Commercial Blog

Free CPD Training for Commercial End Users: Solar PV & Battery Storage

Erica Charles · 15 Jun 2018

Are you responsible for a commercial property or a commercial / residential property portfolio? Or are you an architect, specifier, commercial end user, engineer, contractor or consultant seeking to learn more about solar PV or battery storage?

If so you many be interested in our FREE CPD accredited training courses.

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Topics: Battery storage, CPD training, Solar PV

Angling for a Flat Roof Solar System?

Erica Charles · 02 Jan 2018

Driving around business parks and industrial estates (as I do...), I am frequently struck by how many flat roofed industrial buildings there are, and how few of them have solar panels on them.

Flat roof solar tends to cost slightly more than sloping roof solar, but it's still worth doing - payback times of 7-9 years are typical, versus an expected life of 20-30 years.

In simple terms the lifetime cost per kWh generated is around 4.5p. With the Feed-in Tariff subsidy that falls to around 3p per kWh! 

You really should want one...

3p per kWh is pretty amazing, particularly when compared to a grid cost of 10-15p per kWh and rising. So if your premises has a flat roof, don't dismiss it. Call us and we'll assess the viability of the installation for you. 

In the mean time, here are a few key things to be aware of, including the optimal panel slope, the optimal orientationfixing type, ballast, and roof warranties.

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Topics: Solar PV

High Performance Solar Panels: SunPower Generates 30-50% More Power

Erica Charles · 03 Nov 2017

As a rule of thumb, with the decline in Feed-in Tariffs and the advent of battery storage, a grid-connected commercial solar system is best sized with an annual output (kWh) approximately equal to the annual load of the business / property.  

So if your load is 36,000kWh a year, and a kWp outputs 900kWh a year, size the system at 40 kWp.

What if your roof is too small to achieve this with standard panels? Which panel do you turn to?

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Topics: Solar PV