What is Solar Energy?

Solar power

Solar power is the conversion of sunlight into electricity, either directly using photovoltaics, or indirectly using concentrated solar power.

CSP

Concentrated Solar Power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.

Photovoltaics

Photovoltaics convert light into electric current using the photovoltaic effect. Available in Polycrystalline and Monocrystalline.

They are an important and relatively inexpensive source of electrical energy where grid power is inconvenient, unreasonably expensive to connect, or simply unavailable.

However, as the cost of solar electricity is falling, solar power is also increasingly being used even in grid-connected situations as a way to feed low-carbon energy into the grid.

Commercial concentrated solar power plants were first developed in the 1980s.

Photovoltaic

A typical silicon PV cell is composed of a thin wafer consisting of an ultra-thin layer of phosphorus-doped (N-type) silicon on top of a thicker layer of boron-doped (P-type) silicon.

An electrical field is created near the top surface of the cell where these two materials are in contact, called the P-N junction. When sunlight strikes the surface of a PV cell, this electrical field provides momentum and direction to light-stimulated electrons, resulting in a flow of current when the solar cell is connected to an electrical load

The current (and power) output of a PV cell depends on its efficiency and size (surface area), and is proportional to the intensity of sunlight striking the surface of the cell.

For example, under peak sunlight conditions, a typical commercial PV cell with a surface area of 160 cm^2 (~25 in^2) will produce about 2 watts peak power. If the sunlight intensity were 40 percent of peak, this cell would produce about 0.8 watts.

Why Solar

Peak power deficits and rising power prices

Strong regulatory support

Solar reduces your electricity bills

It improves the value of your home

Solar positioned to win among alternatives

Solar approaching parity

Long life time: Solar energy systems have a 25 years warranty, but can last 40 + years With occasional maintenance.

Sustainable energy : The sun is an infinite natural source of energy. Unlike fossil fuels it will never run out.

Solar energy credits :When you produce more energy than you need ,the utility company will buy back the unused energy for credits.

No carbon footprints: Solar systems produce zero emissions(gasses , Smoke) or chemical by products.

Create new jobs :The solar industry has created over100000 new domestic jobs.

Best income source: Industry for next 20 years

Type of Solar Plant?

Roof Top Solar Power Plant

Small solar power plant from 1 kwp to 50 kwp are being installed on roof of any building roof top solar power plant are further classified as a1 roof top off grid solar power plant where battery bank is provided to store the generated energy a2 roof top grid tie solar power plant where generated solar energy is directly fed into the grid and utilised grid tie energy metering has two option one is gross metering and another is net metering this is subject two application and requirement of customer

Ground Mounted Solar Powerplant

Ground mounted solar power plant are installed on ground after making soil test foundation are made plant are in the range of 100 kwp 1000 kwp or more 1 mw solar power plant need 4,5 acres to 5 acres land for crystaline technology and around 6.5 to 7.5 acres land is required for thin film technology useful life of solar power plant is 25 years with 90 % output for first 10 years and 80% at the end of 25 years solar energy generation which is 1,5 million per year depends on nature of sunny days,solar irradation,day temp, etc.

Solar System Installation Workflow

  • Preliminary
    Stage

  • Site Survey to Understand customer requirements
  • Assessment of energy usage of customer
  • Provide finance options
  • Prepare DPR
  • Auto-Cad drawing
  • Design and
    Installation

  • Design an efficient solar plant with quality panels and balance of systems (MNRE Approved)
  • Install the system with high quality workmanship

  • Quality
    Testing

  • Perform quality checks as per civil, mechanical and electrical checklists
  • Perform Pre-commissioning tests on the complete system and upon satisfactory commissioning, perform post-commissioning checks .
  • Operations &
    Maintenance

  • Perform maintenance checks as per electrical, mechanical quality checklists
  • Cleaning of solar modules
  • Preventive Maintenance as required.

Way Forward

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