Electricity market | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-20

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Electricity_market


00:02:29 1 History
00:07:56 2 Nature of the market
00:09:22 3 Wholesale electricity market
00:11:04 3.1 Bid-based, security-constrained, economic dispatch with nodal prices
00:17:39 3.2 Risk management
00:21:12 3.3 Wholesale electricity markets
00:25:14 4 Retail electricity market
00:31:24 5 Electricity market experience
00:33:50 6 Capacity market
00:34:00 6.1 Turkey
00:34:15 6.2 United Kingdom
00:35:06 6.2.1 Auctions
00:35:49 6.2.2 Definitions



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SUMMARY
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In economic terms, electricity (both power and energy) is a commodity capable of being bought, sold, and traded. An electricity market is a system enabling purchases, through bids to buy;  sales, through offers to sell; and short-term trades, generally in the form of financial or obligation swaps. Bids and offers use supply and demand principles to set the price. Long-term trades are contracts similar to power purchase agreements and generally considered private bi-lateral transactions between counterparties.
Wholesale transactions (bids and offers) in electricity are typically cleared and settled by the market operator or a special-purpose independent entity charged exclusively with that function. Market operators do not clear trades but often require knowledge of the trade in order to maintain generation and load balance.
The commodities within an electric market generally consist of two types: power and energy. Power is the metered net electrical transfer rate at any given moment and is measured in megawatts (MW). Energy is electricity that flows through a metered point for a given period and is measured in megawatt-hours (MWh).
Markets for energy-related commodities trade net generation output for a number of intervals usually in increments of 5, 15 and 60 minutes. Markets for power-related commodities required and managed by (and paid for by) market operators to ensure reliability, are considered ancillary services and include such names as spinning reserve, non-spinning reserve, operating reserves, responsive reserve, regulation up, regulation down, and installed capacity.
In addition, for most major operators, there are markets for transmission congestion and electricity derivatives such as electricity futures and options, which are actively traded. These markets developed as a result of the restructuring of electric power systems around the world. This process has often gone on in parallel with the restructuring of natural gas markets.