:: Wind Solar Hybrid System

Nature has given sunlight in abundance to mankind. Solar energy and wind energy are mostly available throughout the year. An equipment working on solar and wind called Wind- Solar Hybrid System can generate electricity.
Solar energy is available only during day-time whereas wind energy is available throughout the day depending upon the atmospheric conditions.

Wind and solar energy are complementary to each other, which makes the system to generate electricity almost throughout the year. The main components of the Wind-Solar Hybrid System are wind aero generator and tower, solar photovoltaic panels, batteries, cables, charge controller and inverter. The Wind -Solar Hybrid System generates electricity that can be used for charging batteries and with the use of inverter we can run AC appliances. Wind aerogenerator is installed on a tower having a minimum height of 18 mtrs. from the ground level. Because of the height, the aerogenerator gets wind at higher speed and thereby generates more power.

Wind aerogenerator starts generating power at a cut-in speed of 3.1 m/s. The aerogenerator generates three phase AC power, which is converted into DC through the charge controller. The solar photovoltaic panels generate DC power, which is connected to the charge controller. The generated DC power is then stored in the battery bank. The batteries require minimum maintenance and their life is around 5-6 years. The stored power of the batteries is connected to utility through pure sine wave high efficiency inverter, which converts D.C. power into A.C.. Various instruments are incorporated in the system for controls, safety and indication.

The energy meter displays power consumed by various gadgets. Necessary precautions are taken to protect the aero generator from damage due to excessive wind speed. Both the aero generator and PV system are regulated through EZ wire control module to control battery charging. Over charging and deep discharge of batteries are regulated in the control module and overcharge is diverted into DUMP LOAD for protection. Electricity stored in the battery is converted into AC through inverter and is utilized for light, fan, computer, fax machine etc.

The Wind-Solar Hybrid System is particularly useful where conventional power is difficult to procure due to high costs and where power failures are frequent. It has proved to be a boon at such places. It has different capacities ranging from 400 Watts to 10 KW . On clear sunny days, the system will produce 2.5 to 3.0 units per KW of the installed capacity. However, it depends on the wind speed and solar radiation available at the particular site. The approximate cost of the system is Rs.2.25 to 2.50 lakhs per KW. MNRE provides subsidy of 40 to 65% of total cost for different categories of beneficiaries.

The Wind-Solar Hybrid System is particularly useful where conventional power is difficult to procure due to high costs and where power failures are frequent. It has proved to be a boon at such places. It has different capacities ranging from 400 Watts to 10 KW . On clear sunny days, the system will produce 2.5 to 3.0 units per KW of the installed capacity. However, it depends on the wind speed and solar radiation available at the particular site. The approximate cost of the system is Rs.2.25 to 2.50 lakhs per KW. MNRE provides subsidy of 40 to 65% of total cost for different categories of beneficiaries.

Total of 981 KW capacity (157 Nos.) systems are installed in Maharashtra since inception of this programme from 1998 to 31/03/2011 and In the financial year 2010-11 MEDA has installed 307 kw capacity wind hybrid systems at 31 sites in state of Maharashtra. During the year 2011-12, work for 431.14 kw capacity at 32 sites is in progress. In addition to this MEDA’s target for the year 2011-12 is to install the 110 kw capacity wind solar hybrid systems at various Ashram School/ Hostels and Rural Hospitals. Also Proposals of 272.8 kw capacity under market mode has been submitted to MNRE by various manufacturers to MNRE for sanction of CFA. The beneficiaries who have installed the Wind-Solar Hybrid System include the Govt., Semi-Govt., trusts, private institutions, academic institutions etc. The demand for the system is on rise and it is becoming popular as an alternate system for conventional power. MEDA has installed a system of 11.2 KW capacity (wind - 3.2 KW and SPV -8.0 KW). It generates around 25 units per day. It was commissioned in December 2001. 14 Nos of computers and 5 printers, one display board and 22 CFL’s and are connected with it.

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Download Yearwise List of Installation of Wind Solar Hybrid System in Maharashtra and List of registered Manufacturer /Dealers