Re-purposing old coal mines as pumped hydro storage facilities

Energy storage is a necessary component of practical solar or wind energy systems. Without storage, a passing cloud or a day of calm winds could result in the lights turning off.

This article from philly.com discusses a proposed energy storage system that may be used to complement wind energy in Central Pennsylvania. The Bucks County-based Merchant Hydro Developers wants to convert 21 out-of-use anthracite coal mines into pumped storage facilities. When power is less expensive, intermittent wind power will be used to pump water into an upper reservoir. When energy prices rise during the middle of the day, the water will be released into the lower reservoirs of the mines, spinning turbines on the way down to generate a consistent and predictable flow of power.

Pumped hydro storage already accounts for the vast majority of stored energy in the world including 97% of the energy storage in the United States. The coal mine reservoir solution is unique because it is a closed system. Most pumped storage draws from flowing bodies of water  (e.g. rivers) and released the water back into the same system.

Spring 2017 Course Offerings

Undergraduate Course Descriptions
Graduate Course Descriptions


Spring Term Offerings

Courses taught by CEPE Faculty

ECEP 354 – Energy Management Principles

ECEP 413 – Power Systems III

ECEP 503 – Synchronous Machine Modelling

ECEP 603 – Service and Power Quality in Power Distribution Systems

ECEP T480/643 – Solid State Protective Relaying

Other ECEP Courses

ECEP 403 – Nuclear Power Plant Design & Operation

ECEP 406 – Intro to Radiation Health Principles

Winter 2017 Course Offerings

Undergraduate Course Descriptions
Graduate Course Descriptions


Winter Term Offerings

Courses taught by CEPE Faculty

ECEP 352 – Electric Motor Control Principles

ECEP 412 – Power Systems II

ECEP 422/602 – Power Distribution Automation and Control

ECEP 502 – Computer Analysis of Power Systems

Other ECEP Courses

ECEP 372 – Radiation Detection and Measurement

ECEP 480 – Solar Energy Engineering

ECEP 642 – Protective Relaying Laboratory

Offshore Renewable Energy Systems in Singapore

Nanyang Technological University (NTU) is constructing four offshore hybrid microgrid systems in Singapore under the Renewable Energy Integration Demonstrator-Singapore (REIDS) initiative. The microgrids will include over 3,000 square meters of solar panels; their first customers will include fish hatcheries and nurseries in Singapore.

Read more from Asian Scientist Magazine at: http://www.asianscientist.com/2016/11/tech/reids-initiative-singapore-offshore-renewable-energy-system-ntu/

Image credit: Asian Scientist Magazine

Fall 2016 Course Offerings

Undergraduate Course Descriptions
Graduate Course Descriptions


 Fall Term Offerings

Courses taught by CEPE Faculty

ECEP 354 – Energy Management Principles

ECEP 411 – Power Systems I

ECEP 421 / 601 – Power Distribution Systems Analysis

ECEP 441 / 641 – Protective Relaying

ECEP 501 – Power System Analysis

Other ECEP Courses

ECEP 371 – Intro to Nuclear Engineering

ECEP 380 – Intro to Renewable Energy

ECEP 402 – Theory of Nuclear Reactors

Inside an IPSL Station

Inside an IPSL Station

Recent repair work in IPSL (Interconnected Power Systems Laboratory) made it possible to take a look inside an IPSL Station.  The image below shows the front panel of an IPSL Station and the back of the station with the cover removed. Each station contains the connection terminals for:

  • AC  and DC sources
  • Field and armature circuits of the rotating machines
  • Connections to the main transfer panel, where power can be routed to the loads (light bulb banks, inductor carts, and capacitor boxes)
  • Transmission lines and transformers

The actual rotating machines and their protection systems are located behind each IPSL station (not pictured here). Signal conditioning boxes, used to measure sending end and receiving end voltages and currents, sit on top of each IPSL station. Visit the IPSL Lab Page to learn more.

IPSL Station Diagram

 

Spring 2016 Course Offerings

Undergraduate Course Descriptions
Graduate Course Descriptions


 Spring Term Offerings

Courses taught by CEPE Faculty

ECEP 354 – Energy Management Principles

ECEP 413 – Power Systems III

ECEP 453/ 673 – Applications of Power Electronic Converters

ECEP 503 – Synchronous Machine Modelling

ECEP 614 – Power System Dynamic Security

Other ECEP Courses

ECEP 371 – Intro to Nuclear Engineering

ECEP 380 – Intro to Renewable Energy

ECEP 402 – Theory of Nuclear Reactors

ECEP 403 – Nuclear Power Plant Design & Operation

ECEP 406 – Intro to Radiation Health Principles

ECEP T480/643 – Solid State Protective Relaying

Research Developments Could Lead to More Efficient Lightbulbs

The BBC recently published this report that gives an overview of new research conducted at MIT which may make traditional incandescent bulbs even more efficient than modern LEDs. The method required covering the base of the bulb with a nano-engineered material that reflects some of the (otherwise wasted) energy back into the bulb where it is emitted as visible light.

Drexel University Department of Electrical and Computer Engineering