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Q0027

Why can two solar farms of the same size have very different economics?

Primary Category

Solar

Question Type

Economics

Tags

Solar; Economics; Project Development

Short Answer

Two solar farms with the same MW rating can have very different energy production, connection costs, land costs, financing, construction risk and electricity prices. Project value depends on lifetime net cash flow—not nominal capacity.

Why This Matters

Comparing projects using only installed MW or headline construction cost can direct capital toward a weaker site. Investors need to compare the quantity, timing and certainty of saleable electricity against the complete lifecycle cost and risk.

What We Know

Revenue differences

Two identically sized plants may receive different revenue because of:

The Energy Commission announced revised CRESS system-access charges of 20 sen/kWh for firm supply and 40 sen/kWh for non-firm supply during the applicable regulatory period. This illustrates how commercial structure can materially affect project economics. Energy Commission CRESS charge revision

Energy-yield differences

A 100 MW plant does not generate a fixed quantity of energy. Output varies with:

A project generating 5% more saleable energy over decades may be worth substantially more even if its installed capacity is identical.

Grid-connection differences

One plant may connect through a short line to a suitable substation. Another may require:

A cheaper parcel of land can become the more expensive project once grid infrastructure is included.

Land and civil-work differences

Relevant differences include:

Technology differences

Projects may use different:

A lower initial equipment price may bring lower yield, greater degradation or higher maintenance.

Financing differences

Economics can change materially because of:

Development and schedule differences

A project completed earlier begins earning sooner. Delays create:

Tax and corporate structure

Different ownership and financing structures can produce different after-tax returns even where plant-level performance is similar.

Better comparison metrics

Compare projects using:

What We Don't Know

Without project-level diligence:

Connected Questions

People & Organisations

Sources

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WHY THESE QUESTIONS MATTER

Where could the next opportunity emerge?

Questions create opportunity. Understanding where the energy transition is heading helps reveal the technologies, projects, capital and expertise that will be needed next.

01

Technology

The solutions that turn open questions into deployable answers — from storage chemistries to grid intelligence.

02

Projects

The pipeline of solar farms, substations and interconnections waiting to be built and financed.

03

Capital

Where investment flows next as the transition reshapes risk, return and the shape of the market.

04

Expertise

The engineers, economists and regulators whose knowledge decides how fast the answers arrive.