Hualien City, Taiwan (latitude: 23.9807, longitude: 121.6115) is a suitable location for solar power generation due to its potential for consistent energy production year-round. The average daily energy output per kW of installed solar in each season is as follows: 6.04 kWh in summer, 4.31 kWh in autumn, 3.38 kWh in winter, and 5.10 kWh in spring.
Situated within the Northern Subtropics, Hualien City benefits from increased sunlight hours and intensity during the summer months compared to other seasons, resulting in higher power output from solar PV systems during this time.
Despite the region's high humidity levels that could potentially affect the performance of a solar PV system, Hualien City remains an advantageous location for solar installations due to its overall capacity for power generation throughout the year.
To optimize energy production at this location, it is recommended that fixed panel installations be tilted at an angle of 20 degrees facing south. This orientation will maximize exposure to sunlight and ensure efficient energy capture.
In order to mitigate any potential negative effects caused by local environmental factors such as humidity or topography on solar production at this site, proper maintenance and monitoring should be implemented alongside appropriate installation techniques designed specifically for these conditions. By taking these preventative measures into account when installing a solar PV system in Hualien City, greater energy production can be achieved despite any challenges posed by local factors.
Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 36 locations across Taiwan. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Taiwan by location
Solar output per kW of installed solar PV by season in Hualien City
Seasonal solar PV output for Latitude: 23.9807, Longitude: 121.6115 (Hualien City, Taiwan), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:




 
Ideally tilt fixed solar panels 20° South in Hualien City, Taiwan
To maximize your solar PV system's energy output in Hualien City, Taiwan (Lat/Long 23.9807, 121.6115) throughout the year, you should tilt your panels at an angle of 20° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.

Seasonally adjusted solar panel tilt angles for Hualien City, Taiwan
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Hualien City, Taiwan. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° South tilt angle throughout the year.
Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
---|---|---|---|
8° South in Summer | 28° South in Autumn | 39° South in Winter | 16° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Hualien City, Taiwan
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Hualien City, Taiwan.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Hualien City, Taiwan
The topography around Hualien City, Taiwan is generally flat and low-lying. The terrain is characterized by rolling hills and plains, with some higher peaks in the surrounding mountains. Areas that would be most suitable for large-scale solar PV installations include open fields with unobstructed access to direct sunlight, as well as flat rooftops on buildings or other structures. Additionally, areas near rivers or lakes could also be suitable due to their wide expanses of open space and minimal shade from trees or other obstructions.
Taiwan solar PV Stats as a country
Taiwan ranks 17th in the world for cumulative solar PV capacity, with 7,700 total MW's of solar PV installed. Each year Taiwan is generating 327 Watts from solar PV per capita (Taiwan ranks 12th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Taiwan?
Yes, there are incentives for businesses wanting to install solar energy in Taiwan. The Taiwanese government offers a number of financial incentives and subsidies for businesses that install solar energy systems. These include tax credits, grants, low-interest loans, and feed-in tariffs. Additionally, the government has implemented a Renewable Energy Certificate (REC) system which allows businesses to trade renewable energy certificates with other companies or organizations in order to receive additional financial benefits.
Do you have more up to date information than this on incentives towards solar PV projects in Taiwan? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 7th of November 2022
Last Updated: Wednesday 26th of June 2024
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.