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A simple and easy way to understand how does solar energy process works and help homeowners to save on their electricity bills. Clipping is a handy way to collect and organize the most important slides from a presentation.
Whether you own a home, run a business, or manage a municipal building – there are many important advantages of installing solar energy panels on your property. Solar energy is a modular technology, meaning you can install as many or as few panels as you like – whenever you like.
However large your installation, you can expect your electricity bill savings to grow with time. In the charts below, you can see some average solar system costs and estimated 20-year electricity savings from a study conducted back in 2011. Depending on where you live, solar panels not only help you save on your electricity bill – they can also generate passive income. Many states, like New Jersey and California, offer generous renewable energy incentives designed to encourage solar photovoltaic (PV) adoption.
To learn whether you qualify for these incentives, run a free solar report on your property and get a free options consultation today.
Because solar energy helps you save on your electricity bill, it’s an investment that pays for itself many times over the 25+ year lifetime of your installation. Solar energy can also fetch you a much higher asking price when it comes time to sell your home. As more homes and businesses across the country install solar panels, our nation moves farther away from fossil fuel consumption and closer to a clean economy powered by the sun. To learn how you can take advantage of these economic and environmental benefits, request a free solar quote today.
The photovoltaic (PV) effect was discovered by accident in 1839 when nineteen-year-old Edmund Becquerel.
In 1873, Willoughby Smith discovered the photoconductivity of selenium, and in 1876, Adams and Day observed the photovoltaic effect in solid selenium. When a photoconductive material is connected as part of a circuit, it functions as a resistor whose resistance depends on the light intensity. On the Left is an illustration from around 1870 of a solar engine developed by Captain John Ericsson, which used concave mirrors to gather enough solar radiation to drive a motor.
Aside for Einstein Nobel winning documentation, the most critical technology developed came in 1941 when the first silicon mono-crystalline solar cell was created. In 1954, the PV effect in Cd was reported in as a commercial application; primary work was performed by Rappaport, Loferski and Jenny at RCA. Western Electric began to sell commercial licenses for silicon PV technologies in 1955; early successful products included PV-powered dollar bill changers and devices that decoded computer punch cards and tape. PV technology was initially used in satellites and some small devices, and only in the 1970’s began to be used in providing energy in commercial and private buildings. Although the knowledge of the PV effect has been around for a long time it is as exciting for us today as it was when it was first discovered because of the fascinating role it plays in creating clean, efficient power from a renewable source and the positive impact it can have on both the environment and the economy.
In 2006, Solar Energy Systems is a locally owned and operated energy company based in Nappanee, Indiana being changing the way Hoosiers consume energy by offering renewable energy like solar and wind to help families and business save money and stay safe even when the power is out. Measurements are in Btu (British thermal units) and MBtu (1,000 btu) - Adjusts every second. Most of the energy companies we contacted gave the wrong advice when asked about export meters for the domestic feed-in tariff. Our mystery shopper phoned all of the big six energy companies, plus Good Energy and Ecotricity.
Ecotricity was the only company that said it will install an export meter if a customer requests it. These rules are devised for bigger generation systems (every installation over 30kWp must have an approved meter), where serious sums of money are involved. All the energy companies urged our mystery shopper to go with the 50% deemed export option, saying that it was not worth installing an export meter. Npower gave similar advice, saying that it does not install meters itself, but that she would be looking at a couple of hundred pounds to buy one, and her installer should be able to help.
E.on appeared more interested in giving our caller a quote to install her solar panels than on answering her questions.
British Gas said it didn't offer export meters, mainly because smart meters (see below) are due to be rolled out from early 2013. Good Energy told our caller that she would only need an export meter for an installation of 10kWp or more. The situation will change again when smart meters are introduced, as they will measure both import and export of microgenerated electricity, as well as that imported from the grid. NB: This article is based on one phone call to each company - so it just gives a snapshot, rather than a representative sample of customer service.


If you have a question about anything in the above blog, please ask it in the comments section below.
1) What will happen, and will the payments change when a smart meter is installed as part of the national rollout? 2) Will I still received a deemed export payment or will my export payments now be based on measurements from this smart meter that I haven't asked to be installed? As you'll see from the blog above, the energy companies have quite different attitudes to export meters. Smart meters will be rolled out soon which will meter both import and export - however, the standards haven't yet been finalised, so it may be risky to get one installed now. The old fashioned meters which run backwards when you are exporting give generators an extra financial boost as they pay for less electricity than they actually use.
Your installer was wrong to show you a calculation based on being paid for exporting 75% of the electricity, as for small installations (under 30kW) the norm is to 'deem' export to be 50% of what you generate. First thing: I think Eon is probably right in saying that most domestic installations export more than 50% of their generated electricity, especially if they are out of the house all day. More curious is the assertion that the smart meter doesn't measure exported electricity accurately. Eventually, there will be a roll out of smart meters to all households, and it is intended that they measure both import and export of electricity. However, I'm still surprised to hear what you say, and will do some digging to see if I can find out more. However, you don't have to use the same electricity company that you buy your electricity from for your feed-in tariff (FIT) supplier.
Message: Have been trying to get to my proposed PV installer to fit a export meter when building my 4kw instalation, he said its down to my supplier (EDF) to fit oneif I request one. I can't comment on the possibility of separating the payment of the generation tariff and the export tariff, but you can definitely choose a feed-in supplier (ie the one who pays both your generation and feed-in tariff that is different from the company you buy your electricity from.
As Hugo says, they all pay the same rates (as set by government), so the choice is pretty much down to customer service, and for a system the size you're planning, farmer, I'd also be looking at whether the company offers an export meter for microgenerators.
No matter how small your installation, you begin receiving smaller monthly bills from your local utility company – from Day 1.
Each new kilowatt of installed solar capacity brings you bigger electricity bill savings.  With a large enough installation, it’s possible to reduce your energy bill completely. The cost of solar has come down tremendously since then, so the average savings in many states should be better for people who go solar today than they were for people who went solar in 2011.
If you qualify for these incentives, your local utility company actually pays you for the clean energy that your panels produce – either with direct cash or through credits.
It costs you nothing to explore your solar PV options, and the potential upside is unlimited. An average sized installation on a $500,000 property can add $20,000 or more to the retail value of your home – an amount that exceeds the average cost of most residential solar installations, meaning you could not only be reducing or eliminating your electricity bill but also getting 100% of your money back when and if you sell the home. By contrast, most kitchen remodeling projects only deliver returns of 60%.
They benefit anyone who enjoys having a cleaner and more sustainable environment (which means everyone). Stay up to date on the latest news, ask questions, or just see what others interested in solar energy are saying. The French experimental physicist, discovered the photovoltaic effect while experimenting with an electrolytic cell made up of two metal electrodes. In this context the material is called a photoresistor (also called light-dependent resistor or photoconductor). Bell System’s demonstration of the type P rural carrier system began in Americus, Georgia. Since then the technology and availability has improved and PV is now the fastest growing type of power generating technology in the world. Based on comments on previous blogs and questions we receive from readers, we know that some people find the whole issue of exporting electricity confusing. She posed as someone considering installing a 3.9kWp solar PV system, and asked whether she could have an export meter installed, and if so, what it would cost.
However, for new customers, it, like all the rest of the energy companies we spoke to, recommended talking to your installer.
While an installer can put in a meter to measure the amount of electricity you export, it will not be acceptable for paying the export tariff. It also pointed out that smart meters would be installed free of charge to existing customers, but not for another couple of years.
Interestingly, it said that they don't install export meters on their installations, but our caller should talk to her installer if she wanted to go down that route. It also recommended speaking to your installer if you want an export meter now, saying they cost a couple of hundred pounds. When asked if they would provide a meter for a smaller installation it advised our caller to talk to her installer, who would not be likely to recommend it either. Energy companies will have to install these, free of charge, in every household in the UK between now and 2020.


At the moment I am receiving a Feed In Tariff payment for my Solar PV system a) on what I generate and b) 50% of that as a 'deemed' export. You have to have one for systems bigger than 30kW, and for systems smaller than that some will fit them, and others won't - and prices vary. However, as soon as electricity companies realise you've got one they are likely to change it for a modern digital meter. When your system is generating, any electric use in the house draws on the generated power first, and tops it up if necessary with imported electricity. However, the government hasn't yet agreed the standards for those smart meters, so any that energy companies are currently installing may need to be changed when the major change over comes along.
If you go down that route you will be paid the export rate on metered export, not the deemed 50%. It is completely within its rights to do this as the rules say that installations of over 30kW must have an export meter. So you could continue to import power from EDF, and change to either Good Energy or Ecotricity, which both will supply export meters for smaller systems (see blog above). Most of the big six assume and set up their paperwork so that you have only one firm ie A=B=C. If you haven't already registered, please sign up as a company or an individual, then come back and have your say.
And when it comes time to sell, you recoup 100% of your investment thanks to your property’s higher asking price. The first silicon mono-crystalline solar cell served as a precursor to the type of cells used most commonly found today. Chapin, Fuller, Pearson (AT&T) submitted their results to the Journal of Applied Physics. According to the regulator, Ofgem, for an export meter to be approved for feed-in tariff payments it must meet strict criteria, and be installed and maintained by the electricity supplier. The cost of installing and maintaining a meter is likely to be greater, than the income from the export tariff for most domestic systems. The foundation stage, where smart meters will be tested, is starting now, and the mass roll out will begin in 2014. I know that smart meters will register both import and export, so my guess is that at some time in the future export will be paid on actual rather than deemed amount. Your system will generate much more electricity in the summer months than it is generating now, and if your usage stays the same, it's likely that you will be exporting more than 50% of what you generate. Otherwiseyou could shop around to see if anyone will install a smart meter, but as the mass roll out isn't due to start for a while, you may not be in luck.
Now, out of the blue, NPower have contracted me to demand (yes it was a demand) that they should be allowed to enter my home and replace by Import Meter with one that doesn't go backwards.
It was the result of that Nobel Prize, that others inventors flocked to photovoltaic study, which lead to years of new finding.
AT&T demonstrated solar cells in Murray Hill, New Jersey, then at the National Academy of Science Meeting in Washington, DC. This means it will generally be done by the local distributor, at the request of your energy company.
Both then and now, the best way to get the most return from you panels is to use as much of the solar generated electricity as possible. As outlined above, energy companies charge a varying amount for fitting an export meter with an MPAN number.
They have said that the smart meter does not measure exported electricity accurately and that most people use more than 50% of the power they generate! Any body wish to comment on the ease of getting a export meter fitted and or any one comment on the suggested tarrif if one does get a meter.
I export around two thirds - and I work at home - which means I've more opportunity to use it during the day. My refusal is based firstly on the advice of an installer I spoke to a couple of years back and the fact that I have no Export Meter. I know EST is doing some research on this, and will report on the findings as soon as they are available. With quite simple mathematics I can deduce how much energy my home uses using my Generation Meter in combination with my Import Meter. There is no doubt that, aside from the bureaucratic hassle, it would be worth paying for installation of an export mater and even a moderate annual fee as I will be exporting most of what I generate - if ScottishPower were willing to 'cooperate'.



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