Why do solar PV modules cost so much?

Dramatic falls in the cost of energy from solar PV have been driven by the increasing cost competitiveness of the PV module itself, with crystalline silicon (c-Si) PV the dominant technology. In the last decade, the installed capacity of PV modules has grown by an order of magnitude.

Are solar PV supply chains cost-competitive?

Currently, the cost competitiveness of existing solar PV manufacturing is a key challenge to diversifying supply chains. China is the most cost-competitive location to manufacture all components of the solar PV supply chain. Costs in China are 10% lower than in India, 20% lower than in the United States, and 35% lower than in Europe.

Are solar PV prices going down?

Nonetheless, rapid price declines in solar PV have not been without controversy. China, for example, has played an outsized role in scaling up the mass production of solar PV cells and modules, comprising 78% of global production in 2021 9, 10 (Fig. 1).

How are PV production costs modeled?

The costs of materials, equipment, facilities, energy, and labor associated with each step in the production process are individually modeled. Input data for this analysis method are collected through primary interviews with PV manufacturers and material and equipment suppliers.

Is a domestic manufacturing base in solar PV a good investment?

A domestic manufacturing base in solar PV may provide other benefits besides direct employment worthy of future study. Our model does not incorporate any spillover benefits to adjacent industries, such as semiconductors and electronics.

What is solar photovoltaics?

Solar photovoltaics (PV) is now recognised as offering the lowest cost of electricity in history, consistently cheaper than new coal-fired or gas-fired power plants in most countries , .