Cleantech Snapshot – Small Scale CSP - India Renewable Energy Consulting – Solar, Biomass, Wind, Cleantech
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EAI presents Cleantech Snapshots: a quick summary of some of the most interesting and innovative areas in clean technology that will drive the sustainability movement in future.

This snapshot focuses on Small Scale CSP. Within this page you will find


  • Concentrating solar power (CSP) that uses the heat of sunlight to run a turbine and generate electricity, has one key drawback – its minimum size has to be in tens of MW
  • However, in the recent past, there have been significant advancements in the growth of small scale CSPs that could run at even 100s of kWs
  • High costs and uncertainties in technical feasibility are still challenges for small scale CSP. If overcome, small scale CSP has a promising future in developing countries
  • Small scale modular CSP plants can offer market solutions in industrial applications and grid-limited markets
  • Modular plants can provide multiple benefits as they can be built in phases, the installation costs are lower as no construction is involved and standardization can reduce the technology risk

Small scale CSPSmall scale CSP(Image source)


Technologies used

  • Parabolic dish – non tracking
  • Parabolic dish – tracking
  • Parabolic trough
  • Fresnel reflector


  • Less complex operation
  • Works at relatively lower temperatures
  • Off grid systems can replace more expensive solutions e.g., diesel engines


  • Industrial process heating
  • Electric power generation
  • Domestic hot water


  • Lower efficiencies
  • Suitable heat engines not available
  • Higher planning and investment costs

About Narasimhan Santhanam (Narsi)

Narsi, a Director at EAI, Co-founded one of India's first climate tech consulting firm in 2008.

Since then, he has assisted over 250 Indian and International firms, across many climate tech domain Solar, Bio-energy, Green hydrogen, E-Mobility, Green Chemicals.

Narsi works closely with senior and top management corporates and helps then devise strategy and go-to-market plans to benefit from the fast growing Indian Climate tech market.

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