Tag - solar rooftop

From SAND to Solar Panel

How are Solar Panels made ? Steps & Production assembly.

How are solar panels made ?


Solar power technology is not a recent development; in fact, it dates back to the mid-1800s to the industrial revolution when solar energy plants were developed to heat water that created steam to drive machinery. Continue reading below for a brief solar panel history.

From SAND to Solar Panel

Solar Industry Supply chain starts from SAND. SolarOcta info graphic makes it easy to understand how solar panels are made.

Solar panel history

In 1839 Alexandre Edmond Becquerel discovered the photovoltaic effect which explains how electricity can be generated from sunlight. He claimed that “shining light on an electrode submerged in a conductive solution would create an electric current.” However, even after much research and development subsequent to the discovery, photovoltaic power continued to be very inefficient and solar cells were used mainly for the purposes of measuring light.

Over 100 years later, in 1941, Russell Ohl invented the solar cell, shortly after the invention of the transistor.

How solar panels work

Light (photons) striking certain compounds, in particular, metals, causes the surface of the material to emit electrons. Light striking other compounds causes the material to accept electrons. It is the combination of these two compounds that can be made use of to cause electrons to flow through a conductor, and thereby create electricity. This phenomenon is called the photo-electric effect. Photovoltaic (or PV) means sunlight converted into a flow of electrons (electricity).


Solar power is a rapidly developing energy source in Australia and around the world. The potential for using the sun to directly supply our power needs is huge.

Solar panels can generate electricity without any waste or pollution, or dependence on the Earths natural resources once they are constructed. They have no moving parts so modules are very reliable and have a long lifespan. Solar panels are relatively easy to install and are very low maintenance.

A useful characteristic of solar photovoltaic power generation is that it can be installed on any scale as opposed to conventional forms of power generation that require large scale plant and maintenance.

Solar panels can be installed to generate power where it is needed, which removes the need to transport and distribute electricity over long distances to remote areas.



Solar Subsidy in Delhi- Grid connected rooftop Solar power plant 2019

Updates from SolarOcta HQ

It has been a while since we have posted our updates on our blog.

This has a reason though, work more than you talk as our team likes to hustle and be low profile. As we believe actions speak louder than words.

Recently a lot has happened,

We are working tirelessly to enhance the installed grid connected Solar PV capacity in Northern parts of India.


With this, we have been closing on 1 MW target.

In the meanwhile, onto residential rooftop portfolio.

No subsidy since our inception

But now!

We are based in Delhi, and have been working for the past 2 years, without any subsidy to our customers from government, as the benchmark costs set for subsidy consider low-quality components and only generic brands can be considered for the set price band, which compromises the system designed for 25yrs, and puts a second thought about the operation and maintenance and warranty claims from these not so popular brands, thus we never considered subsidies as a part of our working portfolio.

Come 2019, our 3rd year of operations.

We still consider you should opt for a solar power plant regardless of the subsidy provision by our government because Government policies should be considered as a helping hand to the needy,

Government subsidy on the solar power plant is considered on the lowest quoted benchmark cost.

Which here in Delhi, for Residential consumers is set at INR 44,100/KWp. For a plant size between 1 to 10 KWp.

And this is the last time our government is providing a Subsidy of 30% of the above-mentioned amount.

this subsidy is for Residential and institutional consumers.

(varies as per Govt. Between INR 12,600 – 13,200 per KWP)

And For once,

We wanted to provide this option to our consumers who are dependent on subsidies to make a choice about their independence from electric bills.

From June 1st, the policies have been changed and the new projects which will be proposed by Government after September would only have a Subsidy of 20%. for up to 10Kwp plants, only for Residential consumers.

Now, We at least once wanted to know how these subsidies and government departments work and cater our Sustainability development services towards customers depending on government subsidies.

Thus, we applied to be a vendor for the government of Delhi NCT.

And agreed to the norms set by DERC and IPGCL.



We have a limited quantity of 100 KWP for subsidy disbursement.

Only valid for Residential and institutional consumers of 1 to 10 KWp plant size.

Now the best part, this subsidy is valid on both of our premium and economy options.

*Only Indian brands for Solar Panels.

*Only inverters with 40% domestic manufacturing are eligible for the subsidy.

So cross out the micro-inverters.

We reserve the right to consider which 10 customers will be provided this subsidy on first come first serve basis.

Insights to


This is a special scheme only available for Delhi.

Referred as Mukhya Mantri solar yojna

In this scheme,

All rooftop solar power plants installed by an empanelled vendor in the year 2019, will be eligible for a monetary incentive by the Delhi government.

This incentive is capped at INR 2/kwh unit generated by the solar power plant,

Can be used for self-consumption or injected into the discom grid.

For each unit generated by your solar power plant, you are going to receive a credit into your bank account every 6 months. I.e twice in a year.

This payment will be effective for the next 5 yrs.

The incentive is capped at 1100 units per KWP installed Capacity per year.

So, if you install a 5 Kwp system,

It should generate 5500 units in a year, Acc. To Delhi government norms,

So 5500 x INR 2 = INR 11,000 EACH YEAR.

( SPLIT IN 2 PAYMENTS, INR 5500 every 6 months credited into your bank account)

INR 11,000 X 5 yrs = INR 55,000 in 5 years.

This is an added incentive we as an Empaneled vendor can provide to our customers opting for net metering in Delhi.

This is the benefit which will be provided to all our customers, regardless of the first cum first serve subsidy internal clause.


You are not only saving money on your Electricity bills by consuming clean electricity generated by solar energy at the daytime, but also getting paid to use that clean energy as an added bonus.

This GBI, helps our consumers get ROI in under 4 years, no matter how expensive system they opt for.

If you own a Rooftop and have electricity consumption, duh

Which we all do, this summer is all about AIR CONDITIONING.

Going solar for all your Electricity Needs, MAKES ECONOMICAL SENSE,








USE THE AC all day without any guilt of having large carbon footprints and causing emissions to stay cool.


Team SolarOcta


Call today +91-8851067914

Whatsapp and tell us how we can help. +91-8851067914


Solar Net Metering Principle

Solar Rooftop Net Metering : Benefits ?

Rooftop Solar Photovoltaics – Net Metering System: Energy Security & Freedom.

Solar Net Metering Principle

How Solar PV on Rooftop Gets the term Grid-Tie & Net Metering Connection.


Today, Many People are adopting the concepts of a green,clean and sustainable lifestyle by moving closer to Alternate & Clean Sources of Energy like Solar Power, Wind, Bio Gas etc…. All this while still drawing power from Utility Supply aka Traditional Utility Power Grid, which is still running on Conventional Power Generation Methods namely Coal-based power plants, Hydropower plants utilizing Dams.

Connected to these Grid Supplies Utility Metering is done to keep track of the energy consumption by the consumer for the load connected.


Now, What is Net Metering or Grid Tie Metering for Solar Rooftop Power plant?

It is a billing arrangement that allows the consumer to sell excess energy to the utility company or buy deficit energy from the utility power company using a meter to track this energy exchange.

In other words,

 Solar Rooftop Net metering takes into account the difference of energy consumed by the grid & energy Fed back to the Grid from your Solar Power Plant on the rooftop of your own property.


Net metering Systems are subject to various contingencies put in place by the Utility companies & government to Protect the Interests of Parties Involved in the Business of Electricity, Due to High Investment Assets Put in Place for Long-Term Yields.

Namely due to Huge Setup costs incurred by these undertakings from 

GENCO’s = Generation Companies (owns Power plants/DAMs etc..)

TRANSCO’s = Transmission companies (owns Electricity Lines from Dams to cities) 

DISCOM’s = Distribution Companies ( buys power from Transco to their Sub Stations inside the City, Distributes Power to Consumers using  Grid Setup by them)

Look at this image for a good idea.

Power Industry Interaction

Power Industry major players and their interaction


Now, Possibilities for Net Metering Systems? 

CASE #1 

If the Generation from your Rooftop Solar Power Plant is more than the Required Load or more than what you can consume, The Excess Energy is Fed Back to Your Utility Supply Company (DISCOM) and the meter runs backward (only if it’s a Bidirectional meter) else you Get Metered using another Meter for Excess Energy Fed back.

The System owner is Credited for the Units that were Fed back into the System.


CASE #2 

If the generation of energy from your rooftop solar power plant is less than the required load, the deficit/extra energy is drawn from the main grid/ Utility power supply, and the meter, as usual, runs forward. System owner is charged the units that were consumed. 


In both these Cases, The System owner is charged for the difference of units Consumed VS units Fed back into the Grid as per Standard Retail Tariffs.

Note- A utility Company will never ever pay you for the Power you Supply them, you can only settle the Transaction in terms of your billed amount. 

also, in a grid-tie system, you will never be independent for the electricity bills, It can be Downsized to negligible amounts of INR 40/50 Rupees. 

Why do you ask? 

well, to explain in simple terms, you have opted for a Grid connection to your property, DISCOMs aka your Grid Supply utility company, took that request and layed down Electricity Lines & poles from their Nearest Sub Station to your house To cater to your Electricity needs, This Cost of New Wire, Poles, Transformer was never charged to you, Your Utility supply company took this heavy investment cost with a pinch of salt assuming you will be a good and loyal customer to their company and will continue to pay for electricity bills, and they will eventually be able to recover the amount they invested for you within a period of 20/30 years.

And Now You, get Enlightened about #climateChange #globalWarming and #SolarOcta and opt for #SolarEnergy 

You Cut into their Business model, namely Disrupt their way of doing Business, But then You are only able to Meet your Day Time Electricity Consumption using Rooftop Solar, and still use their Supply network for Night Time Load consumption. 

Whereas, for Institutional & Commercial Consumers, you’ll say that you only Consume Electricity at Daytime & have a Large Enough Roof Space Area, Free From Shadow, Ideal for Solar PV Installation, & Now you opt for Solar Rooftop Power Plant of Capacity Enough to Meet 100% of your Electricity Demand.

Now What?

well, now you still haven’t disconnected from the Grid Supply, but are able to Meet all your Demand independently, Consider the Cost Discom Put in to Bring Electricity to your Property with all those Poles, Transformers, and wires……..

Remember that? 
You are still enlisted on their company as a consumer with connection…

Until you have them connected to your property, no matter how many units you supply them back they will still Charge for Connected load supply as a minimal connection fee, for any day if you want to draw power from the grid – they have it arranged for you.

Benefits of Net Metering?

 Using a Net Metering Connection Comes with Following benefits:

  • Monetary Benefits- The owner is charged for net energy consumed from the utility grid, directly enjoying financial benefits by savings on your monthly electricity bills.
  • Batteryless systems-  This configuration is the Best, Excess energy is directly fed back into the Main Utility grid and deficit energy is directly drawn from the Supply Grid as and when needed. This also helps avoid the high upfront cost of Heavy batteries which were earlier used in Solar power systems to bring a balance & stability to the system.
  • Independence from backup systems- Due to Direct Switch Between Energy Sources and no dependency on backup systems.
  • Less or No Maintenance-  With No moving Parts involved in the rooftop solar power plant, no batteries, maintenance becomes next to negligible, except that you have to keep your solar panels clean from Dust and Bird droppings, Washing panels with water every 10-15 days is all you need.


Want to know more about Net Metering – Go through our whole blog Section for Interesting Reads on Solar Power! 

Search your State Solar Policy on our Knowledgebase page and read the criteria in your state for New Net metering connections.


How SolarOcta 3D Solar Design Simulation Philosophy Works ?

SolarOcta 3D Simulation– Rooftop Solar Design Philosophy!

Designing a Good Solar PV power plant is the most important part of Installation.

This is a 3D simulation video of a 7KWp installed capacity Solar PV plant Setup using Elevated Structure SolarOcta Canopy Design at a Commercial location in New Delhi by SolarOcta.

This Project had a huge 12-meter high wall on 150-degree azimuth which was hindering our client from opting for Solar Plant on his roof, with our design expertise, we overcame this obstacle of large shadow on the rooftop and completed the project successfully on time.

This is a 3D simulation video of a 5KWp installed capacity Solar Photovoltaic plant Setup at a Farmhouse location in Gurugram by SolarOcta.

We prepare and Install our Solar Power Plants using Pin Drop Accuracy Models prepared using powerful         3D simulation tools such as Autocad, Sketchup Pro, Google Earth Pro, Pvsyst, Helioscope, PVsol, skelion, Archelios & many more.

All our Projects in Solar Rooftop Industry are implemented for Residential, Institutional & commercial Solar Installation – Call us Today.

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We Take Emence Pride in our Solar Rooftop Power Plant Design Expertise and Implementation of the Project Feasibility Before Investments.

Our Design Simulations Provide Consumers with a better understanding of their Rooftop or Groundmount Space being Utilized to Full Potential to Harness the Maximum Solar Power From Shadow Free Area, Ensuring Maximum ROI (return on Investment) within described Time Period of 3-4 years of Project Installation.

This month of August We are Providing With Free Site Survey to all clientele in Delhi NCR for Residential, Institutional & commercial Electricity consumers.

Opt for Solar Rooftop Power Plant Installation Today.[booking]

Freedom from Electricity

Free Solar Site Survey = Freedom from Electricity bills !

Free Solar Site Survey by SolarOcta – August 2018 only! 

Freedom from Electricity

Our Freedom Month Offer for – India’s 72nd Independence day 2018.
Get independent in terms of electricity by opting for Rooftop Solar Power Plant. We want everyone to become Self Sustainable.
Now you can By opting for a Rooftop Solar Power plant, You can buy your Freedom from Electricity Utility Power companies which charge you hefty bills, lossy connections & are Burning Fossil Fuels such as Coal, Oil & Gas which pollute the Air while producing electricity in Far away Power plants, losing 40% in Transmission lines.

The Further a power plant is from the site of consumption, the more Pollution it creates.

Whats more?

They can hike up your electricity bills anytime they want, without our government regulating them.


Each year  Electricity Cost per unit Hikes up by 7 %.

Add that to your taxes as well.

If you are Concerned about your Hard Earned money going away to electricity bills,

& care a bit about Nature,  Environmental Protection as well.

We have an Answer for you,
You are lucky to be alive at a time when Clean Technologies are more affordable for public use –

& Solar Photovoltaics   AKA Solar Panels are a boon to All our Human Electricity Needs in 2018.

The working principle of solar panel?

Each day when the Sun Shines, for as long as it shines, you will have electricity if you deploy a Solar Plant.

how does a solar plant work?

Not many people know about the benefits of a Solar Power Plant!

It might seem costly to you right now, but with a guaranteed Return on Investment in 4 to 5 years of time & with an estimated 500% growth in a period of 25 years, This Investment option is the best option available right now in the market.

So grab your Free SolarOcta Site Survey for Freedom from Electricity Bills forever!

Our cost for a Solar Site Survey is INR 800 per visit.
We had a good run last year & want to enlighten more people to opt for solar rooftop plant, thus Freedom Month Sale for Free Site Survey.

[booking startmonth=’2018-8′]

Grab the offer before the Month ends, offer valid only till 31st August 2018

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