IS SOLAR ELECTRICITY REALLY COST-EFFECTIVE IN THAILAND?
This is determined by numerous variables but generally YES. Systems are improving and costs are decreasing rendering it cost effective for more and more installations all the time.
Electricity prices in Thailand are at the present time + 4.5 thb per unit, but really depends on how and where you live, but the prices is soon changing again. This is quite a low cost compared to Europe and many other areas of the world and are predicted to increase during the next few years.
Why Solar Power In Hua Hin Thailand?
Installing Solar PV (Photovoltaic) on your premises in Thailand has many benefits, from storing energy, saving money and lowering your reliance on the grid.
The key options are On-Grid (or even Grid-Tied system), whereby you install Solar PV panels and a Grid-Tied inverter, this program is synchronised to the local grid, and power generated during the day will reduce your monthly electrical bill. Local regulations permit the homeowner or company to install Solar PV on the roof no matter how the system has to be enrolled and must comply with local regulations.
Typically Peak Sun is for about 5 hours per day along with the ROI (return on investment) is about 7 to 10 years (based on current pricing and tariffs).
Off Grid Systems are far more complicated as Loads and use need to be factored into the equation… An Off-Grid System comprises Solar Panels, an Off-Grid Inverter, Batteries and a Charge Controller. The size of this system will count on the power demand and the number of days back up power is demanded. With an Off-Grid system all the loads are run off the batteries and the sunlight is there to charge the batteries, a small generator may be required for overcast days.
Thailand has now committed to increasing its use of renewable energy and it looks like many new things is moving the right direction here in 2017.
Business that utilize Green technology possess a business advantage over their competition.
Advantages include being less reliant upon the grid, cost savings, business plan and a lot more.
WILL SOLAR WORK WHERE YOU LIVE?
Some locations are better than many others. Each hour of full sun will typically create about 225 Watts per square meter of panels. You will be generating electricity for all daylight hours but when your roof is shaded within the day by hills, or not obtaining full sun because of clouds, then you will receive less Total Sun Hours and less power. Consequently, if clouds are blocking 50\% of the entire power of the sun then you will get one Full Sun Hour out in two hours. Thailand’s full sunlight hours ranges from around 4.5 hours in rainy season and 7 hours in the dry season. The average for the South of Thailand is about 5.5 hours.
Irradiance is a measure of the sun’s power available at the surface of the planet and it averages about 1000 watts per square meter. Thailand’s average is about 1700 watts per square meter that just shows how strong the sun is at Thailand. With average crystalline solar cell efficiencies around 15%, so we could expect to generate approximately 225W per square meter of solar cells positioned in full sun. Insolation is a measure of the available energy in sunlight and is expressed in terms of “full sun hours” (i.e. 4 full sun hours = 4 hours of sunlight with an irradiance level of 1000 watts per square meter).
Customers on Residential Housing Estates that have their monthly utility bill (electricity) from the growth may also benefit from Solar PV execution even if no FIT (feed in tariff) or PPA (power purchase agreement) is available…
Although it’s proven that the electrical meter may spin backwards if excessive energy is created this isn’t accepted from the local authority if you receive your monthly bill directly from the PEA. But if your electrical meter / billing comes directly from the PEA or development then a proportion of the dwellings can easily have Solar PV installed and also reap the benefits.
So our rule of thumb would be a 7 year return BUT….
Each installation and customer differs, no two payback intervals are exactly the same. But we could still talk in averages.
Example 1; A Business operating in the hours of 9 to 5 i.e. a college or factory would get a 7 year return since we’ll be saving them up to 100 percent of the use. This may also work the same for Residential properties who consume a vast majority of their electric during hours.
Example 2; A company or household where most power will be consumed after the sun has set could cost a little bit more due to the batteries that would be needed to store the electricity to be consumed at night time. However for this system, you may actually back up particular loads for when a power outage happens. i.e. Fans, Lights, TV, Water pumps….
There are a number of panel combinations to choose from depending on the amount of power which you would like to generate. Most businesses will perform a site survey for you and evaluate how much electricity you will need then make a recommendation based on that figure.
A system with 8 solar panels will likely be sufficient to power a refrigerator, tv, satellite dish, radio and a number of lamps. The 32 panel process is complete and will provide power for the entire residence. When purchasing the panels you will also be getting everything needed for the installation including the control, wiring and support construction. The main benefits of the solar power system would be that there’s not any waste produced and there are no gases discharged into the air.
It’s also possible to have solar panels installed that simply heat the hot water or run the radiators, rather than power a lot of different electric appliances. Solar powered air conditioning is a popular option in Thailand in which the temperatures are relatively high all year round in many regions.