Frequently Asked Questions about Solar Energy

Q. How does solar power work?

The two most common types of solar energy technology are photovoltaic (PV) cells and solar thermal collectors. PV cells contain a semiconductor material (typically silicon-based) which converts sunlight into direct-current (DC) electricity. An inverter converts this DC power to 230-volt 50 Hz AC power, which can then be connected to a home or building power supply. Solar thermal collectors absorb the sun thermal energy and use it to heat water or other fluids, which can be used for hot water applications or circulated through a home or building for space heating.

Q. What are the components of a Solar power plant?

Generally, a Solar power plant consists of the following components:

  • Solar Panels: For converting energy in Sun rays into Electrical energy (DC power)
  • Solar inverter: For converting DC electricity into usable AC power (230V-50Hz)
  • Batteries: To store electrical energy for use when Sun is not shining
  • Mounting Structure: Holds the PV panels at particular inclination and direction for maximum efficiency
  • Balance of System (BoS): Includes junction boxes, MCB, connectors, lightening protection etc.

Q. How can Solar energy be used optimally?

Office - Energy Consumption Pattern

As per current technology scenario, Solar energy can be optimally utilized during the day time. As seen in the graph above, for typical day time load (e.g. offices, institutions, workshops, etc.) power consumption peaks around the time when Sun energy is received the maximum (yellow area in graph). This scenario allows us to consume the Solar energy as it gets generated. So, the requirement to store energy in batteries gets reduced and results in substantial reduction in initial and running cost of solar power system. Solar energy is the perfect alternative to DG sets for daytime loads with upto 60% savings.

Q.How much space do I need for a solar photovoltaic system?

In bright sunlight, a square foot of a conventional photovoltaic panel will yield 10 watts of power. That’s a helpful rule of thumb for calculating a rough estimate of how much area you might need. For example, a 1000 watt system may need 100 – 130 square feet of area, in clear South facing direction, depending on the type of PV modules used.

Q. Can I see Solar product demo before installing Systellar products?

Systellar Innovations is now 100% green energy powered. We recently installed a 25KW Hybrid Solar power plant to run the entire factory load. We are leading the way by becoming the first factory in West Uttar Pradesh region, which is completely self sufficient in its power needs using renewable energy. The plant was commissioned in September 2015, and we welcome you to visit it.

Since 2013, we are also operatingĀ the 1st Showroom in North India running 100% on Solar Power. All loads inside the showroom including 1.8T Air-conditioner, lights, fans run exclusively using solar energy produced by 3.75 kW Solar power plant.

Q. What are the environmental benefits?

Solar energy creates electricity and heat and avoids pollution unlikeĀ conventional coal plants and nuclear plants. Using national average emission factors, every megawatt-hour of electricity generated through a solar PV panel avoids more than 1,300 lbs of carbon dioxide (CO2), more than 5 lbs of sulfur dioxide (SO2), and almost 2 lbs of nitrogen oxide (NOx), and it also avoids producing radioactive nuclear wastes.

Q. What is the scope of Solar power in India

India is densely populated and has high solar insolation, an ideal combination for using solar power in India. Due to its geo-physical location, India receives solar energy equivalent to nearly 5,000 trillion KWh/ year, which is far more than the total energy consumption of the country today. West UP region on an average has 300 to 330 sunny days in an year and is perfectly suited for Solar power generation. Solar energy is the perfect solution to tackle the power shortage issue in India. With ever reducing costs of solar technology, Solar power is fast becoming the ideal alternative to DG sets and is on path to Grid parity somewhere around 2017.

Q. Does solar power make sense for me?

There are a couple of factors that go into whether or not solar is a good fit:

  • Do you have daytime or night time load?
  • How many hours of power cut per day does your area receive?
  • Are you running diesel generator for more than 3 hours a day?
  • Does your roof get clear sunshine throughout the day?
  • Do you have budget for upfront payment for solar solution?

Visit our Discussion Forum on Solar PV system design