Banepa, Bagmati Province, Nepal, situated in the Northern Sub Tropics, offers a promising location for solar energy generation throughout the year. With its geographical coordinates at 27.634° N latitude and 85.5144° E longitude, this area experiences varying levels of solar potential across different seasons.

Seasonal Solar Performance

The solar energy output in Banepa demonstrates interesting patterns across the four meteorological seasons. Spring emerges as the most productive period, with an impressive 6.06 kWh per day for each kilowatt of installed solar capacity. Summer and autumn show similar performance levels, generating 4.62 kWh/day and 4.63 kWh/day respectively. Winter experiences a slight dip in production, yielding 4.33 kWh/day, but still maintains a respectable output.

Optimal Panel Positioning

For fixed solar panel installations in Banepa, Bagmati Province, the ideal tilt angle to maximize year-round energy production is 27 degrees facing south. This angle has been calculated considering various factors, including daily solar elevation angles, optimal panel tilt, and NASA's solar irradiance data, while also accounting for the Earth's elliptical orbit.

Environmental Considerations

While Banepa's location is generally favorable for solar energy production, there are some environmental factors to consider. The region experiences a monsoon season, typically from June to September, which can lead to increased cloud cover and potentially reduced solar output during this period. Additionally, the area's proximity to the Himalayas may result in occasional dust storms, which could temporarily decrease panel efficiency.

Mitigation Strategies

To address these challenges and ensure optimal energy production, several preventative measures can be implemented during solar installation:

• Use high-quality, weather-resistant panels that can withstand heavy rainfall and potential dust accumulation.
• Install an efficient drainage system to prevent water accumulation on panels during the monsoon season.
• Implement a regular cleaning schedule, particularly before and after the monsoon season, to remove dust and debris.

By taking these factors into account and implementing appropriate measures, Banepa can effectively harness its solar potential, making it a suitable location for year-round solar energy generation.

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 40 locations across Nepal. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Nepal by location

Solar output per kW of installed solar PV by season in Banepa

Seasonal solar PV output for Latitude: 27.634, Longitude: 85.5144 (Banepa, Nepal), 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 27° South in Banepa, Nepal

To maximize your solar PV system's energy output in Banepa, Nepal (Lat/Long 27.634, 85.5144) throughout the year, you should tilt your panels at an angle of 27° 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 Banepa, Nepal

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 Banepa, Nepal. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 27° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
11° South in Summer	33° South in Autumn	43° South in Winter	22° 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 Banepa, Nepal

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 Banepa, Nepal.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Banepa, Nepal

Banepa, a city in Nepal, is situated in a region characterized by diverse and challenging topography. The area surrounding Banepa features a mix of hilly terrain, valleys, and some flat areas. The city itself lies in a valley, nestled between hills that rise to varying heights. These hills are part of the broader Mahabharat Range, which is a significant geological feature of central Nepal. To the north of Banepa, the landscape becomes increasingly rugged, with steeper hills and deeper valleys. This area gradually transitions into the foothills of the Himalayas, offering dramatic changes in elevation over relatively short distances. The southern part of the region, in contrast, tends to be somewhat flatter, with gentler slopes and more open spaces. Rivers and streams crisscross the area, carving out valleys and creating natural boundaries between different topographical features. The Punyamata River, which flows through Banepa, has played a crucial role in shaping the local landscape over time.

Potential for Large-Scale Solar PV

When considering areas near Banepa for large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would combine favorable topography with good solar exposure and accessibility. The flatter areas to the south of Banepa present the most promising opportunities for large-scale solar PV projects. These regions offer more extensive, open spaces that can accommodate large arrays of solar panels. The gentler slopes in this direction also simplify construction and maintenance processes, making it easier to optimize panel orientation for maximum solar exposure. Some of the wider valley floors near Banepa could also be suitable for solar PV installations, provided they receive adequate sunlight throughout the day and are not overshadowed by surrounding hills. These areas often have the advantage of being closer to existing infrastructure, which can facilitate grid connection and reduce overall project costs. While the hilly areas to the north of Banepa receive ample sunlight, their steep and irregular terrain makes them less ideal for large-scale solar projects. However, these locations might be suitable for smaller, distributed solar installations that can take advantage of south-facing slopes. It's important to note that any large-scale solar PV project in the region would need to carefully consider land use, as much of the flatter, more accessible land is often used for agriculture or urban development. Environmental impact assessments and community consultations would be crucial steps in identifying the most appropriate locations for such projects near Banepa.

Nepal solar PV Stats as a country

Nepal ranks 89th in the world for cumulative solar PV capacity, with 93 total MW's of solar PV installed. This means that 0.10% of Nepal's total energy as a country comes from solar PV (that's 43rd in the world). Each year Nepal is generating 3 Watts from solar PV per capita (Nepal ranks 86th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Nepal?

Yes, there are incentives for businesses wanting to install solar energy in Nepal. The Government of Nepal has implemented a number of policies and programs to promote the use of renewable energy sources such as solar power. These include tax exemptions, subsidies, and other financial incentives for businesses that install solar systems. Additionally, the government has established a Renewable Energy Fund which provides grants to support research and development activities related to renewable energy technologies.

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

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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.