Two day Technical Workshop on Solar Water Heater Systems

For successful implementation of any program, the field employees play a crucial role. We propose to conduct tailored trainings to empower the field employees in selection, design, procurement, installation, commissioning, and O&M for SWH projects.

1. Key Takeaways

  • The course will familiarize participants with industry history, the distribution chain, safe practices, and national codes and standards pertaining to SWH systems. 

  • Introduction to solar geometry as well as resource assessment methodology for evaluating the potential for a given site.

  • Participants will explore the different types of collectors, systems, components, and materials used in solar heating systems, recognize the various types of residential solar hot water heating systems and components currently in use, distinguish between solar system freeze protection options, properly design and size residential solar hot water heating systems, assist in the planning and installation of solar collectors and components.

  • The course will also examine the techniques and tools used for installing solar heating equipment, understand the types of codes and standards that apply to the proper installation of solar heating systems.

  • Course will also disseminate participants about the types of permits, warranties, and the customer relations required for completion of the overall solar project, assist in the servicing of common solar assisted heating problems and determine their appropriate applications.

  • Finally, Participants will learn how to conduct site assessments, analyze hot water loads, develop accurate system sizing and project cost estimates, and identify the economic and non-economic benefits of a solar heating system.

2. Target Audience

Around 30-35, comprising of technicians, installers, plumbers, engineers, architects, supervisory staff from ministries, consumer/industry representatives, caretakers/facility managers etc.

3.  Dignitaries and Speakers


Designation and Qualification  

Mr. Mewang Gyeltshen

Director, DRE

Mr. Anand Wagh

In-charge of Centre for Solar Energy, WISE

15+ years experience with MBA (Finance), BE, Certified Energy Manager (Bureau of Energy Efficiency, India)

Mr H. N. Adhikari

Managing Director, APECS
30+ years of experience with MS (Engineering), PG Diploma (Construction Management)

Mr. Satadru Chakraborty

Associate Fellow, Centre for Regulation and Policy, WISE
12+ years experience with M.Phil. (Economics) ,M.Sc. (Economics)

Mr. Vishwesh Pavnaskar

Sr. Research Associate, WISE
5+ years experience with M.Tech. (Energy Studies), BE (Mechanical), Certified Energy Auditor and Manager (Bureau of Energy Efficiency, India)

Ms. Neha Tiple

Research Associate, WISE
5+ years experience with M.tech. (Renewable Energy), BE

4.   Program Schedule and Download Presentations



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Day 1, Wednesday, 6th June 2018 at Conference/Training Hall, DRE, Thimphu







  • Welcome Address

  • Chief Guest Address

  • Introductory Remarks



Mr. Anand Wagh

Mr. Mewang Gyeltshen

Mr. H. N. Adhikari


General overview of global energy scenario

  • Overview of Global Energy Scenario with focus on RE share

  • Overview of Bhutan Energy Scenario

  • Solar Water Heating – Worldwide & Bhutan

  • Bhutan- Topography and major Climatic zones

Mr. Satadru Chakraborty

Mr. Vishwesh Pavnaskar


Discussion over tea




Basic Solar Thermal Fundamentals

  • Basic solar geometry pertaining to SWH

  • Technology selection

  • Working Principle

  • Components of SWH System

  • Applications

  • Detailed case study covering all technical & financial aspects

Mr. Vishwesh Pavnaskar


Networking over Lunch




Prefeasibility study – session 1

  • Hot Water Demand Assessment

  • Site & Resource Assessment

  • SWH System sizing

  • Technology selection and details of appropriate technology for Bhutan

Mr. Anand Wagh

Ms. Neha Tiple


Tea break




Component details- session 1

  • Space Availability

  • Sub – Zero Areas

  • Water quality

  • System Selection (FPC/ETC)

  • Orientation & Slope of Collectors

  • Type of Flow System

  • Insulation

  • Back up heating

  • Over Head Cold Water Tank

Mr. Vishwesh Pavnaskar

Ms. Neha Tiple


Open Discussion (Q & A)




Day 2, Thursday, 7th June 2018, at Conference/Training Hall, DRE, Thimphu



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Component details- session  2

  • Vent pipe

  • Circulation Pump

  • Non Return Valve

  • Gate Valve & Drain valve

  • Control Unit with necessary Sensors

  • Cold Water Inlet line

  • Hot water pipeline

  • Internal Connections

Ms. Neha Tiple

11:00 – 11:30

Tea Break




Overview of design and installation guidelines

  • Design & Specification of the SWH System

  • Design and Installation guidelines

  • Best practices adopted worldwide in SWH Operation & Maintenance

  • Integration of SWHS in existing structure – architectural perspective

  • Demonstration using Software for design –TRNYSYS/ METEONORM/PVGIS or any other

Mr. Vishwesh Pavnaskar

Mr. H. N. Adhikari


Networking over Lunch




Financial analysis

  • Total Cost of the System

  • Estimation of savings

  • Payback Calculation

  • Sample Financial feasibility demonstration using software RETSCREEN/WISE model

Mr. Satadru Chakraborty


Tea break




Overview of  Operation & Maintenance

  • 2-3 Case studies on different technology systems in different climatic zones

  • A brief on common failures, retrofitting and refurbishing (Trouble shooting)

Mr. Anand Wagh

Day 3, Friday, 8h June 2018

09:00- 14:00

Site Visit