water tanks)

http://en.wikipedia.org/wiki/Solar_water_heating
http://en.wikipedia.org/wiki/Hot_water_storage_tank
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