Achievable Energy Efficiency and Spectral Efficiency of Large-Scale Distributed Antenna Systems

By: Sara Chauvette

This paper is available for 1 PDH credit towards your PE license

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Active Vibration Control Using a Kautz Filter

By: Sara Chauvette

This paper is available for 1 PDH credit towards your PE license

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Advanced Features and Applications of Heat Exchangers–An Outline

By: Sara Chauvette

This paper is available for 1 PDH credit towards your PE license

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The World's First Seawater and Solar Powered Farm

By: Kaylee Verhoeven

A state-of-the-art tomato farm has begun operations in Port Augusta, Australia. What makes this farm unique is that it runs completely on seawater and solar power. There are tomatoes growing in the desert! Thanks to the efforts of Sundrop Farms Holdings LTD 37,000 lbs of tomatoes will be on shelves every year. This is paramount since traditional agriculture is wasteful in terms of water and fossil fuels. Instead of soil, pesticides, fossil fuels, and groundwater, Sundrop Farms uses only Solar Power and desalinated seawater on its 49-acre farm.

The increase in population has influenced scientists, researchers, government officials and many other professionals to address food, water, and energy shortages. In this pilot facility, water is pumped from the Spencer Gulf 1.2 miles and then desalinated with solar power. The farm's solar power is generated by 23,000 mirrors that reflect sunlight towards a 377ft high receiving tower. 118 million gallons of fresh water each year, will be created. That’s 180 Olympic sized swimming pools. This process makes it the optimal environment to grow tomatoes. Seawater-soaked cardboard keeps the plants cool and solar heat keeps the greenhouse warm in winter months. The seawater sterilizes the air and plants are grown in coconut husks allowing them to thrive without pesticides.

Extreme weather events make it difficult to consistently provide consumers with products each year. Agriculture in different areas is devastated by weather. One solution to this problem was put to the test last week during a once-in-50-year storm that wreaked havoc in South Australia. Sundrop Farms was able to take the brunt of high winds and continue operations despite a massive blackout that crippled many industries in the areas making them inoperable. While other companies suffered massive setbacks Sundrop Farms is "living proof" that its groundbreaking technology could work on a large scale.

Other solar/seawater farms are being developed from the U.S. to Portugal and Africa. Each company and facility will be fulfilling local needs as well as sculpting the agriculture of tomorrow.
https://www.ecowatch.com/sundrop-farms-solar-desalination-2033987160.html


DO YOU NEED ENGINEERING PDHs?

ePDHonline.com offers online PDH credits based on modern articles written by professional engineers.

By: James Shomin

What is a PDH?

PDH stands for a Professional Development Hour which is the unit used to measure continuing education for a Professional Engineers. Most states require professional engineers to complete a certain number of professional development hours (PDH) in order to keep their state license current.

How do I find out the number of professional development hours I need?

The number of PDH credits required for your license depends on the state (or states) you are licensed in. ePDHonline.com has a full list of license requirements for Professional engineers, including PDH requirements broken down state-by-state.

Do I need to complete PDH courses every year?

PDH completion requirements are based on your states licensing cycle. Some states do require professional engineers to renew their license annually, however most states have a two or three year licensing cycle. For a complete list of licensing periods and renewal dates, check your state info on ePDHonline.com.

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