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Topics Our Renewable Energy Tutors Cover!

Check the list of topics that our renewable energy tutors cover.

Bioenergy (biofuels and biomass)

It is possible to create electricity, heat energy, or transportation fuels using biomass.

Hydrogen-Powered Cells

Hydrogen fuel cells are a clean, dependable, quiet, and effective source of superior electric power. They fuel an electrochemical process that generates electricity with hydrogen, and the only byproducts are water and heat.

Hydropower and other water technologies

Water technology generates electrical or thermal energy.

Wind energy

Electricity production is possible by harnessing the wind with windmills or wind turbines.

Geothermal energy

Geothermal energy, the heat beneath the earth's surface, can generate electricity or heat. All over the world, geothermal heat pumps are an efficient way of heating and cooling buildings.

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Solar systems use the sun's rays to generate heat or electricity. Utility-scale solar power plants are primarily in the Southwest United States.

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Recently Asked Renewable Energy Questions

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Q1: EGR102 - Introduction to Sustainable and Green Energy Technologies Residence Photovoltaic Feasibility Study Grading Value: See Syllabus See Syllabus Due Date: SIZING AND INSTALLING SOLAR ENERGY SYSTEMS: Introduce to the real-world process of designing and installing solar electric systems, which includes the following process: STEP 1: Deciding on the type of system to be installed: Off grid, Grid inter-tied (preferred approach), grid inter-tied with battery back-up (Optional) STEP 2: Estimating current electricity use Consumption analysis: Link building general consumption (A/C, lights, computers....) Peak consumption vs. Average Seasonal variation of consumption vs. Seasonal solar radiations. STEP 3: Estimating the available solar resource at the site Resources analysis: How much kW (solar energy) available O Surface available for PV cells Weather conditions throughout the year, daily sun enlightenment. Transferability of the system Quick overview of other possible renewable resources for (favorable) comparison. Orientation options, possible obstructions STEP 4: Sizing installation ● Available area ● Desired energy production STEP 5: Select equipment components ● PV Modules Inverter ● Mountings or racks Battery system off-grid or back-up) Optional Additional components (wiring, disconnects, etc) STEP 6: Economics Cost analysis: Spring 2024 Equipment and installation costs Estimated price of the set up by certified company Maintenance? How often? Weather hazards risks Compare solar electricity $/watt to FPL $/watt EGR102 - Introduction to Sustainable and Green Energy Technologies Funding: Financing, Pay-back period, return on investment: Rebates and incentives Grants / Donations / Fund raising Manufacturer rebates/ advertising Solar Renewable Energy Credits Opportunities STEP 7: Permitting & Installation STEP 8: Monitoring & Maintenance Spring 2024 EGR102 - Introduction to Sustainable and Green Energy Technologies Home PV Feasibility Format: Narrative Format: Cover Sheet, Table of Contents, Executive Summary, Introduction, Data Collected, Data Analysis, Results, Recommendations, References and Appendix. It should include information for each of the steps (1-8) outlined above. ● ● ● ● ● ● Cover sheet should look profession with an appropriate image, name, date etc... Table of contents must be a standalone sheet Executive summary must be in a letter format addressed to owner summarizes the report section by section, one page should suffice (intro, body and conclusion) Introduction must include problem statement- defining problem to be solved, describe the site, with aerial photo of site showing orientation describe surrounding elements which may pose a shading problem Data Collected: describe input date to include PVWATTS data, Aerial analysis of site with available area for the PV, available rebates, tax incentives renewable energy credits Spring 2024 Data Analysis: show limits of proposed array, location of switch gear, estimate cost, system sizes opportunities Results: size system, PVWATTS calculation, systems size and selection, cut sheets, payback analysis (follow Munro solar power point tables); maintenance Recommendations should summarize the system, include and investment statement- why should the homeowner invest in the project References shall be noted using APA style format convention Appendix to include any supporting information, cut sheets calculations, website ● Appendix shall include "Writing Lab" attendance form O Students not utilizing writing lab must assure that proper grammar is utilized, good sentence structure, clear writing style is maintained, no typo's are present or 10 points will be ducted from final grade. ● The final report narrative shall be emailed to eLearning in PDF format. Times Roman 12 pt Font, 1.5 space Final copy shall be handed in to me. Extra Credit Grading (based on 100% scale): 20 points-narrative report quality: format, grammar, no typos, etc... 40 points- engineering content, shows clear command of pv applications 10 points- report organization 20 points-quality of the report scale of drawings, feasibility, engineering calcs, etc... 10 points- level of report is professional and worthy of investment EGR102 - Introduction to Sustainable and Green Energy Technologies Additional Resources: PV WATTS Calculator: https://pvwatts.nrel.gov/ Solar Estimate Providence Rhode Island area: https://www.solar-estimate.org/residential-solar/solar-panels/rhode- island?aff=4713&cam=45&gclid=CjwKCAjwvNaYBhA3EiwACgndgolwgN- pA6AgYoszYcA_jwXR5R6xFils96ZkyGO7VCONwsIvLHLv7hoCndUQAvD_BwE Video on how to install PV panels: https://www.youtube.com/watch?v=jSaltvrrFZg Solar energy research and development, see the National Renewable energy Laboratory website: http://www.nrel.gov/solar/ Spring 2024 EGR102 - Introduction to Sustainable and Green Energy Technologies ● Collector-Module Sizing Most manufacturers' modules now average about 120 watts for ease of handling at installation Larger 285 W modules are 4 ft by 6 ft, 107 pounds, and require two people to use great care in handling and positioning (our field trailer carries one of these) Hardware must secure module to resist winds of ~130 mph based upon zoning codes Module output should be ~10% larger than calculated to allow for aging and darkening of the cover glass After the first 10% decline, there is little change in peak output EXAMPLE Module Sample Specifications "Siemens Solar SM110": ● Maximum power rating, 110 W; Minimum power rating, 100 W Rated current, 6.3 A; Rated voltage, 17.9 V Short circuit current, 6.9 A; open circuit voltage, 21.7 V Roof-top Solar Array Computations Spring 2024 Find the south-facing roof area; say 20 ft * 40 ft = 800 ft² Assume 120 Wp solar modules are 26 inches by 52 inches; 9.4 ft²/120 watt; 12.78 W/ft² Assume 90% of area can be covered, 720 ft², ~9202 W and that there are 5.5 effective hours of sun/day; 51 kWh/day The south-facing modules are tilted south to the latitude angle 76 modules would fit the area, but 44 would provide an average home with 30 kWh/day and cost ~$17600 for modules alone, ~one mile of powerlineSee Answer
Q2:2. Then we want to create wind speed distribution function plot. For that, you need to decide on how many "bins" your distribution will have. First, you find minimum and maximum values from your data set. You should choose your own number of bins - this here is just an example! Let's say I want 20 bins. Then my bin step size is (max-min)/20 = x mph. So, I will have first bin with wind speeds from 0 to x mph, second bin with wind speeds from x mph to 2x mph, etc, etc, finally 20th bin with wind speeds from 19x mph to 20x mph. Then you need to count number of occurrences of wind speeds within each bin, i.e. how many times we measured wind speed that belongs into each bin. These numbers of occurrences, when plotted, will be your wind speed distribution plot. You can count the number of occurrences by using MS Excel functions or you can sort the data and then visually see the boundaries of your bin sets, any way you like it. Part 2: 40% of the project total grade Finally, find the average wind speed.See Answer
Q3:Topic -- Lithium Ion Batteries 1) 1000 word limit assignment. Professor demand Quality work. 2) No more than 10-15% plagiarism on Turnitin. 3) No Al detection, this should appear to be a human text. 4) only "Harvard referencing style" throughout section/in-text/paragraph and Quote sources only from academic database: Science Direct, IEEE Xplore, Google Scholar.See Answer
Q4: Higher Nationals BTEC Assignment Brief - BTEC (RQF) HND Electrical & Electronic / Mechanical Engineering 603/0451/0 Student Name /ID Number Unit Number and Title Academic Year Unit Assessor Assignment Title Issue Date Formative Date Submission Date Unit 35: Professional Engineering Management L/615/1503 2023-2024 Praneeta Phadke 1 - Energy Vista Group (EVG) 20/5/2024 11/6/2024 25/6/2024 IV Name & Date Chris Parker 18/4/2024 Submission Format: This submission is in the form of; A written report for developing an engineering services delivery plan 1,000 words, to include; 500 。 completed project proposal (template in Appendix 2) O an evaluation of the plan and any risks or challenges O an evaluation of management tools to create the plan and evaluate risk Unit Learning Outcomes: LO1 Evaluate the risk evaluation theories and practices associated with the management of projects for the production of current and developing technology. LO2 Produce an engineering services delivery plan that meets the requirements of a sector-specific organisation. Scenario, Assignment Brief and Guidance: Scenario You are an Electro-Mechanical Engineer, working for Energy Vista Group (EVG), a company that designs and supplies renewable energy systems. The company has a new managing director who wants your team to work on an Efficient Home Renewable Energy Systems Project, to let clients enjoy digitalization of electric power using real-time analysis. Your director wants you to develop a digital power system that monitors and controls vital aspects of the network, such as status of equipment and diagnosing faults, a virtual representation, complete with interconnected sub-systems and device information. For this, your team will be working on various renewable energy projects depending on your skills and expertise, such as Solar Electric Systems Small Wind turbine systems - • Hybrid Solar and Wind turbine systems Mini hydropower systems Digitalization Definition: Digitalisation means "Transforming business processes by leveraging digital technologies, ultimately resulting in opportunities for efficiencies and increased revenue". "Together, digitalisation and sustainability are the two most powerful forces that we are going to see in manufacturing over the next decade." The Institution of Engineering (IET) and Technology, 2022 "The increasing digitalization of all aspects of engineering requires the up- skilling and re-skilling of engineers and technicians." - Royal Academy of Engineering, UK Assignment Brief and Guidance Produce an engineering services delivery plan for the design changes that you undertook for your digitalised system (using the design from your Research Project). This plan will explain how your new design will be introduced into production, how it will be supported and how it will help to meet the new managing director's objectives. Your report must; • Explain the input needed from different departments, both engineering and non-engineering, to implement your new design • Complete a Project proposal (see Appendix 2), that must be agreed with your tutor. Identify and evaluate how your plan will contribute to meeting company objectives of improving quality, reducing costs and digitalizing the system Discuss the engineering management tools you needed to create your plan Critically evaluate the plan for risks or events that could lead to failure, and how to avoid or overcome them. NOTE: Important and useful guidance has been written to help you with this activity, which can be found at the end of this assignment brief (see Appendix 1). Learning Outcomes and Assessment Criteria: Learning Outcome 1 Evaluate the risk evaluation theories and practices associated with the management of projects for the production of current and developing technology. 2 Produce an engineering services delivery plan that meets the requirements of a sector-specific organisation. Pass P1 Evaluate the risk evaluation theories and practices associated with the management of engineering projects P2 Assess elements and issues that impact the successful management of engineering activities P3 Develop an engineering services delivery plan applying the appropriate sector-specific requirements P4 Determine the engineering management tools needed for designing an engineering services delivery plan Merit M1 Critically evaluate the main elements and issues that impact the successful management of engineering activities M2 Evaluate how each step of the delivery plan developed meets the requirements of a sector specific organisation Distinction D1 Specify and analyse the challenges encountered when meeting the requirements for successfully managing engineering activities and make justified recommendations to overcome these challenges D2 Critically evaluate contingencies that might prevent the delivery plan meeting the requirements of a sector-specific organisation APPENDIX 1: Guidance Guidance for Students You should read this information before starting to define your proposed area of focus and refer to it as you complete the work for this unit. • Develop a methodical proposal (see below for an example of a proposal brief). As you will need to include an engineering service/s delivery plan as an integral part of your submission, you should be simultaneously considering the impact on stakeholders and what performance measures you envisage employing. • Select a topic of personal interest in your chosen specialism. The topic chosen should allow a sufficient and suitable degree of research through the existence of adequate background information. You will need to ensure it relates to the theme set by Pearson for the relevant year of study. • • A good proposal should meet the following criteria: о Covers an area with sufficient source material. ○ Extends a current line of learning that will lend itself to further rigorous scrutiny. There should be sufficient breadth to allow you to demonstrate the knowledge and skills you have learned within the unit, but it should not be unwieldy so that you are unlikely to be able to see it through to completion. Agree both your proposal and the format that your engineering service/s delivery plan will take with your tutor before beginning the main body of your research. • Conduct your underpinning background research as outlined in the proposal agreed with your tutor. • Communicate your findings and proposals in a manner appropriate to your audience. You will also be expected to justify any appropriate recommendations that you make. • You must complete a coherent engineering service/s delivery plan in order to complete your work for this unit. You will need to reflect on your own performance at the end of the unit with the inclusion of self-evaluation by means of reflective practice (see following section)See Answer
Q5: Homework 5 - Transportation Energy Technology and Policy ISYE/PUBP 6701 1. Lithium-ion batteries have an energy density of about 0.25 kWh per kilogram. The efficiency of a Ford F-150 Lightning electric pickup truck is about 2 miles per kWh. With a range of 230 miles, how much does the battery pack weigh? Express your answer in both kilograms and in pounds. 2. A Boeing 747 weighs 200 metric tons and uses about 5 million MJ on an international 10-hour flight. If this energy were supplied by lithium-ion batteries with an energy density of 0.25 kWh per kilogram, how much would the batteries add to the weight of the airplane? Express your answer in metric tons. 3. Costs for a battery-electric delivery truck and a diesel-fueled delivery truck are shown in the table below. Assume that both trucks are driven 50 miles for each of 300 days per year. a. What is the Operating Cost per mile of driving each truck, including only the Energy supply cost and the Maintenance Cost? (Put answers in the table.) b. Assume that both trucks are used for 10 years and use a discount rate of 7%. What is the present value of the Total Cost of Ownership of each truck, including all costs shown in the table? (Put answers in the table.) c. The relative cost of electric trucks versus diesel trucks depends on many factors. For the set of parameters in parts a and b, the present value of the total cost of ownership is larger for the electric truck than for the diesel truck. While truck buyers may not be able to control the purchase price, they may vary in terms of their discount rate (e.g. loan rate that is available for truck purchases), and some may be able to charge their vehicles at a lower cost by using low night-time rates for electric vehicle charging. Holding all other variables constant, at what discount rate would the electric truck and diesel truck have equal total cost of ownership? d. Similarly, holding all other variables constant, at what average electricity price would the electric truck and diesel truck have equal total cost of ownership? e. If purchase of the electric truck qualified for a $7500 rebate, what would be the effective cost of carbon reductions? Express this as $ per metric ton of CO2e avoided. Purchase Energy Price ($) Use Energy Supply Cost Maintenance GHG Electric Operating Total cost Cost $/mile emissions Vehicle (kg CO2e) Charging Cost ($/mile) Station of ownership ($) Electric 90,000 Truck 1.3 kWh/mile $0.1/kWh 0.18 0.4 kg/kWh $5000 Diesel 60,000 Truck 8 miles per gallon $3.00/gallon 0.22 12 0 kg/gallonSee Answer
Q6: 13:09 Assignment details CHE3101: Chemical Reactor Design and Process Integration (2231... 1. What are the principle societal, economic and technical drivers for increased use of renewable energy resources? [15 MARKS] 2. Explain the key differences in the demands on technologies to deliver energy storage and control for power and energy management applications 3. Select three electrochemical energy storage technologies that allow intermittent renewable energy sources to be integrated into the electrical distribution grid? For each, identify two positive one advantages compared to the others, and one perceived disadvantage of the technology. ◄ Previous 58 [45 MARKS] 4. Of all the technologies reviewed, which do you consider most likely to become dominant over the next 5-10 years? Justify your answer. Dashboard Submit assignment Calendar [20 MARKS] To-do [20 MARKS] Notifications Next ► 29 Inbox 13:10 Assignment details CHE3101: Chemical Reactor Design and Process Integration (2231... Assignment CHE3101 - Chemical Reactor Design and Process Integration Resources in the Chemicals Industry Spring Semester 2024 Use your lecture notes and the three resources below to answer the following questions. submissions must be uploaded in Acrobat pdf format or they will not be marked. Late submission will be penalised in accordance with University regulations. Resources for this assignment are lecture notes and the documents provided below: B Dunn et al., Science, 2011, DOI: 10.1126/science.1212741 . Lui et al., Adv. Functional Mater., 2013, DOI: 10.1002/adfm.201200690 • Battery Energy Storage for Smart Grid Applications, EUROBAT, 2013 58 ◄ Previous Dashboard Submit assignment Calendar To-do Notifications Next ► 29 InboxSee Answer
Q7:Introduction: The technique used in this proj arch above the dug tunnels by settling while preserving the 40 Similarities and Differences: There are no similarities. Challenges and solutions: Challenge: Ground movement c Solution: develop an accurate re successful in reducing the impa changed the properties of the gr Challenge: The protection of the field of impact. Solution: apply suitable protecti Technology: Legacy:See Answer
Q8:1. A land based wind turbine has a has hub height of 150 meters. The weight of the machine head and rotor is 200 metric tons. Other assumptions you can make a. Operating range of rotor 4 to 15 RPM b. 350 MPa yield strength of steel c. Young's modulus of 210 GPa d. Tower outside Diameter of 5.5m, at the base tapering to 3.0 m at the top. e. Wall thickness = 25mm, made of steel f. This is an upwind rotor Estimate the following: b. a. The static (0 RPM) stress at the bottom of the tower including the tower weight. If the rotor thrust load is 50,000 N at a particular operating regime, what is net compressive stress on the downwind side of the tower. c. If the tower natural frequency can be expressed as 3EI fo where I=(Doutside - Dinside) 277 (0.23mtower+mnacelle) L³ Generate a simple Campbell diagram with 1 per and 3 per revolution lines and confirm that the turbine will not operate in an area of concern with resonance.See Answer
Q9:Question 3 3 The circuit connecting a group of modules together and to the common connection point of the DC system is referred to as: PV power source PV source circuit PV output circuit Comment None of the above verify- 171 pisSee Answer
Q10:Question 2 The circuit connecting the PV power source to the rest of the system is referred to a PV power source PV source circuit PV output circuit Comment None of the aboveSee Answer
Q11:Question 1 An array or collection of arrays that generates DC power is referred to as: PV power source PV source circuit PV output circuit None of the above 1/1 ptsSee Answer
Q12:5. Using the Lift and Drag curves for the NACA 4412 airfoils included with this assignment, calculate the lift L and drag D forces on a NACA 0012 airfoil with the following assumptions. (Note: the C₂ curve passes through zero.) Standard roughness at Re = 3 million Operating at 8 degrees angle of attack Relative wind of 12 m/s, Chord, c, of 3.5 meter Span, dr, of 5 meters Air density of 1.10 kg/m3.See Answer
Q13:2. Regarding the derivation of the ideal HAWT with wake rotation using momentum theory a. What is the definition of the angular induction factor? b. Show the two key equations that are equated in derivation of Cp when including wake rotation. c. Use the equation derived for Cp,max (Manwell Eqn 3.40) and calculate the Cp,max for a blade operating at a tip speed ratio of 4.0. Show the calculation methodology.See Answer
Q14:Deliverables: 1) Need to reply on both the posts (attached) 2)1-1.5 pages (for both) 3) Double spaced 4) APASee Answer
Q15:Question 13 You are purchasing solar PV modules, you noticed STC and NOCT specification are listed differently. To make things more interesting, you found out PTC test standards are different as well!! What is the reason? (choose all that apply): PTC simulates how close to the real field operating conditions the modules are NOCT and STC specify the operating temperature differently ✔PTC, NOCT and STC can be used interchangeably so numbers don't count STC is the only standard we should use 0/1 pts Need final answers for all the answersSee Answer
Q16:ct Question 12 Blocking diode is used to: Blocks modules from operating at short circuit Blocks over voltage when modules are shaded Protect PV string from acting like a load for other parallel strings when modules are shaded in that string All of the above Need final answers for all the answers 0/1 pts 4See Answer
Q17:Question 11 The bypass diode is installed on PV module so that: Current always flows through it to prevent cell damage Current flows through it once a day when voltage across the modules equals Zero Cells can be shaded without any damage so this diode is almost never used 0/1 pts Provides alternative path for current to flow when cells are shaded to prevent cell damage when module is shadedSee Answer
Q18:Question 8 You have the choice to design PV system in one of the following cities: Denver, CO (High irradiance with Low temperature) Phoenix, AZ (High irradiance with high temperature) Seattle, WA (Low irradiance with average temperature) Which city will offer ideal operating condition (better energy yield): Seattle, WA Phoenix, AZ Denver, CO They are all the same 27 0/1 ptsSee Answer
Q19:Incorrect Question 7 On the current-voltage characteristics of PV module, the Voltage changes with: ⒸHigher irradiance and temperature Lower irradiance and temperature The operating point corresponding to the load requirements All of the above 0/1 ptsSee Answer
Q20:ct Question 5 On the power-voltage characteristics of PV module, the highest power occurs: At maximum power point condition At short circuit condition At open circuit condition None of the above 27 0/1 ptsSee Answer

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TutorBin believes that distance should never be a barrier to learning. Over 500000+ orders and 100000+ happy customers explain TutorBin has become the name that keeps learning fun in the UK, USA, Canada, Australia, Singapore, and UAE.