Fairways to Megawatts: An Industrial Site-Selection Comparison of Japan's Solar Land Options

Japan's utility-scale solar build-out is running on a surplus asset left over from a collapsed bubble: closed golf courses. A Bloomberg analysis counts 9 percent of the country's utility-scale capacity on former fairways, because flat, cheap, grid-linked land is otherwise scarce in mountainous and densely populated Japan. Measured against foothill clearing or unusable farmland, old courses score highest on consent speed and community acceptance; sculpted terrain and curtailment exposure are the costs nobody advertises.

Why are former golf courses turning into solar sites in Japan?

Because no comparable land bank is left. Japan is mountainous and densely populated, so land available for large solar farms is scarce, and that scarcity has pushed developers to erect arrays on many now-disused golf courses, which spread widely during the country's 1980s economic boom before falling out of favour and closing in numbers.

The trigger was nuclear policy rather than solar economics. After the 2011 Fukushima disaster, public outcry drove Japan to close dozens of nuclear reactors in plants that once supplied a third of Japan's electricity. To compensate for the lost output, the government started offering generous incentives to solar developers, which resulted in a wave of new large installations.

That incentive has a verifiable start date. Japan's feed-in tariff took effect on 1 July 2012 and guaranteed solar projects of 10 kW and above a fixed purchase price of 40 yen per kWh for 20 years, as recorded in legal guidance on the scheme's launch (Jones Day). A bankable 20-year revenue line is what converted empty fairways from a liability into an investable land class.

The pull of new capacity has not faded. Renewables supplied 26.7% of Japan's electricity generation in calendar 2024, with solar alone at 11.4%, according to the Institute for Sustainable Economic Policies. Wind stayed close to 1%, well behind the G7 average per energy data group Ember, so land-based photovoltaics still carry most of the weight behind the official target of 36-38% renewables in the power supply by FY2030 set out in Japan's strategic energy plan (reported by Reuters).

How much of Japan's utility-scale solar actually sits on old courses?

About one tenth of what is built, and a slightly larger share of what is coming.

A Bloomberg analysis found that 9 percent of utility-scale solar capacity in Japan is installed on former golf courses. The forward number is higher: At least 10 percent of announced or currently under-construction utility-scale capacity is located on golf courses, Bloomberg found. Courses once read as symbols of economic ascendance have become one of the few remaining land pools a developer can buy, re-grade and energise without opening a fight over a wooded slope.

Which site type wins: a closed course, abandoned farmland or a forested foothill?

Each archetype trades money against schedule and social risk. The comparison below combines the pattern described in the reporting with standard site-screening logic; treat it as analysis for planning purposes, not as a claim about any single project.

Decision criterion	Former golf course	Abandoned farmland	Foothill / forested slope
Land cost	Usually cheap, sellers motivated by years of losses	Cheap, but ownership fragmentation and contamination can complicate title	Headline price can be very low, before clearing and earthworks
Terrain and civil works	Maintained, largely open ground, but sculpted fairways and mature tree lines require re-profiling	Flat and easy to lay out where soil conditions allow	Heavy cut-and-fill, access roads, drainage works
Grid connection	Often already connected, since courses were built with utility supply	Frequently weak rural feeders	Weakest option; new lines or reinforcement needed
Community and consent risk	Lowest: the land is already used, degraded and unloved	Variable: farming livelihoods and food imagery enter the debate	Highest: forest loss and landslide fear drive organised opposition
Environmental exposure	Turf chemicals, irrigation ponds, drainage layers, stormwater design	Soil contamination in restricted areas	Deforestation, erosion, habitat loss, slope stability
Scale available per site	An 18-hole plot typically supports a multi-tens-of-megawatt park	Only where farmland was made unusable, as around Fukushima	Large but politically expensive

The direction of travel is clear. Some developers pursued solar projects on abandoned farms, including in Fukushima, where damaged nuclear plant contamination left farmland unusable and massive arrays were installed. Large solar farms were also erected in foothills outside Japanese cities; those projects displaced forests and increased landslide risk, fuelling public backlash. Fairways win on process risk, farmland wins on flatness, and slopes win only when nothing else can be found.

What do the reference projects prove?

Kyocera and the Kanoya Osaki Solar Hills, Kagoshima Prefecture

The Kanoya Osaki Solar Hills solar plant in Kagoshima Prefecture, Japan, stands on a former golf course and shows how large the model can run. Partner materials describe a site with peak generating capacity of approximately 100 megawatts, built by a consortium including GF, Kyocera, Kyudenko and Tokyo Century on land that had been designated for a golf course more than 30 years earlier and then abandoned, with commercial operation reported in 2020 and the plant presented as the largest class of facility on the island of Kyushu (GF and Kyocera announcements; Global Energy Monitor project profile).

The same site shows the model's main caveat: geography. A Kyushu plant sits inside Japan's most congested solar grid. The Renewable Energy Institute has reported projected curtailment of solar and wind output in Kyushu approaching nearly 7% of available renewable generation, the worst in the country, and Kyushu's transmission and distribution utility changed its output-suppression method to online proxy curtailment in December 2022 (Kyushu Electric Power ESG Data Book 2024). Cheap land with a constrained feeder is not the bargain it looks like on a spreadsheet.

Ako Mega Solar and the second-generation pipeline

Earlier conversions set the benchmark for how much hardware a course can absorb. The former golf course in Kamigori, Hyogo Prefecture that became the Ako Mega Solar Power Plant holds some 260,000 solar panels spread over at least 76 hectares, the Asahi Shimbun reported, with project databases putting nameplate capacity near 102 megawatts (Power Technology). The pipeline is scaling up, not down: juwi Shizen Energy started construction on a former golf course site in Sanda City, Hyogo Prefecture, on a park rated at about 121 megawatts with expected annual output in the region of 143 million kWh, the developer states.

What are the common misconceptions about golf-course solar?

1. Closed course equals plug-and-play ground. Fairways are sculpted landscapes: undulating profiles, mature tree belts, sub-surface drainage and irrigation infrastructure all have to be surveyed, re-profiled or reused. Expect a layout yield below the theoretical area, and budget for geotechnical and contamination screening that a raw flat plot would not require.
2. Low land price equals low project cost. The saving on land is partly re-spent on civil works and on a permitting calendar that routinely runs into several years once environmental assessment, vegetation review and resident explanation meetings are added.
3. Existing grid connection removes market risk. Grid proximity is a genuine advantage of courses, but in high-penetration regions the binding constraint is curtailment, not connection. Kyushu's suppression record is the working example.
4. Siting on a course automatically avoids opposition. It avoids the forest-clearing fight, which is why backlash moved to foothills outside Japanese cities. It does not avoid municipal rules: Nagano Prefecture's ordinance on solar business in harmony with local communities, in force since April 2024, requires permission or notification for projects of 10 kW and above that involve clearing forest, and obliges developers to hold briefings for residents (Nagano Prefecture official site). Research by the Renewable Energy Institute had earlier pointed out that land-use regulation was most lenient in forest areas, which is exactly where the friction accumulated.

How should developers, plant owners and buyers act on this?

1. Screen the pipeline, not just the parcel. If a region's announced capacity is already concentrated on courses, with At least 10 percent of national utility-scale pipeline on fairways, expect competition for the best-connected sites and price accordingly.
2. Run a terrain and drainage study before any land agreement. Module layout efficiency, cut-and-fill volumes and stormwater reuse on old irrigation systems decide whether a course is cheap or merely large.
3. Model curtailment before signing a long-term offtake. In Kyushu-type grids, value the project with suppression hours included, and price storage, demand-response or flexible tariffs into the bid.
4. Start consent work in parallel with engineering. Check prefectural ordinances, forest-clearing triggers and resident-explanation requirements early; a four-year consent tail can kill a subsidy-era return.
5. Write the exit into the land deal. Industrial buyers should require decommissioning security and land-return terms in the purchase or lease, so a generation asset does not hand the community a new derelict site in 2050.

FAQ: land supply, policy and risk after the bubble

Why did Japan run out of land for solar?

Topography and population density. Because Japan is mountainous and densely populated, land available for large solar farms is scarce, and that scarcity is what pushed developers onto the flat, maintained plots that golf builders bought in the 1980s and later abandoned.

How much solar capacity sits on old golf courses today?

A Bloomberg analysis found that 9 percent of utility-scale solar capacity in Japan is installed on former golf courses, and At least 10 percent of announced or under-construction utility-scale capacity is on such sites.

Did nuclear closures really drive this?

They set the timetable. After the 2011 Fukushima disaster, public outcry drove Japan to close dozens of reactors that had supplied a third of Japan's electricity, and the incentives offered to replace that output triggered the wave of large solar installations that needed land.

Is a golf course the environmentally safer choice?

Relative to clearing a hillside, largely yes: the ground is already disturbed, generally flat, and often already connected to the power grid, which is why it helps developers avoid opposition. It is not free of impact — turf chemistry, drainage works, habitat simplification and end-of-life panel handling still need assessment.

What should an industrial buyer watch for?

Curtailment exposure, permitting duration and decommissioning obligations. Land price is the easiest number to compare and the least decisive one; grid behaviour over a 20-year contract and the local ordinance landscape decide whether a former-fairway plant is a bargain or a stranded asset.

Sources

• Bloomberg — reporting on Japan's utility-scale solar and former golf courses, summarised by Yale E360: https://e360.yale.edu/digest/japan-solar-golf-courses and https://www.bloomberg.com/news/articles/2026-09-27/japan-has-no-space-for-solar-farms-apart-from-old-golf-courses
• GF, Kyocera, Kyudenko and Tokyo Century — opening of the 100 MW Kanoya Osaki Solar Hills plant in Kagoshima: https://gfcorp.jp/gf-content/sites/2/2020/04/pressrelease_opening_of_100mwPV_in_Kogoshima.pdf ; https://americas.kyocera.com/news/2020-05-28123115.html
• Global Energy Monitor — Kanoya Osaki Solar Hills project profile: https://www.gem.wiki/Kanoya_Osaki_Solar_Hills_Solar_Power_Plant
• Asahi Shimbun — former rural golf courses converted to the Ako Mega Solar Power Plant: https://www.asahi.com/ajw/articles/14464677
• Power Technology — Ako Mega Solar Power Plant capacity profile: https://www.power-technology.com/marketdata/power-plant-profile-ako-mega-solar-power-plant-japan/
• Renewable Press — juwi Shizen Energy 121 MW park on a former golf course in Sanda City, Hyogo: https://www.renewablepress.com/energy/press-release-7210-juwi-shizen-energy-starts-construction-of-121mw-solar-park-on-former-golf-course-in-hyogo-prefecture
• Institute for Sustainable Economic Policies — 2024 share of electricity from renewable energy resources in Japan: https://www.isep.or.jp/en/1561/
• Ember — Japan country profile and generation shares: https://ember-energy.org/countries-and-regions/japan/
• Reuters — Japan's 36-38% renewable target for 2030: https://www.reuters.com/business/energy/japan-aims-36-38-energy-come-renewables-by-2030-2021-10-22/
• Jones Day — Japan launches the feed-in tariff system for renewable energy (1 July 2012): https://www.jonesday.com/en/insights/2012/07/japan-launches-the-feed-in-tariff-system-for-renewable-energy
• Renewable Energy Institute — curtailment increases across Japan and recommendations for sustainable solar development: https://www.renewable-ei.org/en/activities/column/REupdate/20240411.php ; https://www.renewable-ei.org/pdfdownload/activities/REI_Recommendation_SustainableSolarDevelopment_EN.pdf
• Kyushu Electric Power — ESG Data Book 2024, revision of output control method: https://www.kyuden.co.jp/library/pdf/en/ir/esg/2024/esg_databook_en_2024.pdf
• Nagano Prefecture — ordinance on solar power businesses in harmony with local communities: https://www.pref.nagano.lg.jp/koho/kensei/koho/hotline/202510/hot_2510-10.html