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Related to net energy: EROEI

Net

The gain or loss on a security sale as measured by the selling price of a security less the adjusted cost of acquisition.

Net

Profit or loss on a transaction. For example, in the sale of an asset, one calculates the net by taking the sale price and subtracting the outlay for buying or producing the asset. If the net is positive, one has made a profit; if it is negative, one has suffered a loss.

net

1. For the closing transaction in a security, the difference between net proceeds from the sale and the total outlay for the purchase.
2. See net income.
References in periodicals archive ?
Substantially lower net energy return than gasoline
Various studies debate whether the net energy from ethanol is even positive.
Of the total net energy consumption reported by the Department of Energy, coal and natural gas rank first and each accounted for 29% of the total net consumption.
The New Residential Zero Net Energy Action Plan was developed through a collaborative 18-month period and represents the work of more than 150 stakeholders in residential building, architecture, finance, clean energy, technology, and various state agencies.
Net energy is defined as ME minus heat increment (HI) (Birkett and de Lange, 2001).
Animals were weighed at the beginning and at the end of the experimental period to calculate daily feed intake (ADFI), digestible lysine intake (DLI), net energy intake (NEI), average daily gain (ADG), and feed conversion (F:G).
Hall adds that net energy numbers are hard to pinpoint because nearly all data on energy use in the U.
Like hybrid cars, hybrid or zero net energy houses reduce energy requirements with smart design, energy-saving construction techniques, and home-generated power.
It is a net energy exporter and coal is one of its largest export commodities.
A means of measuring net energy is Energy Return on Investment (EROI).
The government spends more than $3 billion a year to subsidize ethanol production when it does not provide a net energy balance or gain, is not a renewable energy source or an economical fuel," Pimentel said.
One of the key arguments over biomass energy concerns the net energy contribution of biomass--how much energy is gained from the crop.