### Fast 50: Content is King

This quarter's Fast 50 reports on the increase of writing jobs, app development, video production, and more.

Renewable Energy Design
Hire Renewable Energy Design Professionals

We are setting up an animal care centre where we want to set up ALL renewable energy options. thanks

$697
(Avg Bid)

From the wind data select the right turbine size for the project, all the data is provided

$658
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Hi, please ***Read Carefully*** We need engineering company or engineering individual or engineering consultant can design, build and assemble for us something like appear in the links below: Flywheel-Kinetic [url removed, login to view] [url removed, login to view] -or- Magnetic Generator [url removed, login to view] Yes, can be an hybrid. What I mean for "Hybrid" is start with a little bit of gasoline and then keep working with the Kinetic-Flywheel Magnet Energy Generator. More examples here: [url removed, login to view] Requirements: 60 Hz up to 230V 5KW at least 55 db (max.) 180 lbs. max. weight and can works continuously for up to 120 hours ***We need a Clean Job, a Professional Grade Job Please! ***We need the entire job done in 60 business day. I will take the person with the most interesting bid content, reviews and $ offer. Yes, help us to bring this idea to the real world and dare thermodynamic laws. This is one of the few phase of this project, we will have more jobs and pages if this project is successfully accomplished. Suggestions are welcome, questions are welcome. Thanks and happy bidding!

$951
(Avg Bid)

The company is Lumin Solar Technologies - www.luminsolarpower.com. We are looking for a residential solar designer that can do a solar sales proposal and design in Aurora solar design software. We also need a designer that can do proposals and designs for large commercial and agricultural.

$433
(Avg Bid)

ability to carry out a study of potential low carbon/renewable energy technologies for a proposed new-build non-domestic building

$456
(Avg Bid)

wind turbine with energy storage system (Psim), i need someone to make correct values for that model and accurate code for the C block for the required duty cycle , with explanation of what is done .

$61
(Avg Bid)

Project for Andrei K.
Ended

Hi Andrei K., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

$37
(Avg Bid)

Feasibility of a Energy power plant generator by RDF and waste and increacing the efficiency of the plant, economic viability and CO2 emission compration

$206
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Simply put, the goal is to heat a standard hot water tank with solar PV. To be able to help me you'll need to understand (among other things): DC power and loads, heater resistances and solar PV optimization (resistance as it relates to fluctuating PV voltage), and Tigo DC optimizers. Please note this project v1.0 is already working and has been working for over a year, I just know it can work better. This next phase involves increasing the performance as well as increasing the safety/control aspect of it (ie: it currently has no means to automagically shut itself off). The 6-panel array produces 1,260W @STC (see attached PV spec sheet for Vmp Imp and be sure to refer to specs for the 210W model). Each panel in the array has Tigo Optimizers attached to it. Under normal conditions on an average day I'm seeing power production anywhere from 500W to 1kW with sun, depending on the season and the weather conditions of course. Each PV panel plugs into it's own Tigo optimizer (so there are 6, one for each panel), and then all those optimizers are wired in series and that series terminates in a weather tight box (2 wires, one positive and one negative) where it connects to buried TECK90 #10 AWG cable (conductors are stranded copper, TECK is rated for 600V). This underground cable runs approx 150 ft back to the house. In the house it terminates inside a large metal box (nice and big, was once used to hold a simple 6"x6" PCB MOSFET setup which I can tell you more about) where it connects to #14 AWG (solid copper conductors). That #14 travels less than 8 ft with the two wires terminating onto the bottom heating element of a standard run-of-the-mill north american hot water heater. The water heater thermostat has been bypassed since they only work with AC, and this is DC. This tank is a pre-heater and is one of two heating tanks in the house, the second and final tank is a typical gas heated tank. There are 4 plumbing valves that allow me to isolate one of the tanks for the house hot water supply. The Tigo aspect of the system is of great assistance because not only does it maximize each PV panel, it also provides me with technical data and analysis tools via their monitoring portal website. I can give you access to this no problem, you will see data (power, volts, current) for both live data as well as the past year of graphed data. My goal is to study the performance shortcomings or "blips" that I see on the Tigo portal. Secondly, to increase the safety/controlling aspect of it. The "blips" are either 1) not real, or 2) are how the Tigo's respond when connected directly to a DC load. I notice on the Tigo portal that although it is working, random panels seems to fall out and lose 20% power and I wonder if I'm missing something in my design (a resistor, a capacitor?) to smooth things out. Anyways, diagnosis is required. And less important for this phase of the project, the safety aspect -- the water heater has a pressure release valve on it so technically there is some protection if it boils, but I'd like you to suggest some kind of component that's not too expensive to help with this. Basically to shut things down if the tank gets hot enough. Tigo already has a way for the MMU to communicate with the optimizers to tell them to shut themselves off, but at the moment it is human initiated as the only way to do it is to press the red "PV-SAFE OFF" button on the MMU. Any suggestions on this are appreciated. Or maybe a DC relay is the way to go, but they're expensive. In conclusion it is working and on good days the 60 gallon tank will go from cold to over 100 deg F, so the proof of concept is done and it works. I'm asking for your help to make it better. Your experience and knowledge of electrical theory and components will improve this and help me get to the next level. No tinfoil hats allowed LOL.

$299
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Local

i need a wind turbine model with energy storage system in PSIM simulator with an explanation what for what is that model, for my personal knowledge .

$38
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Energy power plant generator by RDF and waste

$228
(Avg Bid)

we are looking for a sales person who can do sales for Solar system around KSA.

$623
(Avg Bid)

i need a working model of power generation system with wind turbine suppoerted by energy storage system. In (PSIM) software simulator.

$34
(Avg Bid)

Hey people, go through attached before bidding. This is an electrical circuit of solar cell. The circuit has been translated into set of mathematical equations which are non-linear. There are about 15 equations with 15 unknowns. Numerical method on MATLAB may be implemented to solve these equations. I need some guy who can plot Current-Voltage (I-V) curve. Current (I) needs to be calculated from mathematical model while Voltage (V) can be taken an array of 100 points. 2. And he needs to get these: reverse saturation current (Io), ideality factor (a), series resistance (Rs), shunt resistance (Rsh). Images have been uploaded which show values of these parameters at reference (REF) or standard test conditions (STC) have been provided. One image is uploaded to compare final values. All needs to be done for 2-a-Si only.

$43
(Avg Bid)

Hey people, go through attached before bidding. This is an electrical circuit of solar cell. The circuit has been translated into set of mathematical equations which are non-linear. There are about 15 equations with 15 unknowns. Numerical method on MATLAB may be implemented to solve these equations. I need some guy who can plot Current-Voltage (I-V) curve. Current (I) needs to be calculated from mathematical model while Voltage (V) can be taken an array of 100 points. 2. And he needs to get these: reverse saturation current (Io), ideality factor (a), series resistance (Rs), shunt resistance (Rsh). Images have been uploaded which show values of these parameters at reference (REF) or standard test conditions (STC) have been provided. One image is uploaded to compare final values. All needs to be done for 2-a-Si only.

$28
(Avg Bid)

Hey people, go through attached before bidding. This is an electrical circuit of solar cell. The circuit has been translated into set of mathematical equations which are non-linear. There are about 15 equations with 15 unknowns. Numerical method on MATLAB may be implemented to solve these equations. I need some guy who can plot Current-Voltage (I-V) curve. Current (I) needs to be calculated from mathematical model while Voltage (V) can be taken an array of 100 points. 2. And he needs to get these: reverse saturation current (Io), ideality factor (a), series resistance (Rs), shunt resistance (Rsh). Images have been uploaded which show values of these parameters at reference (REF) or standard test conditions (STC) have been provided. One image is uploaded to compare final values. All needs to be done for 2-a-Si only.

$31
(Avg Bid)

Need an expert in trnsys to model an solar energy system and complete a report which discusses the methodology and results of modeling.

$225
(Avg Bid)

I would like guidance and ideas for designing a robust solar MPPT charger for lead-acid batteries and a distribution system to power up onboard systems such as micrcontrollers and the DC brushless motor. Must include an emergency power cut-off. And regenerative braking charging capability. Freelancer must be a professional in this field and have good documentation skills for every step. Most schematics will be designed in LTSPICE (unless you have a better option with reason)

$193
(Avg Bid)

I need to develop my smart irrigation system but instead of runing it on battery I would like it to be run by solar energy system.

$65
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The development of solar energy, its scope in technology and application. Solar Energy's pros and cons, and environmental effects. Technical paper with lots of details and statistics. Minimum 6 pages not including the reference and title page. Times New Roman Font. Size 10. Single column. Double Spaced.

$51
(Avg Bid)

This quarter's Fast 50 reports on the increase of writing jobs, app development, video production, and more.

Here are some exciting ways to go green (you don't have to settle with boring initiatives).