Solar roof energy-
Frequently Asked Questions

How much electricity can nu-lok solar roof inserts produce?

The size of a Solar PV panel is measured according to the number of electrical units it can produce under ideal conditions. The smallest system size usually installed on a domestic property is 1 kilowatt peak (kWp). This means that under optimum conditions, the nu-lok seamless solar roof insert system will produce 1000 watts at any given time. A 1 kWp system is expected to produce at least 1500 kWh (kilowatt hours) every year. In comparison, the average 4 bedroom house would use approximately 7,175 kWh per year.

Therefore a 2 kWp nu-lok roof solar system will produce nearly 40% of these electrical requirements – as well as reducing the amount of harmful carbon dioxide you create by around 1600 kgs!

So with a life span of around 25 years, a 2kWp nu-lok roof solar system will generate around 75,500 kWh and avoid almost 40,000 kgs (40 tonnes) This translates to taking around 10 cars off the road – a wonderful personal contribution.

How much roof area does a nu-lok solar roof system need?

Typically a 1 kWp system will usually require approximately 8sqm of non-shaded roof area, and for the best results, it should face within 90º of north (from north-east through to north-west).

What happens at night/in winter/on cloudy or rainy days?

Technological advances mean that to power a nu-lok roof solar system, you only need daylight – not sunlight. So you can still generate electricity, even on a cloudy day.

Although Solar PV panels tend to generate more electricity on bright days than when it’s overcast, your nu-lok roof solar system will still generate electricity even on a cloudy day.

Is solar energy safe?

Solar energy production from a nu-lok roof are completely safe. Glass doesn’t conduct energy so you can’t be hurt or electrocuted by touching it – even when panels are installed and connected. The installation process is the same as normal nu-lok roof tiles and the necessary precautions are taken by our trades people when working on roofs.

The final connection and commissioning of your nu-lok solar roof system is undertaken by an accredited Electrician to ensure the highest degree of safety and quality service.

What happens if there is a power cut?

The nu-lok solar roof system is grid connected, which means that if there is a power cut, your system will automatically be switched off.

This is designed as a safety measure to protect individuals who may be working on restoring the power supply from any electricity that might flow back into the grid from your system.

What maintenance and cleaning do the systems need?

nu-lok solar roof inserts have no moving parts, are completely silent in operation and require no maintenance. Most of the time rain will keep the modules clean, however if you have pesky birds in the area you may need to clean them with a hose from time to time!

How much does a solar system cost?

Over the last 20 years, the cost of solar PV cells have fallen dramatically (around 500%) however the cost will obviously depend on what size system you wish to install. nu-lok consultants can help design a system for you that fits both your budget and roofing requirements.

With increased government grants available for installation or upgrade of solar roof systems the cost is constantly decreasing.

Is government funding available?

Government grants are available to install a nu-lok solar roofing system. For more information:

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nu-lok Solar roof Panel