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Are sunnier days always the best for solar PV generation?

Posted by James Page on 28 April 2017 at 11:35 am

Are sunnier days always the best for solar PV generation?

People often remark that solar panels do not need a sunny day to generate. Turns out a cloudy day can sometimes generate more than a sunny one. Three years ago, JoJu Solar installed a 10kW flat roof system on Artsadmin in Central London. It was the first project with panels facing East and We…

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Small solar must be maintained to meet Solar Strategy goals

Posted by James Page on 24 April 2014 at 11:32 am

Small solar must be maintained to meet Solar Strategy goals

20GW of solar generated electricity was always going to be an ambitious target, but at least the new Solar Strategy (published earlier this month) keeps it alive. Like any long term investment solar will continue to need government support (the writing of the document was outsourced to a…

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Why we should build renewables into new homes

Posted by James Page on 5 September 2013 at 9:20 am

Why we should build renewables into new homes

When the government proposed a 'bonfire of red tape' I never seriously thought they would want to stop renewable energy requirements for new buildings. One of the few levers local authorities have over builders is to make planning permission conditional on provisions, such as solar panels…

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How voltage affects solar PV

Posted by James Page on 13 May 2013 at 9:40 am

How voltage affects solar PV

As most people will know mains voltage in the UK is  - nominally - 230V (it was 240V until we compromised with the European 220V supply).  But why does it change in both time and place even within mainland Britain? The answer to both stems from Ohm’s law. The voltage drop in t…

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A 100% renewable future: Yes we can

Posted by James Page on 23 November 2012 at 8:43 am

A 100% renewable future: Yes we can

So President Obama gets a second shot at cutting carbon. It will be a tough call, but he should remember that some of the leading renewables manufacturers are from the USA, and the export potential is huge. At least three other leading economies have their work cut out keeping the lights on, neve…

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Is domestic voltage optimisation all it's cracked up to be?

Posted by James Page on 3 September 2012 at 9:27 am

Is domestic voltage optimisation all it's cracked up to be?

The domestic microgeneration market has seen an increased interest in voltage optimisation (VO) technology. This is either being promoted by voltage optimisation companies, or increasingly as an additional offering by solar PV companies.  Proponents of the technology claim high levels of ene…

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Solar will exert a downward force on electricity prices

Posted by James Page on 22 December 2011 at 10:09 am

Solar will exert a downward force on electricity prices

There is still a day left to submit responses to the consultation on solar feed-in tariffs.  Which is just as well as those in the industry have been a tad busy until now.    Ironically my submission will centre on a point I also made in relation to nuclear power four years…

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Storing microgenerated electricity will shift power from energy companies to householders

Posted by James Page on 9 June 2011 at 10:03 am

Storing microgenerated electricity will shift power from energy companies to householders

In general self-sufficient communities are inherently sustainable. Not until the advent of companies whose very existence depended on an ever increasing trade in coal, oil or electricity did demand for energy, and carbon emissions, get out of hand. The question is how can we keep the benefits of bei…

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