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 152 locations in Vietnam, from Hà Giang 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.

If you have questions, feel free to contact us.

Location	Subdivision	Latitude	Longitude	kWh/day Summer	kWh/day Autumn	kWh/day Winter	kWh/day Spring	Panel Tilt Angle
Hà Giang	Hà Giang Province	22.8315	104.9847	5.39	3.77	2.59	4.50	19° South
Cao Bang	Tinh Cao Bang	22.6652	106.2541	5.72	3.96	3.08	3.69	19° South
Lào Cai	Lào Cai Province	22.4883	103.9736	4.84	3.91	3.24	5.36	19° South
Bac Kan	Bắc Kạn Province	22.1467	105.84	5.69	3.90	2.74	4.05	18° South
Lai Châu	Điện Biên Province	22.0713	103.1628	4.84	3.91	3.24	5.36	19° South
Bản Hát Nam	Lai Châu Province	22.0369	103.8572	4.84	3.91	3.24	5.36	19° South
Lang Son	Lạng Sơn Province	21.8508	106.7592	5.56	3.96	3.19	3.61	19° South
Tuyên Quang	Tuyên Quang Province	21.8212	105.2218	5.86	3.94	2.97	3.95	18° South
Hồng Bàng	Yên Bái Province	21.7624	104.9425	5.33	3.76	3.11	4.65	18° South
Yên Bái	Yên Bái Province	21.7198	104.9105	5.33	3.76	3.11	4.65	18° South
Thai Nguyen	Thái Nguyên Province	21.5941	105.8432	5.82	3.97	3.02	3.97	18° South
Tân Tiên	Phú Thọ Province	21.5711	105.0993	5.86	3.94	2.97	3.95	18° South
Phú Thọ	Phú Thọ Province	21.3956	105.2259	5.86	3.94	2.97	3.95	18° South
Vĩnh Phúc Province	Vĩnh Phúc Province	21.3339	105.5693	5.82	3.97	3.02	3.97	18° South
Sơn La	Sơn La Province	21.3248	103.9136	4.98	4.17	3.76	5.62	19° South
Việt Trì	Phú Thọ Province	21.3192	105.4031	5.86	3.94	2.97	3.95	18° South
Vĩnh Yên	Vĩnh Phúc Province	21.311	105.5938	5.86	3.94	2.97	3.95	17° South
Bắc Giang	Bắc Giang Province	21.2749	106.1933	5.53	3.97	3.24	3.63	18° South
Việt Yên District	Bắc Giang Province	21.2683	106.1346	5.56	3.96	3.19	3.61	18° South
Quảng Ninh	Hanoi	21.262	105.801	5.86	3.94	2.97	3.95	17° South
Phù Yên	Sơn La Province	21.2596	104.6511	5.33	3.76	3.11	4.65	18° South
Hoàng Mai	Bắc Giang Province	21.2467	106.1158	5.56	3.96	3.19	3.61	18° South
Phúc Yên	Vĩnh Phúc Province	21.2373	105.7002	5.86	3.94	2.97	3.95	17° South
Vĩnh Tường	Vĩnh Phúc Province	21.22	105.511	5.86	3.94	2.97	3.95	17° South
Bac Ninh	Bắc Ninh Province	21.1858	106.0746	5.53	3.97	3.24	3.63	18° South
Sơn La Province	Sơn La Province	21.1695	104.0029	5.33	3.76	3.11	4.65	18° South
Phủ Từ Sơn	Bắc Ninh Province	21.0966	105.968	5.86	3.94	2.97	3.95	17° South
Lãng Ngâm	Bắc Ninh Province	21.0829	106.1432	5.56	3.96	3.19	3.61	18° South
Gia Lâm Pho	Hanoi	21.0493	105.8806	5.86	3.94	2.97	3.95	17° South
Cổ Giang	Hanoi	21.0443	106.0131	5.56	3.96	3.19	3.61	18° South
Thành Phố Uông Bí	Quảng Ninh	21.0359	106.7674	5.56	3.96	3.19	3.61	18° South
Cầu Giấy	Hanoi	21.0319	105.8028	5.86	3.94	2.97	3.95	17° South
Hanoi	Hanoi	21.0313	105.8516	5.82	3.97	3.02	3.97	17° South
Vĩnh Phúc	Hanoi	21.029	105.8192	5.86	3.94	2.97	3.95	17° South
Hoàn Kiếm	Hanoi	21.0289	105.8524	5.86	3.94	2.97	3.95	17° South
Cẩm Phả	Quảng Ninh	21.0196	107.2771	5.44	4.05	3.49	3.63	18° 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
Huyện Mộc Châu	Sơn La Province	20.8661	104.7245	5.68	3.88	3.45	5.16	18° South
Haiphong	Haiphong	20.8559	106.6697	5.74	4.06	3.54	4.33	18° South
Mộc Châu	Sơn La Province	20.8486	104.6223	5.68	3.88	3.45	5.16	18° South
Khoái Châu	Hưng Yên Province	20.8417	105.975	5.82	3.85	3.14	4.43	17° South
Hưng Yên Province	Hưng Yên Province	20.817	106.0538	5.77	4.03	3.49	4.30	18° South
Hòa Bình	Hòa Bình Province	20.8161	105.3441	5.82	3.85	3.14	4.43	17° South
Kiến An	Haiphong	20.8073	106.6293	5.77	4.03	3.49	4.30	18° South
Cát Hải	Haiphong	20.7988	106.913	5.77	4.03	3.49	4.30	18° South
Thanh Miện	Hải Dương Province	20.7843	106.2465	5.77	4.03	3.49	4.30	18° South
Hung Yen	Tinh Hung Yen	20.65	106.0667	5.74	4.06	3.54	4.33	18° South
Hưng Yên	Hưng Yên Province	20.6473	106.047	5.77	4.03	3.49	4.30	17° 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
Nam Định	Nam Định Province	20.4353	106.1784	5.77	4.03	3.49	4.30	17° South
Tiền Hải	Thái Bình Province	20.4056	106.5036	5.77	4.03	3.49	4.30	17° South
Ninh Bình	Ninh Bình Province	20.253	105.9749	5.82	3.84	3.15	4.44	17° South
Nam Định Province	Nam Định Province	20.2472	106.252	5.77	4.03	3.49	4.30	17° South
Thanh Hóa	Thanh Hóa Province	19.797	105.7674	6.10	3.88	3.32	4.72	16° South
Yên Thành	Nghệ An Province	18.9972	105.4792	5.94	3.68	3.41	4.95	15° 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
Đồng Nại	Hà Tĩnh Province	18.105	106.34	6.46	3.91	3.14	5.39	14° South
Hoàn Lão	Quảng Bình Province	17.5828	106.5329	5.91	3.54	2.96	5.43	13° South
Quảng Bình Province	Quảng Bình Province	17.5	106.3333	5.91	3.54	2.96	5.43	13° South
Dong Hoi	Quảng Bình Province	17.4702	106.626	5.91	3.54	2.96	5.43	13° South
Gio Linh	Quảng Trị Province	16.9349	107.0865	6.08	3.73	3.26	5.96	13° South
Quang Tri	Quảng Trị Province	16.7516	107.1972	6.06	3.73	3.26	5.93	12° South
thị xã Quảng Trị	Quảng Trị Province	16.7501	107.1823	6.08	3.73	3.26	5.96	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
Điện Bàn	Quảng Nam Province	15.8869	108.2531	6.40	3.87	3.57	6.64	12° South
Quảng Nam Province	Quảng Nam Province	15.5843	107.9144	5.42	4.05	4.13	6.06	13° South
Quảng Ngãi	Quảng Ngãi Province	15.1112	108.7945	6.36	3.88	3.58	6.62	11° South
Kon Tum	Kon Tum	14.3856	107.983	5.21	4.71	5.75	6.50	14° South
An Giang	Bình Định Province	14.35	109.1	6.71	4.27	4.27	7.02	11° South
Pleiku	Gia Lai Province	13.9791	108.0049	5.73	4.15	4.64	6.48	12° South
An Khê	Gia Lai Province	13.9527	108.6509	5.73	4.15	4.64	6.48	12° South
An Nhơn	Bình Định Province	13.8813	109.1038	6.53	4.23	4.33	6.87	11° South
Kông Chro	Gia Lai Province	13.7757	108.5249	5.73	4.15	4.64	6.48	12° South
Tuy Hoa	Phú Yên Province	13.0983	109.3238	6.53	4.23	4.33	6.87	10° South
Buôn Hồ	Đắk Lắk	12.956	108.2965	5.59	4.00	4.63	6.54	11° South
Đắk Lắk	Đắk Lắk	12.75	108.25	5.59	4.03	4.63	6.53	11° South
Buon Ma Thuot	Đắk Lắk	12.6674	108.0528	5.57	4.02	4.67	6.51	11° South
Diên Khánh	Khánh Hòa Province	12.2552	109.1034	6.52	4.33	4.50	6.76	9° South
Nha Trang	Khánh Hòa Province	12.2539	109.1832	6.50	4.33	4.52	6.73	9° South
Cam Lâm	Khánh Hòa Province	12.1681	109.0694	6.52	4.33	4.50	6.76	9° South
Đăk Nông Province	Đăk Nông Province	12.1635	107.7481	5.79	4.56	5.42	6.43	11° South
Gia Nghĩa	Đăk Nông Province	12.0073	107.6903	5.79	4.56	5.42	6.43	11° South
Da Lat	Lâm Đồng Province	11.9444	108.4441	5.99	4.55	5.73	6.72	11° South
Cam Ranh	Khánh Hòa Province	11.9149	109.1657	6.48	4.54	5.13	6.75	10° South
Lam Ha District	Lâm Đồng Province	11.8158	108.2152	6.01	4.55	5.69	6.74	10° South
Son	Lâm Đồng Province	11.6667	108.3167	6.01	4.55	5.69	6.74	10° South
Hưng Yên	Bình Phước Province	11.6306	106.7319	5.96	5.07	5.75	6.45	11° South
Bảo Lộc	Lâm Đồng Province	11.5488	107.8081	5.51	4.69	5.73	6.42	11° South
Dong Xoai	Bình Phước Province	11.5429	106.8801	5.96	5.07	5.75	6.45	11° South
Tân Tiến	Tây Ninh Province	11.5134	106.162	5.96	5.07	5.75	6.45	11° South
Tân Phú	Bình Phước Province	11.4512	106.8681	5.96	5.07	5.75	6.45	11° South
Tây Ninh	Tây Ninh Province	11.3085	106.0948	5.96	5.07	5.75	6.45	11° South
Huyện Bàu Bàng	Bình Dương Province	11.267	106.6131	5.96	5.07	5.75	6.45	11° South
Bình Dương Province	Bình Dương Province	11.17	106.668	5.95	5.05	5.74	6.45	10° South
Bến Cát	Bình Dương Province	11.1484	106.6003	5.96	5.07	5.75	6.45	10° South
Gò Dầu	Tây Ninh Province	11.0871	106.2596	5.96	5.07	5.75	6.45	10° South
Ninh Thuận	Bình Thuận Province	11.0057	108.1139	6.01	4.55	5.69	6.74	10° South
Tân Phước Khánh	Bình Dương Province	11.0057	106.7128	5.96	5.07	5.75	6.45	10° South
Đồng Nai Province	Đồng Nai Province	11	107.1667	5.51	4.69	5.73	6.42	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
Phan Thiết	Bình Thuận Province	10.9293	108.0976	6.25	4.95	5.78	7.05	10° South
Thuận An	Bình Dương Province	10.9209	106.7045	5.61	4.92	5.58	6.29	10° South
Bình An	Bình Dương Province	10.8965	106.8059	5.61	4.92	5.58	6.29	10° South
Quận Chín	Ho Chi Minh	10.8361	106.7694	5.61	4.92	5.58	6.29	10° South
Ho Chi Minh City		10.8230989	106.6296638	5.58	4.92	5.61	6.26	10° South
Gò Vấp	Ho Chi Minh	10.8126	106.678	5.61	4.92	5.58	6.29	10° South
Tam Bình	Ho Chi Minh	10.8012	106.6639	5.61	4.92	5.58	6.29	10° South
Quận Bình Thạnh	Ho Chi Minh	10.7976	106.6993	5.61	4.92	5.58	6.29	10° South
Quận Hai	Ho Chi Minh	10.7915	106.7567	5.61	4.91	5.57	6.30	10° South
Quận Phú Nhuận	Ho Chi Minh	10.7908	106.6815	5.61	4.92	5.58	6.29	10° South
Quận Tân Phú	Ho Chi Minh	10.7848	106.6349	5.61	4.92	5.58	6.29	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 Bốn	Ho Chi Minh	10.7673	106.7094	5.61	4.92	5.58	6.29	10° South
Phú Thọ Hòa	Ho Chi Minh	10.7659	106.638	5.61	4.92	5.58	6.29	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
Nhà Bè	Ho Chi Minh	10.6981	106.7433	5.61	4.92	5.58	6.29	10° South
Bình Phước	Ho Chi Minh	10.6668	106.7732	5.61	4.92	5.58	6.29	10° South
Can Giuoc	Long An Povince	10.6112	106.6701	5.61	4.92	5.58	6.29	10° South
Bà Rịa–Vũng Tàu Province	Bà Rịa–Vũng Tàu Province	10.586	107.2475	5.97	5.11	5.75	6.85	10° South
Đồng Tháp Province	Đồng Tháp Province	10.5848	105.6338	5.53	4.93	5.48	6.06	10° South
An Giang Province	An Giang Province	10.5015	105.1706	5.53	4.93	5.48	6.06	10° South
Thành Phố Bà Rịa	Bà Rịa–Vũng Tàu Province	10.5007	107.167	5.97	5.11	5.75	6.85	10° South
Mỹ Bình	An Giang Province	10.4907	105.4045	5.53	4.93	5.48	6.06	10° South
Cao Lanh	Đồng Tháp Province	10.4534	105.6331	5.53	4.93	5.48	6.06	10° South
Long An	Long An Povince	10.422	106.422	5.61	4.92	5.58	6.29	10° South
Tri Tôn	An Giang Province	10.4212	105.0042	5.53	4.93	5.48	6.06	10° South
Tiền Giang	Tiền Giang	10.4	106.3	5.61	4.92	5.58	6.29	10° South
Long Xuyen	An Giang	10.3841	105.4386	5.50	4.92	5.52	6.03	10° South
Lấp Vò	Đồng Tháp Province	10.3628	105.5174	5.53	4.93	5.48	6.06	10° South
Vũng Tàu	Bà Rịa–Vũng Tàu Province	10.3444	107.0875	5.95	5.10	5.79	6.82	9° South
Cái Bè	Tiền Giang	10.3362	106.0353	5.61	4.92	5.58	6.29	10° South
Sa Dec	Đồng Tháp Province	10.2932	105.7541	5.53	4.93	5.48	6.06	10° South
Vĩnh Long	Vĩnh Long Province	10.2502	105.9651	5.50	4.92	5.52	6.03	10° South
Bến Tre	Bến Tre Province	10.2344	106.3841	5.61	4.92	5.58	6.29	10° South
Phu Quoc	Kiên Giang Province	10.2159	103.9664	4.92	4.87	5.73	5.94	10° South
Bình Dương	Can Tho	10.0461	105.721	5.53	4.93	5.48	6.06	9° South
Can Tho	Can Tho	10.0361	105.7941	5.52	4.92	5.48	6.06	9° South
Quận Ninh Kiều	Can Tho	10.0323	105.7639	5.53	4.93	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
Thành phố Trà Vinh	Trà Vinh Province	9.9384	106.3455	5.71	5.03	5.71	6.65	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
Bạc Liêu	Bạc Liêu Province	9.2887	105.7309	5.12	4.76	5.35	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 152 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 Hà Giang 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.