Tuesday, 5 March 2013

Solar Energy Power Project : Execution Stages

Solar Energy Power Projects using Photo Voltaic (PV) technology is gathering momentum in India due to deeper penetration in understanding of the Technology, Commercials and supporting Government policies. Of course improved affordability due to fall in PV module costs is another major factor fueling the momentum. In fact as observed earlier - PV Solar Power has the potential to exceed Wind Power in terms of generation.

Industrial plants and Commercial Facilities opt for PV Solar Project due to several reasons. The most significant ones include –
  • Ever-increasing price of grid power (anything above INR 5.0 per kWh for grid power can be considered expensive)
  • Availability of good rooftop space
  • Excellent subsidies and incentives for captive projects
  • Long and maintenance-free life of the installation
Details of the same are also included in our generic Solar Energy Industrial Report.

PV Solar Power Project execution consists of various stages as depicted below

Solar Energy Power Project : Execution Stages
Solar Energy Power Project : Execution Stages

The Pre-Project Stage consists of site visit by a Solar Expert for Site Survey + Analysis + Techno-Commercial Viability Report Preparation. It is the most important stage of a PV Solar project as it enables one to understand complete Techno-Commercials of the Project primarily the RoI and IRR calculations which form the basis of the investment decisions.

We also include Solar Energy Training as part of this first stage which enables one to get answers to various queries such as :
  1. Is my plant suitably located to generate Solar Power?
  2. What capacity installation is possible at my site?
  3. Are there any technical challenges in PV Solar project execution at my site?
  4. What are the major technical components in the project and what is their life?
  5. How many units (kWh) per day, per month, per year can I expect from PV Solar?
  6. What is RPO Obligation?
  7. What are the various Government subsidies and incentives and which is the best for my projects?
  8. What is the investment required for the projects at my site?
  9. What is the RoI and IRR of the identified projects?
  10. What are various technologies and what is the most suitable technology for my site in terms of output and durability?
  11. What are the short, medium and long-term REC (Renewable Energy Certificate) benefits?
  12. What kind of loads can Solar support in my plant and what part of such load should I focus on for PV Solar?
  13. Will these projects be grid-synchronized or will these projects require batteries?
And More....

Several such questions are answered through our onsite discussions with your team and also in our Detailed Techno-Commercial Viability Report submitted at the end of Pre-Project stage. This Report forms the basis of an informed decision and is thus no wonder that several leading Industrial Plants are opting for PV Solar Power Project beginning with the first step of Pre-Project assessment. In consecutive posts we will update the information about the next stages.

If your plant or commercial site is paying anything above INR 5.0 per kWh for power it makes tremendous sense to opt for PV Solar power for at least a part of your requirement. 

Enerco Energy Solutions LLP is a leading Consulting and Advisory Company in PV Solar and Energy Optimization with Clients such as :
Solar Energy Clients of Enerco

And More.....


  1. Do you charge anything for 1st Stage ie Pre-Project Stage ?

    1. Dear Sir,

      Thank you for your comment.

      For non-profits we do not charge for the first phase.

      For investor groups and commercial entities the charges are minimal and could be set off against project execution.

      Could you please help us with your mail id or drop us a mail on solar@econserve.in to take our discussion forward?

      Many Thanks !

  2. What is the gestation period for a 1 MW project?

    1. Dear Sir,

      Thank you for going through our article and commenting.

      The gestation period depends on several factors such as - type of project (grid-feed / off-grid), site (rooftop / ground), site conditions, location, technology used etc.

      Primarily the civil and mechanical work could be accomplished in around 20 to 25 days from zero date. Material delivery is subject to site conditions and location. Also it is a subject of material availability with the supplier., but it can take about 40 days from zero date. Installation and commissioning would take about 15 days after material deliverability.

      In a nutshell it might take around 3 months (subject to various conditions) from the zero date for completion of a 1 MW project.

      For any further queries, please drop us a mail on solar [at] econserve [dot] in and we will be glad to assist.


  3. Dear Sir,

    I have heard that Solar PV is modular and scalable and hence we can add the capacity over a period of time.

    In such a scenario how much advance planning is necessary for executing these projects? Also in one of the previous answers you have mentioned 3 months for execution of 1 MW project. Does it include all the steps mentioned herein or only the project execution part?


    1. Dear Mr. Sanket,

      Thank you for your comment and query.

      It is indeed true that Solar PV is modular and scalable. You can start with a small capacity maybe 500 kW or so and add up in parts.

      While the modular nature would enable you to gradually scale up the project capacity, advance planning certainly helps. Primarily the final capacity planned and time schedule of the same would help in appropriately sizing the inverter and planning for structure layout. Modular nature would also enable a company to claim tax benefits over a period of time rather than in one year.

      The timeline mentioned herein is for execution of the project once the Pre-project and DPR are in place.

      Sincerely hope your queries have been answered. You may kindly revert with any further queries.

      Thanking you,
      Enerco Energy Solutions LLP

  4. Dear team,

    We might be interested in a solar power installation for our residential complex and wanted to check for the following details:

    1. what is the capacity required for a residential complex of about 50 households. Other than household connections, we have common area utilities like lifts, basement and corridor lighting, motors and pumps etc.

    2. What kind of installation (off-grid/on-grid) is recommended in such case? What is the approx. difference between the commercials and installation procedure/timeline between the 2 processes.

    3. What are the subsidies available for the installation/procurement etc. Are they available on either of the installation modalities?

    4. What are the operational maintenance activities and how much do they cost?



    1. Dear Mr. Ritesh,

      Thank you for your comment., kindly find below our replies, pointwise :
      1. The capacity requirement would depend on several factors including load details, running pattern etc. One may consider anywhere between 1 kW to 4 kW for a typical apartment. The common area would be over and above this.

      2. Generally a grid-synchronized system is recommended which gives an option of automatic changeover between grid and Solar. Solar power would be used as primary source and balance if any would be taken from the grid.

      3. 30% MNRE subsidy is generally available but is not guaranteed nowadays as the Government is focusing on removal of subsidies. The project is completely viable even in the absence of subsidies.

      4. Minimal O&M is required and the cost is negligible. Primarily the panels would need to be cleaned. The frequency would depend on air quality at the site.

      Please feel free to drop us a mail on solar [at] econserve [dot] in and we will be glad to assist you further.

      Many thanks,
      Enerco Energy Solutions LLP