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Our Blogs

We have three blogs at Spirit, covering renewable energy from a homeowner, commercial and contractor perspective. Keep up-to-date with all the latest developments in solar PV, battery storage and EV charging.

Recent posts

Green Roof PV: Solar Panels and Green Roofs

Posted by George Riley on 22 Aug 2019

Image source: Optigreen

Those looking to make the greatest environmental benefit from their roof space may feel they should choose between solar panels and green roofs - but can you combine the two? Yes - though both systems need to be designed properly.

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PERC Solar Cells: When Are They Worth It?

Posted by George Riley on 15 Aug 2019

What is a PERC cell?

PERC solar cells are a variation on the traditional cells used in solar panels that offer enhanced efficiency. The acronym PERC stands for Passivated Emitter and Rear Contact or Passivated Emitter and Rear Cell. Over the last few years they have become more and more popular, to the point where they now make up over 40% of the solar technology market and are expected to dominate by 2021, according to the ITRPV.

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Types of Solar Panel: Which Should You Choose?

Posted by George Riley on 08 Aug 2019

It’s important to do your research when planning your solar system, but the sea of technical terms can soon become overwhelming. Let’s address some of those you may come across when comparing types of solar panel - and see how those types stack up.

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Solar Panel Orientation

Posted by David Woon on 02 Aug 2019

Solar panel orientation is a key determining factor in the output of a solar PV system, as it dictates how much sunshine the panels will see over the course of the day. The more sunshine they see the higher the output. In the UK the optimum orientation for a high generation is to face the panels due south. However; what happens if the panels face off south or even directly east or west? 

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Solar Panel Specifications: Reading a Solar Panel Datasheet

Posted by Erica Charles on 25 Jul 2019

Solar panel key parameters

If you are trying to compare one PV panel to another, it is helpful to understand the key technical parameters - or solar panel specifications - that impact performance.

With this in mind, we’ve taken some extracts from the specification sheet for a standard polycrystalline solar panel (Trina Solar’s HoneyM Plus+ 265-275W range) and highlighted the key parameters.

We’ve then highlighted key differences between the Trina panel and SunPower’s Maxeon® 3 panel.

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Solar Panel Output

Posted by David Woon on 18 Jul 2019

Why does the solar panel output matter?

When installing solar panels there are many things to deliberate over, whether that be the price or aesthetics, but probably the most important metric to consider is the output. More often than not the price you pay for an installation will be relative to the power output of the system. The rated power output or wattage of a panel represents the theoretical power output under ideal conditions and is a strong indication of the amount of electricity a panel will generate. However; there are factors other than the panel’s wattage to consider when determining its output or energy generation. 

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Free Solar Panels for Business: Meet Solar PPAs

Posted by George Riley on 19 Jun 2019

Is it possible to get free solar panels for businesses? A lot has changed since solar first started gaining popularity, with prices falling around 50% in the last decade and many of the initial subsidies like the Feed-in Tariff closed to new applicants. But there are still opportunities for companies to benefit from financed solar systems, the most promising of which are Solar PPAs.

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Spirit Energy Now Accepts SolarCoins: Air Miles for Solar Electricity

Posted by Erica Charles on 28 Sep 2018

We hear more and more about Blockchain technology.  The technology creates a transparent public ledger that records series of transactions, facilitating a fast, low-cost, trusted transfer of value without the involvement of traditional intermediaries.  

Already used in the financial sector, it’s only a matter of time before Blockchain hits the energy sector in a major way, particularly with the explosion of micro-generation of electricity, the ending of solar subsidies, and the advent of smart meters.

With Octopus Energy claiming to have paid customers to use excess electricity at night on four occasions in the last 12 months, real time peer-to-peer trading of electricity is surely just around the corner. Other potential applications include authentication of renewable generation and trading of emissions permits.

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Road to Zero: Workplace Charging Grant Increases to £500 per Chargepoint

Posted by Erica Charles on 20 Jul 2018

On 9th July, the government launched its “Road to Zero Strategy” to lead the world in zero emission vehicle technology.

Not to be confused with any other ‘Road to Zero’ or ‘Round in Circle’ government strategies, this one is all about ensuring at least 50% of cars are ultra-low emission by 2030, and ensuring that the infrastructure is in place to support this.

If you’re in charge of a ‘workplace’, the good news is that on the back of Road to Zero, the Workplace Charging Scheme will now contribute 75% of purchase and installation costs (up to a maximum of £500) towards the cost of each charging socket installed. 

The grant is available for to 20 chargepoints per applicant, across all sites.

In other words, up to £10,000 per business.

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