How to install solar
1. We plan your installation together
We help you choose the size and equipment that fits you best.
2. Make an offer
After a survey and short talk we will create you an offer in no more than 2 weeks.
3. Financing (optional)
We can support you with a bank loan or a PPA investor that pays for the installation.
4. Sign and install
After signing the contract we will install the system in just 4-12 weeks.
What size to install?
First you need to find out your electrical load during the day.
You can see it directly with the Automatic Meter Reading (AMR) from MEA or PEA. If you are not sure then we can help you set it up.
Here is an example electricity usage for a factory that uses their machinery between 08:00 and 18:00, with daytime consumption of around 100 kW:
Add a solar installation:
A solar installation typically has around 75% efficiency and it is best to oversize a little bit, so here a size of 150 kWp has the best cost-benefit.
Suggested size = Electrical load / 0.75
How much does it cost?
We need to check your roof and electrical system to give you an exact offer.
Market prices in beginning of 2025 are between 14.5 and 22 Baht per Watt.
Our offers for most projects are between 15 and 16.5 Baht per Watt.
Small projects cost a little bit more per Watt.
What do you get with your solar installation?
On your roof
Here your free electricity gets produced. After installation, 1-2 times per year a maintenance team will go up here for cleaning.
Water system for cleaning
Walkway for safety
Safety fence to prevent falling
High quality mounting
Long-lasting, high performance solar panels
Near your MDB or main breaker panel
Here the inverters convert the electricity from DC to AC and feed it into your building's electrical system.
Internet connection for monitoring
Clean and safe cable management
Extra breakers for solar
Huawei inverters usually are best value for cost
Monitoring
You can always check your solar power production on your laptop or your phone.
Case study
Our customer has an ice factory in Tak that runs 24/7. Their electricity bill was 350,000 Baht per month, their daytime electricity load 200-220 kW and their goal was to save a large amount of their bill.
Here is their factory's roof from above, before the installation:
After surveying the building and checking their electricity usage together we decided to install around 200 kWp. As equipment we chose 342 bifacial solar panels with 600 Watt each, so a total of 205 kWp, and 190 kW Huawei inverters.
The full installation took 4 weeks. Here is our engineering team on the roof:
We took the drone pictures a few days before completion so later the top left corner got solar panels as well. Here is the almost-finished installation:
Here is a screenshot of their monitoring software for the 9th of April. The green curve shows the electricity production during the day, starting in the morning at sunrise and peaking during noon.
Also you can see the solar yield of 990 kWh for that day. At around 4 Baht per unit, the solar installation saves them around 4,000 Baht for a single day.
In summary the customer saves around 110,000 Baht per month and has a investment payback time of less than 4 years. They will be able to use the system for 30 years because we used sturdy bifacial solar panels and very high quality mounting.
The factory owner was really happy with their savings and already hired us for on another factory of hers in Summer this year.