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    Archived pages: 19 . Archive date: 2013-09.

  • Title: sustainergy - Welcome to Sustainergy
    Descriptive info: .. >.. HOME.. Introduction.. WIND SYSTEM.. Grid-connect.. SOLAR SYSTEM.. Grid-Connect.. OFF-GRID.. Your energy needs.. Batteries.. PORTFOLIO.. 2KW PV ROOF - Grid-Connect.. 2.. 5KW Off-Grid Wind System.. CONTACT US.. MAINTENANCE.. ECONOMIC FEASABILITY.. Links.. Edit site.. Welcome to Sustainergy.. Sustainergy specialise in electrical Wind and Solar PV power and offer the following services within this field:.. Installation / service (grid-connect or stand-alone).. Retail (mail-order).. Design and consultancy.. Educational (teaching & workshops).. Latest news:.. The government has reduced the Feed In Tariff or.. FIT's.. for SOLAR PV, however, due to panel price reductions, we can now fit fully installed non-chinese PV systems which achieve 14% returns and 7 year payback: Basically you get paid a high rate for each unit (KWh) of Wind or Solar PV electricity that you.. generate.. - even if you use it yourself! This tariff makes Wind & PV Solar systems extremely viable: Payback is now 5 -12 years, after that it's.. tax-free.. profit.. All.. domestic renewable systems installed by SUSTAINERGY are eligible for FIT's as we are MCS accredited and only use MCS accredited equipment.. For more info please see.. www.. fitariffs.. co.. uk.. Products and services.. Sustainergy s fundamental  ...   FIT's.. programme SUSTAINERGY has concentrated much attention on.. PV solar roofs.. , and did indeed install the FIRST DOMESTIC GRID-CONNECT PV SYSTEM (2KW) in West Wales.. SUSTAINERGY works along side BERR/DTI s regulating authorities to ensure that all PV installations are to the latest standards, both in terms of safety and performance.. SUSTAINERGY are MCS accredited installers for both grid-connected and stand-alone (battery) PV Solar systems.. Associated with the.. Low Carbon.. grant scheme, SUSTAINERGY are also accredited.. Wind Turbine installers.. (having installed the.. first UK wind system.. through the Clear Skies scheme for the explorer "Bear Grylls" on his North Wales island).. SUSTAINERGY are also commissioned by local authorities to provide power in various public amenity sites (e.. schools, colleges and isolated public conveniences).. The business offers its technical expertise to schools and colleges who are interested in teaching this growing technology, and we also train up the end-user to be able to perform much of the annual service work.. Recently installed 6KW Wind Turbine at.. Roberts Primary school - Dudley.. 3.. 5KW non-penetrative PV array at St Davids Primary School, Pembs:..  | ..  | .. © www.. sustainergy.. net 2004.. Site by.. LikemindedMedia..

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  • Title: sustainergy - Introduction
    Descriptive info: >>.. Introduction to sustainable energy systems.. Sustainable or renewable energy is energy that has been made without using up the earths supply of fossil fuels.. It can be continuously made for ever and ever and will never run out.. Examples are wind, sun (solar), water (hydro, wave or tidal) and wood (biomass).. Usually this energy is made with absolutely minimal pollution or impact on the earth and thus is extremely environmentally friendly.. Given the fact that the earth WILL eventually run out of polluting fossil fuels and that nuclear power is so environmentally dangerous, it seems highly likely that it is only a matter of time before the whole world will be exclusively running on renewable energy.. Many people already know this (all too well) and want to make a contribution to working towards renewables.. now.. by investing in a small domestic system at home.. SUSTAINERGY have helped hundreds of normal householders find a system that is most suitable for them and work out whether it is feasable (both technically and economically)  ...   rural small holders to urban terraced houseowners, from local councils to large farms, from campervans to country mansions - everyone and every site has the potential for harnessing renewable energy and we can tell you which sort is most suitable.. Cost is the most important consideration, and the government has given us all a helping hand by offering generous.. Feed In Tariff's.. - we are accredited installers under the FIT's scheme which means we have passed strict tests to ensure quality of installation, and also allows you to claim the FIT's (tax free!).. Each year your 'homegrown' green energy earns you an income (you have a special electricity meter installed) and reduces your electricity bill by a certain amount of money.. Payback is the number of years it takes for you to recoup your initial investment and start gaining, financially.. Some systems pay back better than others:.. Generally a windy site should payback in 4-6 years depending on size of turbine whereas a Solar PV site will take 7-9 years to payback..

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  • Title: sustainergy - Wind systems from Sustainergy
    Descriptive info: Wind systems from Sustainergy.. WIND TURBINES.. Wind turbines capture the winds kinetic energy and transform it into usable electricity.. The rotation of the turbine drives an alternator which generates electrical power.. This power then either runs in parallel with the national grid (and powers the house as normal) OR charges a bank of batteries (for off-grid properties).. Wind turbines are more difficult to install than PV s but they do generate more power in the winter when it is most usually needed, and are also far more cost effective in terms of payback.. However wind energy is generally less reliable during late summer months - for this reason.. off-grid.. systems often use a WIND/PV hybrid system, with the wind turbine providing most of the winter power (and PV providing summer power).. Photo: 6KW turbine on 15m tower on a farm in Carmarthen.. Although they have moving parts, Wind Turbines are more reliable than ever in terms of wear, with easily available and replaceable spares: Maintenance is minimal (and easily possible as DIY).. Planning approval will almost always be required for domestic turbines (>100W).. Approx.. grid-connected prices for Wind turbines:.. 6 KW ------ £22,500 } + VAT @ 5% & delivery.. Payback period tends to be between 3-10 years depending on the site, and the design life of the turbines is 20+ years.. EVANCE..  ...   further information see.. Evance R9000.. PROVEN.. Proven 11 (6KW) turbine.. Sustainergy are the Welsh distributors for.. Proven.. turbines - the Proven 11 (6KW) is a simple and extremely tough Scottish made turbine, initially designed for extreme wind sites in the Outer Hebrides.. There have been thousands installed all over the world since it came on the market in 1998, and demand for this product is increasing so rapidly that Proven have had to do some serious factory expansion.. Proven 11.. EOLTEC.. Scirocco 6KW turbine.. Sustainergy are now the Welsh installers for the.. EOLTEC 6KW Scirocco.. turbine - this is an impressive sleek French design which has been around for several years now and uses very modern technology.. There are now many installed in the UK and this number will grow over the next year as the Scirocco becomes a competitor to the Proven 6KW.. In the Orkneys (severe wind) there is a Proven 11 and an EOLTEC Scirocco installed very close together, and energy yield figures are being compared.. The build quality of the Scirocco is excellent, with precise engineering based on large scale wind farm turbines.. Scirroco.. SUSTAINERGY are MCS / Low Carbon Buildings fully accredited installers.. If you are interested in a similar SUSTAINERGY project take a look at.. Alternatively click on the.. Portfolio.. links on this page for other examples..

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  • Title: sustainergy - GRID-CONNECTED WIND TURBINE SYSTEMS
    Descriptive info: GRID-CONNECTED WIND TURBINE SYSTEMS.. For many years now small-scale domestic and commercial WIND TURBINE grid connected systems have proven themselves to be increasingly viable means of generating clean electricity AND providing a steady income.. After much negotiating with both DTI and electricity distribution companies during the last few years it has been agreed that turbines up to 6KW can be very easily connected to the grid to export electricity and receive an income.. The (hard fought for) G83 recommendation gives anyone permission (hassle free) to connect a generator to the national grid provided it has been type tested.. As with PV systems the system owner is paid both for the total electricity.. generated.. (41p -  ...   connect in parallel to your existing supply a special inverter (called a.. Windy Boy.. ) is used to synchronise the varying voltage from the turbine to the stable grid supply.. This G83 approved Windy Boy is designed and built in Germany, and individually programmed on-site to optimise the amount of power exported to the grid using complex algorithms as well as ensuring network safety by disconnecting if the grid fails or becomes unstable.. Unfortunately at present the inverter is NOT able to power the house during a power cut, and the turbine is left to 'free wheel' harmlessly until the power is resumed.. For more information on grid connected wind turbine systems please.. contact us..

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  • Title: sustainergy - Solar systems from Sustainergy
    Descriptive info: Solar systems from Sustainergy.. PHOTOVOLTAIC MODULES.. Otherwise known as PV s or SOLAR PANELS; these are rectangular flat devices that face the sun and generate electric power from its light.. The energy of photons is used to energise electrons in the PV s laminations).. Three types of PV cells exist;.. Mono-crystalline;.. Poly-crystalline and;.. Amorphous.. "Mono's" are the most efficient in terms of module area, and they generally last longer.. Poly s are slightly less efficient while amorphous cells are only half as efficient and have a shorter life-span (they are, however, cheaper).. A PV array is generally easy to install and the modular nature of such a system allows for easy upgrading.. A south facing roof of any pitch is ideal.. The solid state technology employed in the production of PV s means that they are very reliable, lasting 30+ yrs.. If PV s on their own have a drawback it is that they generate most power in the summer when it is not always needed,  ...   be significantly greater.. Planning permission is not usually required for PV s.. The most common and least expensive PV systems consist of a PV array 'bolted on' to the roof, this means that it stands up slightly proud of the roof.. More integrated systems involve removing the slates or tiles, fixing the array to the rafters and then re-fitting the slates/tiles around the array forming a waterproof barrier (similar to a Velux roof window).. Also available, though more expensive, are 'Solar Slates/Tiles' which mimick the look of normal slates/tiles - though these integrated systems cost more.. Typically, in Southern UK, each 1 KW of PV panels(2m x 3.. 5m) will generate about 1,000KWh (units) of solar electricity per year - a 2KW system will produce double.. Typical costs (through SUSTAINERGY) are in the region of £2,000 per KW including installation.. Site-assessment visits can be arranged prior to ordering - these are chargeable at £200 + 40p/mile travelled, but fully refundable upon ordering a system from us..

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  • Title: sustainergy - Solar PV grid connected systems
    Descriptive info: Solar PV grid connected systems.. For many years now small-scale domestic and commercial Solar PV grid connected systems have begun to emerge as increasingly viable demonstrations of how future energy generation may occur.. read on and prepare for the future (or the present if you are enthusiastic enough).. A renewable generator, such as PV Solar, can be connected to the national grid in most countries.. This means that finally a solar array can.. export.. any surplus electricity to the grid AND get.. paid.. for it! With the system of.. FIT.. payments, a reasonable income can be earned from even small (1-2KW) PV systems.. It works like this:.. Light.. from the sun (either directly or through thin clouds) hits the solar panels and is converted into DC electricity.. With.. grid-connected.. systems the DC electricity is fed, via two small cables and an isolating switch, to a special inverter.. This compact and quiet DTI approved  ...   roofs are suitable, providing they face between East, South, and West - optimum pitch is between 20-60 degrees.. Roof material is not a problem - the PV array is secured (with 125mph loading tests) to special aluminium rails that are screwed to the roofs rafters through the slate/tile/shingle/concrete etc.. Strict attention is paid to continuity of weatherproofing.. Alternatively the whole array can be integrated into the roof - like a Velux roof window.. The whole PV system has a 2 year warranty, with 10 year full guarantee on the mounting structure, and the PV modules 20 years! The system has a life expectancy of over 35 years.. Maintenance on PV systems (unlike WIND systems) is absolutely minimal - gentle washing of the PV glass and possible inverter service.. SUSTAINERGY are MCS accredited installers and thus have passed a strict quality control criteria.. Local councils also contract us to install on remote public buildings..

    Original link path: /index.php?id=35
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  • Title: sustainergy - OFF-GRID (BATTERY) SYSTEMS
    Descriptive info: OFF-GRID (BATTERY) SYSTEMS.. Mostly suitable for locations that are not connected to the national electric grid, off-grid (or stand-alone) systems store spare energy, generated from wind/solar/hydro etc, in a large battery bank.. During periods of insufficient generation the battery then provides the power needed (for lights and appliances etc).. Battery systems tend to cost 10-20% more than grid-connected ones - mainly because of battery cost (and 10 yearly replacement) and sophisticated charging controllers.. However, well designed and installed systems are very reliable and usually no different to the consumer than conventional grid-connected buildings.. As all battery systems are tailor-made for each individual customer, more discussion is necessary between yourselves and our engineers - please check through the.. page and read it carefully, then download the load-table document and fill it in as best you can - you will probably need to.. for help with this.. A battery system must have a weather-proof room to house all the equipment that will manage the power.. This room can be within a house  ...   to a plywood board attached to the wall - preferably out of childrens reach.. All this equipment contains complex and expensive electronics and so should NOT be kept in humid or damp places - condensation (common with tin roofs) should also be avoided.. When the battery bank becomes full, the charge controller will often need to divert the incoming energy to a dump heater or two - this could be an immersion or a storage heater.. These can be installed in the powerhouse but are more useful in a living space - there's great satisfaction felt when these heaters come on, warming you up and telling you that the batteries are full!.. The batteries are usually installed in an insulated plywood box (or similar) with two vent pipes taking the explosive/corrosive hydrogen gases outside.. Fuses and disconnects will be installed close to the battery for protection and the large cables will then connect up the charge controller and inverter.. A typical powerhouse set-up would look like this (battery is adjacent):..

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  • Title: sustainergy - Calculating your energy needs
    Descriptive info: Calculating your energy needs.. The first step in designing a Renewable Energy System is to appreciate that it is easier and more economic to reduce consumption through energy efficient appliances, than it is to generate more power.. The government has introduced an energy labelling scheme which labels all appliances with their efficiency rating (A-G), always buy 'A' rated appliances.. A typical preparatory measure then, might be to install energy efficient lighting or exchange electrical heating appliances with alternatives (e.. gas/wood).. Spending pennies here will save pounds later.. Next you need to examine in detail where your power will be going, and attempt to reduce this to an acceptable, but comfortable minimum.. In order to assess individual power needs a form, to be filled in, is included in this document.. To complete the Load Assessment Table first make a list of electrical appliances that make up the Load (i.. e.. anything electrical in your house).. For small systems, using more efficient 12 volt DC appliances is generally better than their 240 volt ac counterparts (even though the initial purchase of a 240 volt appliance is usually cheaper).. These can be lights, laptops, printers, fridges, travel kettles etc.. Also heavy duty 12 volt power tools are readily available.. With part or  ...   on a data-plate on the back of the appliance.. The given figure will be the.. maximum.. value, not the average, so it is usually appropriate to reduce this value somewhat.. A list showing approximate values for popular appliances can be supplied on request - this can help you fill out the form.. The next column is the HOURS OF USE per day for each appliance.. Ideally this should be done for every month of the year as seasonal variations are important, however for simplicity: Mid-summer and mid-winter values will suffice.. Please note that refrigerators and freezers are only actually on for about 12 hours a day in the summer and 8 hours in winter.. If the POWER CONSUMPTION and HOURS OF USE column are multiplied together the result is the DAILY CONSUMPTION, expressed in watt-hours.. This is the most important column, in that it shows how much ENERGY is being used by each individual appliance, indicating which are the most demanding (and expensive to run) overall.. Click on.. loadtable.. to download a word document which you should fill in and email back to us.. Once we receive your form we can start to design (without any cost to you) an appropriate renewable energy system tailored to your individual ENERGY NEEDS..

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  • Title: sustainergy - Batteries
    Descriptive info: Storage batteries (for Off-Grid systems) store and regulate the electrical power as it is generated by the sun or wind, and also as it is used to power appliances around the house.. Many myths surround these necessary lumps of lead and acid - some of which are are explained below.. For any stand-alone renewable energy system, (where electrical input is dependant on slightly random variables e.. wind/sun/water etc), the large bank of storage batteries MUST be genuine.. deep-cycle.. cells.. This does NOT include cheaper car or 'leisure' batteries which simply will not last very long.. The problem is that with a stand-alone system the battery bank will be drained (or cycled) down to a low state of charge regularly - thus it is essential that the battery will not be damaged by this cycling effect.. Deep-cycle batteries are specially designed to cope with this, where-as car and 'leisure' batteries are not (fork-lift batteries are also suitable).. The result is that you will have to replace the battery FAR sooner if deep-cycle cells are not used, and the overall long term expense will be much greater (this doesn't mean that you can't experiment and have fun with second hand batteries, but don't expect a lifetime out of them).. Most storage batteries are of a Lead-Acid content - they have thick lead electrolytic plates surrounded by sulphuric acid.. These cells come in all shapes and sizes - usually individual 2 volt cells or 6 volt triple cells.. These cells progressively deteriorate both with  ...   after your batteries properly you need to be constantly aware of their state of charge (SOC) - just like checking how much petrol is in your car.. An accurate.. SOC 'fuel' gauge.. is available (£160) which monitors exactly how much charge goes in and comes out of the batteries and displays exactly what your SOC is (they can also sound an alarm or switch on a generator at a programmed SOC - e.. 50%).. A simple glance at the SOC guage once a day will let you know whether you have plenty of spare power (washing day!) or whether you are low on power (reduce your load).. Often.. charge controllers.. and.. inverters.. use green and red LED lights to show the state of the battery but these are.. inaccurate guages.. and no substitute - they simply look at the voltage not the SOC.. Inevitably batteries will get deeply discharged to 30 or 40% SOC from time to time (when you use extra power or if its not very windy or sunny for several days).. Some of the damage that this causes can be rectified by regular equalisation charging of the cells - this is when you slightly over-charge them by raising the voltage above normal, causeing them to 'gas' and bubble, which has the effect of cleaning the built up sulphur off the plates.. Normally you should perform an equalisation charge once per month for two hours, and most inverters will do this either automatically or at a push of a button..

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  • Title: sustainergy - Portfolio of installations
    Descriptive info: Portfolio of installations.. Take a look at some of our previous installation projects here.. 2KW PV ROOF - Grid-Connected.. 5KW Wind System - Off-Grid.. 6KW EOLTEC Scirocco wind turbine on 12m tower, running power and underfloor heating off the grid - owned by John Geyl of Hay-on-Wye:.. 1.. 4KW PV solar roof owned by Serena Roney-Dougal in urban Glastonbury:.. 4KW PV solar roof running Stephen Lloyd's holiday house in Newport, Pembs:.. 1KW PV roof running toilet block at Whitesands beach near St Davids:.. 8KW Solar "porch" running St Oswalds playgroup along side solar hot water panels in Pembrokeshire:.. Typical wall mounted public display, showing current and to date energy measurements:.. 6KW Proven wind turbine on 15m tower running Tim Rutherford's smallholding and carpentry work-shop near Oswestry:.. 6KW Proven wind turbine on 15m tower, owned by Rheon Rowlands on Anglesey - generating over 15,000 KWh each year:.. 6KW Proven wind turbine on 15m tower running a smallholding in Powys, owned by Peter Benning:.. 6KW Proven wind turbine on 9m tower, owned by Paul Leeke of Goodwick:.. 6KW Proven wind turbine on 9m tower, owned by Dr Otto Klimach of Trelawnyd:.. 6KW Proven wind turbine on 15m tower, running a farm owned by John Hollies of Laughne:.. 1KW Photo Voltaic array on non-penetrating mounting frames at RSPB's Ellins Tower, Anglesey:.. 6KW Proven wind turbine on 15m tower supplementing hydro power by a forest, owned by Dave  ...   powering computers and other teaching aides at Roberts Street Primary School, Birmingham:.. 6KW Proven wind turbine on 9m tower, owned by Stuart Williams of Abergavenny:.. 6KW Proven wind turbine on 15m tower, owned by Ian Robinson of Wrexham:.. 0.. 25KW off-grid PV system owned by Gwenda Williams of Abercych:.. 5KW off-grid PV system on strawbale house, owned by Rachel Whitehead of Cardigan:.. 1KW Grid-connected PV roof, owned by Tim Sims-Williams in North Devon:.. 2KW off-grid PV roof, owned by Volker Stocks of Penzance:.. 6KW Proven wind turbine on 9m tower, owned by Professor Bob Sharpe of Carmarthenshire.. with controller and inverter in utility room:.. 6KW off-grid Proven wind turbine on 15m tower, owned by Brian Ryal of County Donegal, Eire:.. 6KW Proven wind turbine on 9m tower, owned by David Regan of Carmarthenshire:.. Bob Robarts of Sustainergy hand winching up a 6KW Proven wind turbine on 9m tower, owned by Ann Pollard of North Devon:.. 6KW off-grid Proven wind turbine on telescopic tower on exhibition trailer, owned by West Wales Eco-Centre of Newport:.. 6KW Proven wind turbine on 15m tower, owned by Jenn and Stuart Carter of Carmarthenshire.. with controller and inverters in spare bedroom:.. 6KW off-grid Proven wind turbine on 9m tower, owned by David Barnard in the Peak District.. with off-grid battery controller and inverters:.. 5KW off-grid Proven wind turbine on 6.. 5m tower, owned by Claire and Bill Auger of Herefordshire:..

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  • Title: sustainergy - 2KW PV ROOF - Grid-Connected
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    Archived pages: 19