SolarFarms autoSolarFarms

Solar energy is one of the fastest-growing renewable energy sources worldwide, leveraging the abundant and cost-effective energy from the sun. While rooftop solar has contributed to this momentum, solar farms, also known as solar power plants, solar panel farms, or solar gardens, have also played an increasingly critical role in scaling clean energy deployment.

Solar Farms at a Glance:

  • A solar farm is a large-scale solar installation, either utility-scale or distributed generation, that sends clean, renewable energy to the electric grid.
  • A 1 MW solar farm can generate roughly as much power as 168 home solar installations
  • Community solar farms allow homeowners and renters to subscribe and receive electricity savings without installing rooftop panels.

What Is a solar farm?

A solar farm is a large-scale installation of solar panels designed to generate electricity that goes directly into the grid. Unlike rooftop solar systems installed on homes or businesses, solar farms are ground-mounted, large in capacity, and intended to produce power at a greater scale.

Solar farms vary in size: small community solar projects might be just a few megawatts (MW), whereas utility-scale solar farms can be up to 1 gigawatt (GW) in capacity.

How Solar Farms Work

Here’s a simplified break down of how a solar farm generates electricity:

  1. Solar panels capture sunlight through photovoltaic (PV) cells.
  2. PV cells convert sunlight into direct current (electricity).
  3. Inverters convertDC into alternating current (AC) electricity, usable for the grid.
  4. AC electricity flows into the utility grid and is distributed to homes and businesses.

There are other components that keep solar farms running smoothly.

  1. Support structures and racking: orient panels for optimal sun exposure.
  2. Wiring, transformers, substations, and grid connection: link the solar farm with existing transmission and distribution infrastructure.
  3. Operations and maintenance (O&M): regular cleaning, inspections, repair or replacement of inverters or wiring, monitoring performance.

Types of Solar Farms

Solar farms can take different forms depending on size, purpose, and technology. Two common types of solar farms include:

Utility-scale Solar Farms:

Utility-scale solar farms scale up to 1 GW, typically spanning multiple acres of land.

There are over 176,000 megawatts of operating utility-scale solar, with an additional 109,000 megawatts under development.

The energy from utility-scale solar projects is sold to utility buyers through power purchase agreements (PPAs), though occasionally the farm can be owned by the utility. The utility then distributes the energy to customers, both commercial and residential, that are connected to the grid.

Distributed Generation Solar Farms:

Distributed generation projects are located close to the point of electricity use.

Community solar farms are the most common form of DG and enable customers to access solar without installing rooftop panels.

Distributed generation projects help improve grid reliability and resilience in our energy infrastructure.

Distributed generation project sizes can range anywhere from small residential rooftop installations to solar projects large enough to provide clean energy for an entire community.

Benefits of Solar Farms

There are many advantages to consider when it comes to solar farms.

  • Clean, renewable energy: solar farms generate electricity without greenhouse gas emissions during operation.
  • Scalability: utility-scale farms can produce very large amounts of power.
  • Lower cost per kilowatt-hour: compared to smaller or distributed systems, solar farms can generate energy at a lower cost thanks to economies of scale.
  • Job creation & economic development: during construction, operations, and through land lease payments, solar farms help stimulate local economies.
  • Energy security & grid resilience: more distributed and diversified energy, particularly from an abundant renewable source, helps stabilize local electric grids.
  • Long lifespan: with projects typically lasting between 25-25 years, offering decades of reliable clean power.

Challenges of Solar Farms

While there are many advantages, it is also important to consider that there are challenges that come with solar farms as well.

  • Permitting & regulatory hurdles: site approvals, zoning, environmental reviews, interconnection agreements can complicate early stages of solar farm development.
  • Upfront capital costs: even though costs per watt are dropping, the initial investment can still remain high. It is important to note, however, that the return on investment is also quite substantial and these costs are typically incurred by solar developers, not individuals.
  • Land requirements: effective solar farm development requires significant acreage which is not realistic for everyone. At Nexamp we require at least 5 acres for project development.

Frequently Asked Questions About Solar Farms

How much land is required for a solar farm?

Land requirements vary depending on the solar developer and market. At Nexamp, we typically require parcels to be at least 5 acres and rooftops to be at least 40,000 square feet.

Can solar farms operate in cloudy or rainy climates?

Yes. Solar farms still generate power in cloudy or rainy conditions, though output is highest on sunny days. 

How long do solar farms last?

Most projects operate for 20–35 years before decommissioning or repowering.

What happens to solar farms at the end of their lifecycle?

Decommissioning processes vary depending on the developer of the solar project. At Nexamp, we remove the system and all materials, recycle the solar panels, and restore the area back to its original condition.

How much power can a solar farm generate?

How much power a solar farm can generate depends on the size of the solar farm and the efficiency of the solar panels. Generally, each acre of solar panels on the farm will generate over a hundred MWh of energy annually. 

Do you need planning permission for a solar farm?

Yes. Developers must secure permits, zoning approvals, and environmental reviews before beginning construction.

How long does construction take?

Once permitting is approved by both the electrical and building inspectors, construction can begin. Depending on how large the solar farm is and how many solar workers are involved, solar farm development can take anywhere between 3–4 months, weather permitting. After construction, tests are conducted to ensure the solar farm is working safely and properly.

How much land is required for a solar farm?

Land requirements vary depending on the solar developer and market. At Nexamp, we typically require parcels to be at least 5 acres and rooftops to be at least 40,000 square feet.

Can farmers still use land under or around solar farms ?
Yes. Agrivoltaics allows solar farms to coexist with agricultural use like grazing or certain crops between or beneath panels. It can provide additional income and reduce land-use trade-offs.

Is a solar farm a good investment?

Landowners are recognizing the immense opportunity that solar leasing provides to their business without significantly restricting their agricultural capacity. Many are turning to solar farm development as an alternative to more permanent development, such as housing subdivisions or shopping plazas.

Solar farms bring financial security in the form of recurring lease revenue, in addition to supporting a landowner’s or farmer’s operation. You can learn more about hosting a solar farm here.

At Nexamp, we firmly believe in the value of solar farms in democratizing access to clean energy while supporting nationwide decarbonization efforts as well. To learn more about how solar farms can benefit you, check out our guide to community solar!