All About Solar Energy in Farming I Solar Energy Farm

The sun produces an unbelievable amount of energy that reaches the earth. The amount of energy that is absorbed by the earth in one hour is more energy than mankind uses in one year. The total amount of solar energy reaching the earth in one year is huge – twice as much energy as ever existed from all sources of coal, oil, natural gas, and uranium combined. The sun strikes the surface of the earth at different angles ranging from 0 degrees (no sun) at the poles to 90 degrees at the equator during spring and fall. At the equator during noon time, the earth’s surface gets the maximum amount of energy. As one moves away from the equator, the sun’s rays have to travel longer through the atmosphere. Along the way some rays are reflected into space or scattered by clouds causing loss of energy as they go. On average, about 50% of the sun’s energy makes it through the atmosphere and strikes the earth. The tilt in the earth’s axis of rotation also causes variations in the amount of sunshine received. The north pole receives little sunshine in the winter months and likewise the south pole receives little in the summer months. So the amount of solar energy that reaches any given location varies by latitude, time of year, time of day, and local weather

Solar Cell

A large majority of solar cells are made from silicon. In this section we will discuss only crystalline silicon cells (see the section in Solar In-depth for thin film types of cells). When silicon absorbs sunlight, the energy from the sun excites some of the cell’s electrons into a mobile state where they are free to move around the entire cell. However, in a piece of plain silicon there is no reason for them to go in one direction rather than another (electricity is the movement of electrons in one direction). However, in solar cells, there is a separator called a junction, where two slightly different types of silicon meet. The two types of silicon are pretty much the same, except each one is “doped” – has a tiny percentage of other materials mixed in. The two types of doping (called n-type and p-type) determine its electrical properties. When a random electron reaches the junction, it is accelerated across it (think about a waterfall … the water can only go one way – down). So this flow establishes an electron direction in the system. If a wire is attached to each side of the junction, and sunlight is absorbed by the silicon, the free electrons flow from one side of the junction to the other. This flow of electrons induces a similar flow through the external circuit. This is “electricity” — electrons flowing in a single direction through conductors. This particular flow is called a DC current.

Electricity can be thought of as the flow of electrons (current) through a copper wire under electrical pressure (voltage) and is analogous to the flow of water through a pipe. If we think of the copper wire in an electrical circuit as the pipe, then voltage is equivalent to the water pressure (pounds per square inch) and current is equivalent to the water flow rate (gallons per minute). Power is measured in watts and is the product of voltage multiplied by current. Electrical energy is power (watts) consumed over time and is expressed as kilowatt-hours (kwh). A kilowatt hour is 1000 watt hours. If a 100 watt light bulb is on for 10 hours, it uses 1 kilowatt-hour of power (100 watts times 10 hours = 1000 watt hours or 1 kilowatt-hour). Your electric bill is expressed in terms of how many kilowatt-hours are used each month

We help the client / Farmer to

understand the solar

Study what he wants

Guide him with all basic of solar systems

Ensure he get best of the solar marekt

As a solar consultant, we can offer any or all of these services –

1. Feasibility Study (when customer is not sure how and what kind of plant/ setup needs to be utilized and wants to understand the commercial impact of the same)

a. Assess current and future energy requirement of the consumer

b. Cost-Benefit analysis of adopting Solar Energy

c. Identifying and comparing various available options

d. Survey of potential area and preparing detailed estimate of Plant Cost and Electricity Production

2. Detailed Engineering

a. Preparing various detailed technical documents – like bill of material, technical drawings required for regulatory approvals, detailed installation plan

b. Preparing Operation & Maintenance plan, including use of Remote Monitoring and Production Data Analysis

3. Procurement & Contracting Support

a. Preparing Bid documents / Request for Quotation documents

b. Techno-commercial evaluation of bids

c. Assisting in the award of contracts

d. Following up on delivery of equipment

4. Project Management

a. Preparing project management plan and timelines

b. Ensuring equipment delivered are meeting technical requirements as per bid

c. Supervision of Installation & Commissioning activities

How A Photo voltaic system work

Simply put, PV systems are like any other electrical power generating systems, just the equipment used is different than that used for conventional electro mechanical generating systems. However, the principles of operation and interfacing with other electrical systems remain the same, and are guided by a well-established body of electrical codes and standards.

Although a PV array produces power when exposed to sunlight, a number of other components are required to properly conduct, control, convert, distribute, and store the energy produced by the array.

Depending on the functional and operational requirements of the system, the specific components required may include major components such as a DC-AC power inverter, battery bank, system and battery controller, auxiliary energy sources and sometimes the specified electrical load (appliances). In addition, an assortment of balance of system (BOS) hardware, including wiring, overcurrent, surge protection and disconnect devices, and other power processing equipment. Figure 3 show a basic diagram of a photovoltaic system and the relationship of individual components.

Figure 1. Major photovoltaic system components.

Why Are Batteries Used in Some PV Systems?

Batteries are often used in PV systems for the purpose of storing energy produced by the PV array during the day, and to supply it to electrical loads as needed (during the night and periods of cloudy weather). Other reasons batteries are used in PV systems are to operate the PV array near its maximum power point, to power electrical loads at stable voltages, and to supply surge currents to electrical loads and inverters. In most cases, a battery charge controller is used in these systems to protect the battery from overcharge and overdischarge.

Photovoltaics –

Photovoltaics (PV) is the field of technology and research related to the application of solar cells for energy by converting sunlight directly into electricity  Due to the growing demand for clean sources of energy, the manufacture of solar cells and photovoltai array has expanded dramatically in recent years

Photovoltaic production has been doubling every two years, increasing by an average of 48 percent each year since 2002, making it the world’s fastest-growing energy technology. At the end of 2007, according to preliminary data, cumulative global production was 12,400 megawatts. Roughly 90% of this generating capacity consists of grid-tied electrical systems. Such installations may be ground-mounted (and sometimes integrated with farming and grazing) or built into the roof or walls of a building, known as Building Integrated Photovoltaic or BIPV for short.^[

Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity, have supported solar PV installations in many countries including India , Australia, Germany, Israel,^[ Japan, and the United States.

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<ins class="adsbygoogle"
     style="display:block"
     data-ad-format="fluid"
     data-ad-layout-key="-63+c9+5c+c-65"
     data-ad-client="ca-pub-8400181284928030"
     data-ad-slot="4663670489"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>

You can always contact us for any information on the solar system.

Capt Rajeshwar Singh

Near PWD Store , Opposite District Court, Bikaner, Rajasthan 334001

A-103, Hari Madhur Milan, Sector 5, New Panvel , New Mumbai

Σ +919892350416

Email : solar@suryaprakash.in