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| Solar Thermal Programmes |
| A) Solar Water Heating Systems |
| The Solar Energy incident on earth's surface can be conveniently utilized for the benefit of human society. One of the popular devices that harness solar energy is the Solar Water Heating Systems. |
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| The solar water heating system consists of a solar collector, a storage tank kept at a height behind the collector with connecting pipes. Based on the type of collector used, the Solar Water Heaters can be of two types: |
- Flat plate collector based systems.
- Evacuated tube collector based systems.
|
| The Solar Water Heating System uses the suns heat energy to heat the water which flows in the collector tubes. The heated water is stored in an insulated storage tank and it can be utilized at any time depending up on the requirement of the user / user organisation. By using the Solar Water Heating Systems, the water can be heated in the range of 60ºC to 80ºC depending on the intensity of the solar radiation. |
| The other details of the Solar Water Heating Systems are, |
| Uses |
- Bathing
- Washing
- Cleaning
- Boiler feed water
|
Application |
| Domestic |
- Dairy
- Hotels, Hostels & Guest Houses
- Hospitals & Nursing Homes
- Process heating application in Industrial sector.
- Pharmaceutical, Clinical and fertilizer Industries.
|
|
| Advantages |
- Minimum maintenance
- Long Service Life since there are no moving parts
- Easy to install
- Negligible operating cost
- Economical investment & Eco friendly
- Payback period is less than 3 years
- The system works automatically without any attention
- The hot water in the system will be stored in an insulated storage tank to make use during non-sunny hours.
- No electricity / gas requirement.
|
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| Environment Benefits |
| One 100 LPD Solar Water Heating System can prevent emission of 1.5 tons of Green house gases per annum. |
|
| Cost |
| The cost of Flat plate collector solar water heating system varies from Rs.190/- per liter to Rs. 130/- per liter depending up on the capacity of the system. The cost of ETC based system is cheaper than the Flat plate collector system. |
|
| Savings |
SAVINGS AT A GLANCE
(For a typical 100 LPD Solar Water Heating Systems) |
| Fuel |
Fuel Saved (Kg/Annum) |
| Electricity |
1500 KWH |
| LPG |
265 |
| Kerosene |
380 |
| Fire wood |
2213 |
| Charcoal |
893 |
|
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| Interest Subsidy Loans |
Soft loans under interest subsidy scheme will be available from Banks with the following interest rates |
- @ 2% for Domestic users.
- @ 3% for institutional users not availing accelerated depreciation.
- @ 5% for industrial / commercial users availing depreciation.
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| Capital Subsidy (To the Organisations/Institutes those not Availed the Soft Loans) |
- @ Rs. 1,100/- per sq.m of Collector Area to registered non-profit making institutions.
- @ 825/- per sq.m of Collector Area to registered commercial establishments.
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| Service Charges to Motivators / Agents |
| Motivators / Agents who involved in attracting potential buyers of Solar Water Heaters will be provided an amount of Rs. 100/- per sq.m of collector area as incentive. |
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| Government of Andhra Pradesh has issued GOs under reference Nos. G.O.Ms.No.302 M.A. dated : 03.08.2004 and G.O.Ms.No.506 MA dated: 03-12.2004 of Municipal Administration & Urban Development (M) Department making mandatory for installation of Solar Water Heating Systems at proposed construction of hospitals, nursing homes, hotels, guest houses, lodges and multi-storied buildings of stilt + 5 floors or 15 meters and above height provision shall be made in their plans. The Year-wise installations of SWHS are as follows: |
| |
| Achievements |
| Sl.No. |
Year |
Installed Capacity of SWHS in LPD |
| 01. |
Up to 2002-03 Year |
5,63,075 LPD |
| 02. |
2003-04 |
39,000 LPD |
| 03 |
2004-05 |
55,000 LPD |
| 04 |
2005-06 |
57,400 LPD |
| 05 |
2006-07 |
26,000 LPD |
| 06 |
2007-08 |
- 16,100 LPD (Genl. Prog)
- 86,250 LPD (Mandatory Programme)
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| B) SK-14 (Dish Type) Solar Cooker |
| This is a concentrating type parabolic dish solar cooker with Aperture diameter of 1.4 meter and focal length of 0.28 meter. The cooker consists of parabolic dish with reflecting material of anodized aluminum sheets having reflectivity of over 75% and reflection stand. The cooking vessel is to be kept in the stand arranged at the focal point of the cooker and the temperature achieved at the bottom of the vessel could be around 200° to 350°C with the reflected sun rays focused. This temperature is sufficient for roasting, frying and boiling. This cooker can cook food for 10 -15 people, using from one hour after sun rise to one hour before sunset on clear sunny days. This cooker is useful for individuals in rural as well as urban areas and also for establishments like dhaba’s, tea stalls on road side, etc. the cooking time ranges from 30 to 40 minutes. |
| Cost of the SK-14 Cooker is |
= |
Rs.6,500/- |
| MNRE CFA/subsidy to rural residents only |
= |
Rs.1,500/- |
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Salient Features |
- It is economical and eco friendly.
- Temperatures ranging from 200° to 350°C can be reached.
- No need to wait for hours after keeping utensils in sunshine.
- Pressure cookers of up to 12 Ltrs. Capacity can be used to cook rice, dal and a variety of other dishes within half an hour in good sunshine.
- Also useful for sterlization.
- User friendly, easy to move and clean.
- Safe to operate and durable
- Uses highly reflective aluminum surface to increase efficiency
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|
| The year-wise achievements under this programme are as follows |
| Sl.No. |
ProgrammeYear |
No. of Cookers
Supplied |
| 01. |
2002-03 |
41 Nos. |
| 02 |
2003-04 |
19 Nos. |
| 03 |
2004-05 |
22 Nos. |
| 04 |
2005-06 |
173 Nos. |
| 05 |
2006-07 |
213 Nos. |
| 06 |
2007-08 |
Under Progress. |
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C) Solar Steam Cooking Systems |
In Solar Steam Cooking Systems, Steam is generated by using Solar Energy and that steam is being used to cook the food.
Solar Steam Cooking Offers an ideal solution when cooking is needed for 350 people and above. |
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| The World’s largest Solar Steam Cooking System to prepare 30,000 meals per day was established / installed at Tirumala Tirupathi Devasthanam at a cost of Rs.1.10 Crores. MNRE has provided a grant of Rs.48 Lakhs. The system saves 275 liters of diesel per day and the project pay pack period is only 3 years. |
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The details of other installed systems are as follows: |
| 01. |
M/S. Sanghi Poly Indutries, SangiNagar, Hyderabad. |
- |
1000 Meals/day. |
| 02. |
Rishi Valley Public School, Madanapalli, Chittoor Dist. |
- |
1000 Meals/day |
| 03. |
Grey Hounds, Rajendranagar, Hyderabad. |
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700 Meals/day |
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| D) Battery Operated Vehicles (BOV) |
| The Objective of the Programme is to provide the Battery Operated Vehicles which are non-polluting and quiet in operation, conserve petroleum products, check environmental pollution, to get feedback on the performance of Bov’s in actual operation for continuous improvement and also for awareness promotion for the eco-friendly vehicles among the people. |
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The cost of Four Wheel battery operated vehicle (Reva Model) is around Rs.3,50,000.
The MNRE is providing an amount of Rs.75,000 as subsidy for the passenger cars having a range of at least 90 KM in a single charge of batteries and a top speed of 50 KM/hour.
The Vehicles are under operation with the following Organisations: |
| |
Sl.
No. |
Name of the User Organisation |
No. of Vehicles under use |
| 01 |
Satish Dhawan Space Centre, Sriharikota, Nellore Dist. |
06 Nos. |
| 02 |
Military Hospital, Secunderabad. |
02 Nos. |
| 03 |
Dr. M.N.Reddy Degree College, Pakal, Warangal Dist. |
01 No. |
| 04 |
M/S. Non-Ferrous Materials Tech. Devpt. Centre, Hyderabad. |
01 No. |
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