Duration of the online course: 29 hours and 51 minutes
New
Build in-demand skills in solar, wind and biomass systems with a free online engineering course—learn practical design basics, calculations and energy conversion.
In this free course, learn about
Overview of renewable energy conversion: solar thermal, biomass routes, wind turbine power generation
Solar radiation basics: components, incidence angle on tilted collectors, hourly diffuse radiation estimation
Non-concentrating solar collectors: types, useful heat gain, selective coatings, (τα) for beam radiation
Collector performance calculations: outlet temperature, mass flow effects, and practice-based sizing methods
Concentrating (parabolic) collectors: working, advantages, and key disadvantages/limitations
Thermal energy storage concepts including solar ponds: definition, function, and purpose
Energy resource classification and foundational terminology, including the origin of the term 'energy'
Biomass composition/characterization: cellulose-rich biomass, properties, and why characterization matters
Fuel energy metrics: Higher vs Lower Heating Value (HHV vs LHV) and implications in biomass systems
Biomass conversion routes: biochemical vs thermochemical; differences among combustion, pyrolysis, gasification
Biogas technology: production process, plant types, fixed-dome advantages, feedstocks, and sizing calculations
Bioethanol production basics: substrate bioconversion and sugarcane vs starch advantages
Thermochemical processing details: torrefaction temperature range, fast pyrolysis objective, pellet advantages
Wind energy fundamentals: source, turbine terms, Betz limit, tip speed ratio, torque at max efficiency
About the free online course
Renewable energy projects succeed when engineering decisions are backed by solid fundamentals, realistic assumptions, and the ability to translate natural resources into usable heat and power. This free online course helps you build that foundation across three major renewable pathways: solar thermal energy, biomass conversion, and wind energy. Designed within Professional Skills and grounded in Mechanical and Industrial Basics, it connects theory to the kind of calculations and design thinking used in real-world applications.
You will learn how solar radiation behaves, why orientation and angle of incidence matter, and how different collector types change performance. Instead of stopping at concepts, the course repeatedly reinforces understanding through worked-style practice that develops confidence with energy balances, useful heat gain, temperature rise, and key performance parameters. You will also explore concentrating approaches such as parabolic collectors, along with practical limitations and trade-offs, then move into thermal energy storage ideas that help renewable systems deliver energy more reliably.
On the biomass side, you will build a clear picture of how composition and properties influence conversion choices, including how heating values are interpreted for fuels. The course explains biochemical and thermochemical routes in a way that supports engineering judgment: when anaerobic digestion makes sense, how biogas systems are categorized, and why feedstock selection affects output. You will also examine combustion, gasification, torrefaction, liquefaction, and pyrolysis, with problem-solving that ties process parameters to usable energy, daily requirements, and practical system sizing.
Wind energy rounds out the curriculum by clarifying turbine terminology, basic theory, and how power extraction is limited by fundamental principles. You will connect concepts such as torque and tip speed ratio to performance and efficiency, building intuition for how turbines are analyzed and compared. By the end, you will be able to approach renewable energy engineering problems with a structured method, a stronger quantitative toolkit, and the vocabulary needed to communicate confidently in clean-energy settings.
Course content
Video class: Renewable Energy Engineering: Solar, Wind and Biomass Energy Systems [Intro Video]13m
Video class: Lec 1 : Solar Energy: An overview of thermal applications1h09m
Exercise: What types of energy conversion techniques are covered in the renewable energy course?
Video class: Lec 2 : Solar radiation1h04m
Exercise: What is the major difference between non-concentrating and concentrating solar collectors?
Video class: Lec 3 : Practice problems: Part I55m
Exercise: What is the angle of incidence on April 1st for a tilted flat plate collector?
Video class: Lec 4 : Practice problems: Part II28m
Exercise: What is the proportionality constant value proposed by Leon and Jordaan for calculating hourly diffusive radiation?
Video class: Lec 5 : Non-concentrating solar collectors: Part I1h03m
Exercise: Which of the following are non-concentrating solar collectors?
Video class: Lec 6 : Non-concentrating solar collectors: Part II28m
Exercise: What parameter defines the effective useful energy heat gain in a solar collector?
Video class: Lec 7 : Non-concentrating solar collectors: Part III51m
Exercise: What role does the selective coating play in solar collectors?
Video class: Lec 8 : Practice problems: Part I34m
Video class: Lec 9 : Practice problems: Part II50m
Exercise: What is the transmissivity absorptivity product for beam radiation?
Video class: Lec 10 : Practice problems: Part III22m
Exercise: What is the outlet temperature when the mass flow rate is 75 kg per hour and specific heat capacity is 4180 J/kg°C, given q_u is 1054 watts?
Video class: Lec 11 : Parabolic solar collectors1h00m
Exercise: What is a key disadvantage of concentrating solar collectors?
Video class: Lec 12 : Practice problems57m
Exercise: What is the main advantage of using concentrating collectors in solar energy systems?
Video class: Lec 13 : Thermal energy storage systems: Part I44m
Exercise: What is the function of a solar pond in renewable energy systems?
Video class: Lec 14 : Thermal energy storage systems: Part II22m
Exercise: What is a solar pond and its main purpose?
Video class: Lec 15 : Solar energy utilization methods57m
Exercise: Which renewable energy method is not discussed in this course?
Video class: Lec 16 : Classification of energy resources33m
Exercise: What is the origin of the term 'energy'?
Video class: Lec 17 : Broad classification and compositional analysis48m
Exercise: Which type of biomass is primarily composed of cellulose?
Video class: Lec 18 : Characteristics and properties of biomass41m
Exercise: What is the importance of biomass characterization before conversion processes?
Video class: Lec 19 : Properties and structural components of biomass39m
Exercise: What is the primary difference between Higher Heating Value (HHV) and Lower Heating Value (LHV) of a fuel?
Video class: Lec 20 : Biomass residues and energy conversion routes47m
Exercise: What is emphasized as important for selecting biomass conversion technologies?
Video class: Lec 21 : Utilisation of biomass through bio-chemical and thermo-chemical routes38m
Exercise: What differentiates pyrolysis from combustion?
Video class: Lec 22 : Conversion mechanism of biomass to biogas and its properties41m
Exercise: What is the correct process for biogas production?
Video class: Lec 23 : Classification of biogas plants46m
Exercise: What is a major advantage of the fixed dome type biogas plant?
Video class: Lec 24 : Practice problems - I37m
Exercise: What are the feedstock categories for biogas production?
Video class: Lec 25 : Practice problems - II41m
Exercise: What is the thermal power available from the digester daily?
Video class: Lec 26 : Practice problems - III23m
Exercise: Calculate the total daily biogas requirement for a remote school.
Video class: Lec 27 : Bioconversion of substrates into alcohol54m
Exercise: What is the major advantage of sugarcane over starch materials for ethanol production?
Video class: Lec 28 : Thermo-chemical conversion, torrefaction and combustion processes53m
Exercise: Which thermochemical process requires no external oxygen supply?
Video class: Lec 29 : Thermo-chemical conversion of biomass to solid, liquid and gaseous fuels56m
Exercise: What is the key temperature range for the torrefaction process to avoid extensive devolatilization?
Video class: Lec 30: Gasification process48m
Exercise: What is the main advantage of using densified pellets over firewood?
Video class: Lec 31 : Thermo-chemical conversion processes: pyrolysis, liquefaction and conversion processes47m
Exercise: What is the primary objective of fast pyrolysis?
Video class: Lec 32 : Practice problems - I34m
Exercise: What is the purpose of a biomass gasifier in a dual fuel mode engine?
Video class: Lec 33 : Practice problems - II41m
Exercise: What is the correct air to fuel ratio in a combustion process involving ethane with 50% excess air?
Video class: Lec 34 : Turbine terms, types and theories: Part I1h10m
Exercise: What is the ultimate source of wind energy?
Video class: Lec 35 : Turbine terms, types and theories: Part II1h07m
Exercise: What is the theoretical maximum efficiency for converting wind energy into useful power?
Video class: Lec 36: Characteristics and Power Generation from Wind Energy: Part I1h11m
Exercise: What is the theoretical maximum efficiency for a wind turbine as described in Betz's Law?
Video class: Lec 37: Characteristics and Power Generation from Wind Energy: Part II49m
Exercise: Which formula is used to calculate the torque at maximum efficiency for a wind turbine?
Video class: Lec 38: Practice problems29m
Exercise: What is the tip speed ratio (λ) used for in wind energy calculations?
This free course includes:
29 hours and 51 minutes of online video course
Digital certificate of course completion (Free)
Exercises to train your knowledge
100% free, from content to certificate
What is the difference between non-concentrating and concentrating solar collectors?
Non-concentrating collectors absorb sunlight over the same area as the absorber, while concentrating collectors use mirrors or lenses to focus sunlight onto a smaller receiver for higher temperatures.
What renewable energy systems are covered in this Renewable Energy Engineering course?
The course covers solar thermal collectors and storage, biomass characterization and conversion, biogas and biofuels, gasification and pyrolysis, plus wind turbine theory and power generation.
What is the maximum theoretical efficiency of a wind turbine under Betz's Law?
Betz's Law sets the maximum theoretical wind-power extraction efficiency at 59.3% of the available kinetic energy in the wind.
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