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Does an Elster GREX meter measure solar power generated in excess of current demand?
Wiki User
∙ 9y ago
It depends how it is installed. It will usually measure the total solar power generated. If you have a contract to supply extra energy back to the grid, then it can measure that too.
Wiki User
∙ 9y ago
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What is the effect of load factor and diversity factor on cost of generation in a power station?
Load factor effects the cost of generation. Higher the load factor higher will be the average load. So no. of units generated for a given period of time for the same max. demand will be more. Therefore, overall cost per unit of electrical energy decreases due to distribution of standing charges which are proportional to the max. demand and independent of units generated. Diversity factor effects the cost of generation. More is the diversity lesser will be max. demand due to which installation capacity of plant will be less. Lesser is the installation capacity lesser will be the capital required for installation. So lesser will be generation cost. And the fixed charges in the tariff would be less.
Why there is no reactive power in DC system?
In case of dc there is no reactive components and current drawn from the supply is in phase with the voltage.due to absence of inductor and capacitor the reactive power demand in dc is zero.
Why would a electrical meter read the cumulative maximum demand and not just the maximum demand?
Demand charges are related to the maximum kW drawn during a particular time window, typically 15 or 30 minutes. The single largest window sets the demand charge for the month. While the average kW may be much lower, the utilities must install transmission and distribution systems to handle the much higher peak kW drawn during certain periods. The demand charge is supposed to compensate the utility for the added cost of the larger lines, transformers, etc. needed to handle the peaks. Simply recording the maximum demand would mean that just starting a large electric motor could send your demand charge sky high (remember that some motors draw 7-10 times their running current on start up!), yet the momentary spike in current draw would not require a distribution system that was 10 times larger. On the other hand, say you used a 100kW motor for 50 minutes an hour. Your neighbor uses a 1000kW motor for 5 minutes an hour. You both consumed the exact same kWh, yet the utility would have to install a distribution system that was 10 times larger to serve your neighbor. That is the type of consumption a cumulative demand window is designed to capture. Your neighbor would be paying for the extra cost involved in the 1000kW distribution system, even though he only needs it for 5 minutes an hour. Demand charges are an excellent incentive to do load leveling, or so-called peak shaving, and a huge industry has grown out of that reason. Cumulative demand is the addition of each billing period [average over the window] maximum demand as described above. This value can be used to assure that no reset of billing period data has been missed - no missing billing periods. The utility can use the cumulative demand collected with the previous billing, and add to that the current billing period's max. Dmd., and the result should be the meter's current maximum demand. If the values do not match, a maximum demand for some billing period has not been collected correctly. If someone broke the seal on the meter, and caused the meter to start a new billing period to attempt to avoid paying for an earlier maximum demand, it would be detected.
Why is maximum demand necessary?
sir, i want to know about maximum demand controller, to control electricity maximum demand is required for industries to avoid any penalty, thanks.
What is meant by short circuit in relation to vehicle electrics?
In electrical terms, a short circuit is an abnormally low resistance across the terminals of a power source, resulting in an abnormally high current-demand from the source, which typically exceeds its capabilities unless its output current is internally 'limited'.
How have those markets generated demand?
How have those markets generated demand?
Is electricity generated on demand?
no that's imposible
How is the current demand for a good related to its future prices?
If the price is expected to drop, current demand will fall.
How is future price related to current demand?
Future price is not related to current demand
How is future related to current demand?
if the price is expected to rise,current demand will rise.
How can you measure the demand for services?
Measure the demand for services starts with appointments then goes to all other care processes. But the only way to really know the true demand is to measure it. Demand is divided into external and internal demands.
How is the future price related to current demand?
if the price is expected to drop, current demand will fall.
How is current demand related to the future price of a good?
If the price is expected to drop, current demand will fall.
What is the current demand in the target market for Victoria's Secret?
what is the current demand in the target market for Victoria secret
How is the current demand for a good related to is future price?
If the price is expected to drop, current demand will fall.
What is local demand?
the demand that is existing more in a current scenario refers to as local demand.
Is the eBay demand different from that found in traditional marketplaces?
how eBay have those markets generated demand?is this demand die from that found in market places?Read more: How_have_those_eBay_market_generated_demand
