Net Metering

Home » Photovoltaic » Net Metering


The next day in the PV market, but also the marketing and sale of electricity, "listen" to the name Net Metering. What it is, how it works and what are the recommendations for the assimilation of the Greek market?

In fact , the development of PV throughout Europe during the last decade has been impressive . Despite the crisis , thousands of small and large investors took advantage of the high guaranteed prices for sale (Feed in Tariff) and placed the funds in a promising and growing industry .

 Today , things are very different . The large number of facilities and high selling prices (FiT), created large financial requirements incurred by the final consumer and brought electricity markets almost on the verge of collapse.

 Local governments were forced to not only drastically reduce the guaranteed selling price , but additionally attempted to reduce selling prices even on existing plant . The sharp drop in demand brought the crisis and in the PV industry , the time when Europe announces increased targets for the penetration of RES.

 Clearly , new increased targets can not be achieved with the current institutional and legislative framework. This must change moving in new directions that will ensure long-term stable and sustainable development of RES.

 What is Net Metering

 It all started in the United States , when people noticed that , can reduce meter reading power making him flipped upside down . The rotation of the counter in the opposite direction was the installation of a photovoltaic or a wind turbine . The energy produced by these systems and not absorbed by the plant ( ie the consumption of the building) , sent to the grid , so that the meter is turned upside down by reducing the clue .

 In practice , ultimately , the consumer paid for the energy they consume less energy produced , which gave the name of net metering, this initially illegal practice .

 In 1980 the power sector of the state of Idaho first allowed consumers the option of net metering and already in 1998, net metering was legal in 22 U.S. states , and in 2005 with federal law, all electricity companies in the country, had to give this capability to their subscribers. In Europe , the first country that has piloted the net metering, were Denmark , in 1998 , the monimopoiontas anno 2005 . Apart from Denmark , the net metering successfully applied sto Belgium , Holland and Italy ( known as scambio sul posto), and will soon be adopted in Cyprus .

Notably , the shift from selling to FiT a net metering scheme is simple , since technically , an electrical system designed for net metering, does not differ at all from a system designed for current sale . The only difference is where you connect the system to the mains . This point is usually somewhere between the general table consumption and electricity meter .

 Reflections on the application of Net metering in our country

 The Net metering is a substantially new policy of buying and selling electricity . Consumers who have or will have, usually small units of renewable energy ( such as a P / V system or a small wind turbine , etc. ) will be able to offset the output with power consumption . If the output power is more than the consumed annually , then the consumer is credited by the electricity provider excess energy he had. Otherwise , the consumer is charged only with the power consumed after having removed the generated energy was the RES system . With the implementation of Net metering, if the consumer wants can pay the electricity provider only the monthly fee ..

 Cost and amortization

The values ​​of the F / V systems have experienced rapid decline over the last period , making the institution of the applicable Net metering. A z / b 5kW power system which annually produces 7.000 kWh ( Attica), and meets the needs for electricity of a big house , currently costs about 11.000 € with VAT . Such residence pays stream about 1500 € per year ( this amount does not include other charges such as council tax , ERT , etc. ) . Consequently , such an investment is payback time ranging from 7-8 years , not counting any future increases in tariffs refmatosi . Already in early 2013 electrical rates rose again and are expected to increase two more times until the end of the year . An increase is expected until at least the end of the year and the Unified End Pollutant Emission ( ETMEAR ) . This marks the fastest payback of a PV system that operates in net metering ..

 For lower consumption of around 4.000-5.000 kWh per year , depreciation is slower, something that could be improved if the state offered some kind of a special grant program NSRF .

 A z / b 3kW power system currently costs about 8.000 € per year and produces 4.000kWh electricity . A corresponding consumption in PPC pays about 700 € to 800 € per year . If this house subsidized by a percentage eg 40 % on the purchase of the equipment 's energy system , then the payback time is reduced to six years .

 increase consumption

 Application of Net metering allows consumers to increase their consumption in order to cover other needs, such as heating and cooling . For example , you can replace your old boiler with a pump

heat which will provide heating and cooling the home.

 The Net metering can be applied to large and very large consumptions requiring businesses . In exactly the same way as discussed above , office buildings , commercial, craft and industrial buildings , can invest in an energy system which greatly reduces the cost of electricity . The economy of scale and tax framework ( such as recovery of tax and accounting depreciation ) make these investments even more attractive as the payback time is reduced even more .

 The cost of electricity per unit of product or service is reduced , and the company can increase its competitiveness.

 Net metering applications we can have in the primary production sector . Rural facilities consume large amounts of electricity (greenhouses , water pumps , etc. ) . A system of renewable energy can regenerate and help economically and agribusinesses .

 What is the real cost of electricity ?

 In recent years the electricity bill incorporating a series of complex rates making it impossible to monitor from simple consumer. Besides , however , create and misconceptions , as most consumers think that the cost per kilowatt hour is approximately 7.10 cents .

 In practice , apart from the charges that are unrelated to electricity , ie municipal taxes , fees, ERT and talked hike , the value stream incorporates additional 9 different charges :

• The power supply charge

• The fee for the national electricity transmission system

• The fee for the national electricity distribution network

• The fee for services of general interest

• The Special Tax emission reduction ( ETMEAR )

• other rates

• The Special End 0.5 %

• excise duty

• The Value Added Tax

To calculate the actual purchase cost of each kilowatt hour should do two simple actions :

1. Add the amounts ultimately payable clearing account and the account against which refers to the value stream

Two . Divide the total by the kWh listed in clearing account will observe that the amount obtained is very different from what we thought until today (invoice C1 PPC ) .

If you are among the lucky ones who consume more than 2,000 kilowatt hours per quarter and are integrated into the home or commercial invoices PPC find with surprise that the real cost of each kilowatt hour supply , perched comfortably in the order of 0,17 € to 0,21 € per kWh.

 The Advantages of Net metering

 Particularly good results are expected from the implementation of Net Metering in our country . Consumers , whether residential or commercial , win-win , while increasing the penetration of renewable energy , creating new jobs without charge for the Officer of the Electricity Market LAGIE . The cost of electricity fluctuates, which in the majority of damage to the final consumer. Application of Net metering, makes fairer particular market , since the consumer agent alone the energy it needs , dramatically reduces exposure to increases in the price of electricity . It can increase the consumption of electricity covering new needs , such as heating or charging an electric vehicle .

 The increase in the price of electricity is no longer an enemy , but an ally . The rising price of kWh, the sooner it comes the year of depreciation of capital invested in an energy system .

 The commercial, artisanal and industrial companies reduce the cost of electricity consumed and gradually recovering , regaining lost competitiveness . A possible funding through programs NSRF would help low-income households and would support both the development of the industry , and the absorption of the funds we receive from the European Union . This has resulted in saving jobs and creating new ones. On the other hand, the operation of the market is not burdened with opulent outputs to measure the FiT (Feed in Tariff). The new P / V systems to be incorporated in the network will not increase the deficit LAGIE . Under certain conditions , should help in the long term even reduce the deficit of LAGIE .

 The institutional framework in Greece

 The state created an institutional framework for the development of RES , which gave impetus to this sector. Within a few years , has been powerful enough electricity to the national grid , displacing energy generation from fossil fuels.

 At the same time , created many jobs in a time of economic crisis . The whole industry has supported the Greek economy in a very difficult phase.

 Unfortunately , the institutional framework has not been able to offer a long-term sustainable development of the energy industry . Distortions in the application and omissions of the legislative framework have led to the electricity market at breaking point . The deficit observed in the functioning of the market in Greece is increasing.

So far , the measures of the state resulted in the loss of jobs , the closure of companies active in the industry and the excessive burden on the end consumer of electricity.

For that matter has intervened and the Panhellenic Association of Scholars - Domestic PV Installers ' SUN ' , having known proposals to the ministries to rationalize the market and the revival of art using as a basic tool the Net Metering.

 The institutionalization of Net metering for the building sector in all production sectors ( primary , secondary , tertiary ) moves towards normalization of the problem and sustainable development of the energy industry in our country .


  pdfDownload the Government Gazette (GG) of the new legislation on RES NET METERING