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9 BiDirectional Meter

It is simple: the Sun hit the panels which are made of photovoltaic (also known as PV panels) cells. These cells are made of silicium allowing photons to knock electrons free from atoms and generate electricity. The PV panels generate Direct Current or DC (used for mobile phone, laptop, batteries …) however, to be connected to your home and the grid, this DC current needs to be transformed into Alternative Current or AC which is the form of current traditionally delivered by the grid. To turn DC current into AC an inverter is installed between the panel and the house main circuit breaker.

8 How it works v2 If you generate more power than you consume, this extra power can be exported to grid but it is NOT LOST! This is the good news: current regulation allows owners of Solar Panels installations to export and import back electricity from the grid but the rate is slightly different: if you export 1kWh, you may have a credit of 0.65 kWh.
Your power supplier will need to replace your existing meter with a net meter measuring how much electricity you import and how much you export. At the end of the month, these are taken into account in the balancing the electricity bill.

Our company can design, procure, install and maintain the solar system for you.  


Do solar panels produce electricity when the sun isn’t shining?
Yes, Solar panels start generating electricity when there is some light so even there are clouds or during the rainy season, your system will still generate power. At night the solar panels don’t produce electricity.

Are solar panels working in case of electricity blackout?
There are still generating electricity however, for safety reasons, to protect people repairing the line, the system automatically shuts down unless you have a battery storage as well.

How is it connected to the grid?
Solar panels generate Direct Current (DC) and cannot be directly connected to the grid which provides and requires Alternative Current (AC). Solar panels are connected to one or several inverters which turn DC into AC and can be exported to your local power  supplier using a net meter.

Do I get money from my power supplier if I export power to the grid?
No most probably you don’t get money, as there may not such a mechanism called ‘Feed-in Tariff’ for rooftop solar panels in your country. However, you will get a credit for the energy exported, which will reduce your electricity bill. This is called Net Metering.

How are the panels mounted on the roof?
Solar panels are tied to aluminum rails which are fixed on the structure of the roof. Then a sealant is applied to make the junction water proof.

Will I still receive electricity bills if I go solar?
Yes, being connected to the grid involves connection charges that solar cannot reduce, whether you consume electricity or not. So ideally the right size of system will allow you to reduce your electricity bill but the savings shall not overlap with the minimum charges otherwise you are paying twice: one for being connected to the grid, and a second for generating electricity

Is maintenance needed?
The maintenance mainly consists in cleaning the solar panels to make sure they produce at their maximum capacity. On a yearly basis check of the electrical system, cabling, panels and mounting rails is required.

What do I do if it doesn’t work?
Please contact us and we’ will advise. We provide a 1-year warranty on the installation and the equipment providers between 10 to 12 years on their products. We will liaise with the suppliers at your end to avail the warranty.. 


Solar panels 1




Prefab World Bali

Reviews from Prefab World Bali

"I contacted Prefabworld Bali International while looking for a suitable contractor to design and build a Joglo style structure above the existing flat roof of our house in Canggu. Bali. The builder we had used for the house had not installed the sealing membrane properly and we were plagued by leaks and had decided to build the additional structure to help keep the water out and give us some really nice additional space on top of the house looking at over the rice fields. "

I was very concerned about getting a proper design that was both strong enough to withstand the occasional high winds and not degrade the integrity our house – basically we did not want the Joglo to end up in the rice field and leave a big hole in the roof where it had been attached!

Prefabworld Bali International was extremely professional in every aspect – they managed to design a structure that was strong, did what we wanted and looked good.

The installation went as planned and we are completely satisfied with the end result.

I would definitely use Prefabworld Bali International again!

Review from: Don Silcock, Canggu, Bali, Indonesia
Project: Joglo roof
Date: 31-01-2016
Rating: 5 out of 5.

Read more testimonials from Prefabworld Bali International: click here
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