Below is the average daily output per kW of Solar PV installed for each season, along with the ideal solar panel tilt angles calculated for various locations in Vietnam. Click on any location for more detailed information.

Explore the solar photovoltaic (PV) potential across 41 locations in Vietnam, from Cao Bang to Cà Mau. We have utilized empirical solar and meteorological data obtained from NASA's POWER API to determine solar PV potential and identify the optimal panel tilt angles for these locations.

Feel free to contact us if you wish for us to include a general Solar PV Analysis for a certain city or location not already listed here for Vietnam. We will be more than happy to manually add it for you.

Location	Subdivision	Latitude	Longitude	kWh/day Summer	kWh/day Autumn	kWh/day Winter	kWh/day Spring	Panel Tilt Angle
Cao Bang	Tinh Cao Bang	22.6652	106.2541	5.72	3.96	3.08	3.69	19° South
Thai Nguyen	Thái Nguyên Province	21.5941	105.8432	5.82	3.97	3.02	3.97	18° South
Vĩnh Phúc Province	Vĩnh Phúc Province	21.3339	105.5693	5.82	3.97	3.02	3.97	18° South
Bắc Giang	Bắc Giang Province	21.2749	106.1933	5.53	3.97	3.24	3.63	18° South
Bac Ninh	Bắc Ninh Province	21.1858	106.0746	5.53	3.97	3.24	3.63	18° South
Hanoi	Hanoi	21.0313	105.8516	5.82	3.97	3.02	3.97	17° South
Ha Long	Quảng Ninh	20.9423	107.0727	5.96	4.39	3.71	4.69	18° South
Hải Dương	Hải Dương Province	20.9413	106.3373	5.74	4.06	3.54	4.33	18° South
Haiphong	Haiphong	20.8559	106.6697	5.74	4.06	3.54	4.33	18° South
Hung Yen	Tinh Hung Yen	20.65	106.0667	5.74	4.06	3.54	4.33	18° South
Phủ Lý	Hà Nam Province	20.5411	105.9139	5.82	3.84	3.15	4.44	17° South
Thái Bình	Thái Bình Province	20.4487	106.3343	5.77	4.03	3.49	4.33	17° South
Thanh Hóa	Thanh Hóa Province	19.797	105.7674	6.10	3.88	3.32	4.72	16° South
Quán Hành	Nghệ An Province	18.783	105.6477	5.91	3.70	3.46	4.93	15° South
Vinh	Nghệ An Province	18.6728	105.6963	5.91	3.70	3.46	4.93	15° South
Hà Tĩnh	Hà Tĩnh Province	18.342	105.9076	5.91	3.70	3.46	4.93	15° South
Quang Tri	Quảng Trị Province	16.7516	107.1972	6.06	3.73	3.26	5.93	12° South
Huế	Thừa Thiên Huế Province	16.4704	107.6009	6.06	3.73	3.26	5.93	12° South
Da Nang	Da Nang	16.0685	108.2215	6.67	4.32	3.80	6.87	12° South
Quảng Ngãi	Quảng Ngãi Province	15.1112	108.7945	6.36	3.88	3.58	6.62	11° South
Buôn Hồ	Đắk Lắk	12.956	108.2965	5.59	4.00	4.63	6.54	11° South
Buon Ma Thuot	Đắk Lắk	12.6674	108.0528	5.57	4.02	4.67	6.51	11° South
Nha Trang	Khánh Hòa Province	12.2539	109.1832	6.50	4.33	4.52	6.73	9° South
Da Lat	Lâm Đồng Province	11.9444	108.4441	5.99	4.55	5.73	6.72	11° South
Bình Dương Province	Bình Dương Province	11.17	106.668	5.95	5.05	5.74	6.45	10° South
Thu Dau Mot	Bình Dương Province	10.9794	106.6485	5.61	4.91	5.57	6.30	10° South
Bien Hoa	Đồng Nai Province	10.9413	106.8221	5.58	4.92	5.61	6.26	10° South
Ho Chi Minh City		10.8230989	106.6296638	5.58	4.92	5.61	6.26	10° South
Quận Hai	Ho Chi Minh	10.7915	106.7567	5.61	4.91	5.57	6.30	10° South
Quận Một	Ho Chi Minh	10.7826	106.6959	5.61	4.91	5.57	6.30	10° South
Quận Ba	Ho Chi Minh	10.7815	106.694	5.61	4.91	5.57	6.30	10° South
Quận Mười	Ho Chi Minh	10.7609	106.6633	5.61	4.91	5.57	6.30	10° South
Quận Bảy	Ho Chi Minh	10.7106	106.7332	5.61	4.91	5.57	6.30	10° South
Long Xuyen	An Giang	10.3841	105.4386	5.50	4.92	5.52	6.03	10° South
Vũng Tàu	Bà Rịa–Vũng Tàu Province	10.3444	107.0875	5.95	5.10	5.79	6.82	9° South
Vĩnh Long	Vĩnh Long Province	10.2502	105.9651	5.50	4.92	5.52	6.03	10° South
Can Tho	Can Tho	10.0361	105.7941	5.52	4.92	5.48	6.06	9° South
Rach Gia	Kiên Giang Province	10.0149	105.0899	5.50	4.92	5.52	6.03	9° South
Sóc Trăng	Sóc Trăng Province	9.6056	105.9799	5.11	4.75	5.36	6.07	9° South
Vĩnh Tường	Bạc Liêu Province	9.3739	105.5137	5.11	4.75	5.36	6.07	9° South
Cà Mau	Cà Mau Province	9.1771	105.1464	5.11	4.75	5.36	6.07	9° South

Solar Panel Tilt Angle in Vietnam

So far based on Solar PV Analysis of 41 locations in Vietnam, we've discovered that the ideal angle to tilt solar PV panels in Vietnam varies between 19° from the horizontal plane facing South in Cao Bang and 9° from the horizontal plane facing South in Cà Mau.

These tilt angles are optimised for maximum annual PV output at each location for fixed-panel solar PV installations. If you click on one of the locations above, there is further detail on ideal seasonal tilt angles as well (in case your solar panels are adjustable).

Depending on where you are based in Vietnam, the ideal angle to tilt your solar panels will vary by approx 10 degrees (between 19° from the horizontal plane facing South and 9° from the horizontal plane facing South).

Vietnam solar PV Stats as a country

Vietnam ranks 9th in the world for cumulative solar PV capacity, with 16,660 total MW's of solar PV installed. Each year Vietnam is generating 171 Watts from solar PV per capita (Vietnam ranks 30th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Vietnam?

Yes, there are several incentives for businesses wanting to install solar energy in Vietnam. The government has implemented a number of policies and programs to encourage the development of renewable energy sources, including solar energy. These include tax exemptions, preferential loans, and feed-in tariffs for electricity generated from solar power plants. Additionally, the government has established a Renewable Energy Development Fund to provide financial support for projects related to renewable energy sources such as solar power.

Do you have more up to date information than this on incentives towards solar PV projects in Vietnam? Please reach out to us and help us keep this information current. Thanks!

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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide

Elevate the performance of your solar PV installation by utilizing our thorough guide. Determine the best panel tilt angle using real-world data, debunk prevalent misconceptions and grasp how geographical location influences solar power yield.