A Guide to Solar PV – Solar PV Mounting Systems

Part 2 of “Guide to Solar PV”

 

Solar Photovoltaic panels can be mounted in various ways. The three main ways are:

 

  • Standard Frame Mounting
  • Integrated Mounting
  • Solar Tile Mounting

 

Standard Solar Panel Mounting

This is your standard solar panel mounting system

1. Standard Frame Mounting consists of profile bars that sit on top of your existing roof tile (slate etc) and are anchored in. This is most common and by far the cheapest method of mounting the panels they are very safe, reliable and quick. As for manufacturers of these frame mounting systems there is no ‘market leader’ or one brand that sticks out as exceptional, they are all the same as all they do is mount the panels to your roof safely and securely.

 

 

 

 

Integrated Mounting System

These panels are mounted in roof

2. Integrated Mounting Systems are a way of incorporating the solar panels in alongside the tiles instead of on the top. They do look nice however there are some underlying issues with them. Firstly if your roof already has tiles on it removing all the tiles and placing the mounting system in will cost you a good half to a days labour extra costs, this is very expensive. Furthermore because there isn’t a constant air flow the panels get very hot and become less efficient which means you generate less electricity which in turn gets you less feed-in tariff income. Finally because of the heat the panels can get to, having a boiling hot solar panel within your roof is a potential fire hazard.

 

 

Solar PV Roof Tiles

These Solar Tiles replace the original tiles, can replace any type of tile

3. Solar Tiles are a clever little way of replacing the actual tile with a solar tile that acts as a tiny solar panel, you obviously need quite a lot of these to get the same level of output as the standard solar panel but it can be done. Unfortunately there are two main issues with them. Firstly the cost, they are very very expensive and can add an extra £3,000 to your materials cost, also they take a lot longer to set up so it will cost more in labour too. Finally they are quite inefficient at the moment, you wont be able to generate as much electricity as you would with standard panels so that also means less feed-in tariff income.

 

 

Our recommendation is that you stick to the standard mounting system, its cheaper, more efficient and quicker to install. Again the mounting system manufacturer doesn’t really matter at all, we just go for the cheapest we could find that mounts the panels securely and safely so it lowers the cost to our customer without comprising the safety of the panels.

 

Hope this helped and these are the links to the other parts of the guide

Part 1 Guide to Solar PV

Worcester Display Van 3rd September 2011

As accredited installers of Worcester Bosch Gas and Oil boilers we are proud to represent their products around Market Harborough, Leicestershire, Rutland, Northamptonshire & the surrounding areas. We are hosting a range of Worcester gas boilers, oil boilers and renewable energy products at the Square in Market Harborough on Saturday 3rd September 2011.

As well as viewing Worcester Bosch products  you can have a chat with our engineers who will be able to answer any questions you may have. They will also be there to give advice on the products that are suitable for your home and suit your needs.

This can really be a great way of getting free advice on replacing old boilers that are no longer energy efficient and are costing you increasing amounts of money to maintain, they will reccomend a more energy efficient boiler that is tailored to your needs.

We look forward to seeing you at The Square in Market Harborough on Saturday 3rd September 2011 from 8:30 onwards!

 

 

 

A Guide to Solar PV – What to look for in Solar PV Panels

Samsung 245w solar panelThere are thousands of different PV panels and every one different in a certain way. If you are considering solar PV the initial outlay is large, so you want value for your investment! So this guide really breaks down to the simple things you need to look for in a panel, how to compare them and to make sure you are getting value for money. After this if you are still confused a simple chat to an installer (such as ourselves) would allow you to understand quickly. For now these are the three main attributes for solar PV panels.

 

1. Output: This means the maximum output of electricity the panel could generate from the sun in watts. To find this out, most panels have their wattage in there name, so a Schott 230 watt panels can produce 5 watts less than a Schott 235 watt panel. So the bigger wattage, the greater the maximum output, the more you save and earn. However the higher spec panels obviously cost a lot more and sometimes the price increase isn’t worth the extra wattage, this leads me on to the next attribute to look out for

 

2. Efficiency: This is important, the efficiency is quite literally the efficiency of turning the UV rays into electricity we can use and export. The average is quite low, they range from really low end panels of around 10% and can reach heights of 17%. Efficiency is the best way to split up similar wattage panels, if two panels have a maximum output of 235 watts but one has an efficiency rating of 15.4% and the other has an efficiency rating of 16.9% the obvious choice is the better efficient panel. Again though you must consider price in all of this, if the increase in price doesn’t warrant the increase in efficiency then there really is no point. If you are unsure on what constitutes a higher price then just ask our Energy Renewables Manager.

The Schott Solar 235w panel3. Warranty: Photovoltaic (PV) panels are an ever growing technology and with that they are constantly improving the technology and with that the lifespan. Currently the industry standard warranty is 5 years, however Schott have increased this to 10 years and I’m sure they wont be the last. Another industry standard is to have the manufacturer guarantee of 80% performance over 25 years so your panels wont fall below 80% performance throughout the Feed-in Tariff, this is all checked when the solar PV system is serviced.

 

4. Cost of Panel: As previously mentioned this really is dependand on the wattage, efficiency & warranty but my advice to you is if you get a quote where you feel the panel price is too high, simply look on the internet. One simple rule, if you can get it yourself cheaper than what the installer is offering, do so.

 

This guide is all well and good but I’m sure the first thing you would say is

“yeah that’s great, but where do I find all of this out?”

Well to find this kind of information out is very simple all you have to do is Google Search your panel’s Brand and watt number followed by data sheet. So for example if I wanted to find out the spec on a Samsung 247w panel I would type into Google ‘Samasung 247w panel data sheet’ then find a relevant link and open what is called a PDF file and will look like this when you open it.

http://www.samsung.com/us/business/solarmodules/images/data/Catalog(US).pdf

You may be asked to download it but as long as the file is .pdf it can contain nothing but text and images so you will be absolutely fine!

 

I really hope that has helped you in the minefield of information that is Solar Photovoltaic.

 

This is just one part of our “Solar PV Made Easy” Guide and we hope you enjoy. Links to the rest to follow….

 

Regards,

Lewington Solar

 

Part 2 – Guide to Solar PV – Mounting Systems

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solar Panels Northamptonshire

The Real Assurance Logo - ListedLewington Solar can really offer you some great deals on all Solar PV panels from a great range of recognised brands. The Northamptonshire area really lacks a local business that can offer big business savings without the hassle of dealing with a large corporation.

We operate in the Northamptonshire & Leicestershire area and have done so for over 30 years as a business and have been installing solar panels since 2000 so are more experienced than others to!

The logo of MCS Approved

Solar Panels Leicestershire

 

The logo for the Real Assurance SchemeHere at Lewington Solar we strive to offer the best price on all solar thermal & solar PV jobs in the Leicestershire area. Our suppliers have noticed our size and are getting us better deals on all of our solar panels, this is really great news for our customers as we can offer better prices than the bigger solar panel companies in Leicestershire whilst still being a recognised local company with excellent after sales!

The logo for MCS to prove Lewington Solar is Approved

Lewington Solar also recently installed Solar PV panels on to our own roof! If you would like to arrange to come down and have a look at the inverter, the wiring & the solar panels themselves then feel free to phone the office if your in the Leicestershire area on a certain day and just want to have a little look around then feel free!

For more information on renewable energy sources and how Lewington Solar can help you lower your energy bills, visit our website at www.lewington-solar.co.uk, email info@lewington-solar.co.uk or call 01858 433 333 and ask to speak to Darren King. If you would like to speak to Mr Williams directly about his ground source system, please let us know and we will arrange for you to do so.

 

 

Boiler/Renewable Demonstration Day – 3rd September

Lewington Solar & Lewington Heating and Gas are combining once again to put on a boiler and Renewable Demonstration Day on the Square in Market Harborough on September 3rd 2011.

We regularly put on these events so the general public can ask the simplest questions or the most detailed questions to our lead engineers without having the hassle of a quote.

 

The event is on from 8:30am – 5pm and is on Saturday 3rd September.

 

Graham and Darren look forward to meeting you all!

 

Lewington Solar

Lewington Solar New Website

We have a brand new website!

We are proud to say, after a long process a brand new solar website. The new-look website looks really great and we hope you enjoy browsing!

Any feedback positive or negative is completely welcome and we encourage it all.

If you want to leave feedback on our website please visit the contact us page!

Regards

Lewington Solar

Lewington Solar Get Solar – Leicestershire, Leicester, Northampton

Lewington Solar after advertising and promoting the benefits of solar pv in Leicester, leicestershire, Northampton & Northamptonshire have had solar pv put on Lewington Solar’s roof! The 3.99kWp system will generate over £36,000 in 25 years and help keep the companies carbon footprint to a minimum, the system was designed and installed by our own solar enginneers and it also acts as a viewing point for all customers willing to see how they look on our roof and the effects within the unit itself. We really do see the financial benefits of solar PV and that it isnt just a fad it is truly a great financial oppotunity. These are the figures for our solar panels:

Example 2 – Large solar PV installation

Solar system size = 3.64 kWp (x17 panels)

Total estimated cost, including VAT @5% = £13,440.00

Annual solar electricity generation = 2,960 kWh

Annual income from Feed-in Tariff = £1,282.00

Annual income from electricity export = £46.00

Annual fuel bill saving = £185.00

Total annual income and savings = £1,513.00

Lifetime benefit over 25 years = £37,814

 

If you would like to come see the solar pv panels then you are welcome to view at any time, however if you would like to have a close up view then please contact the office on

01858 433333

or email at

info@lewington-solar.co.uk