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BI PV Urban Scale Project Details
Name projectHills-Garden Kiyota
Year2003-00-00 (Start operation date)
PV applicationInclined roof - mounted,
Inclined roof - integrated: PV roof tiles
PV power total kWp
LocationSapporo, Hokkaido
Latitude/Longitude42°59'12"N 141°25'30"E
© Misawa Homes Co., Ltd.

Project summary
All houses of the Hills-Garden Kiyota are all-electric and using high-efficiency energy equipment such as a heat pump system, as well as PV system. The community realizes a low maintenance and operation cost, in addition to a low energy-consumption and low CO2 emissions. In total 142 PV rooftops of 2,4 kWp each have been installed.

Urban scale PV aspects
Hills-Garden Kiyota is located in the east of Sapporo-city, Hokkaido. The community is a residential area designed for the 21st century, aimed at a harmonization of “life”, “local environment” and “global environment”. Hokkaido is the most northerly in Japan, and the energy demand for heating and hot-water supply is larger.

Special PV project info
PV architecture and building integrationTo create a well-designed appearance of the houses and a harmonized streetscape as required by the community. As well, a high thermal insulation performance was designed for energy conservation.
Urban planning issues
Economical and financial issuesAfter starting operation, a net-metering scheme was applied so that surplus PV is traded between the inhabitant and the utility company, at the same price of the residential electric tariff.
PV ownershipBuilding owner: Inhabitant. PV owner: Inhabitant. PV energy user: Inhabitant.
Tariffs and metering
Info on grid issuesTo avoid negative influences against the grid network caused by a high-density of PV systems installed in a limited area, a precise negotiation with a utility company was implemented and the design of grid-connection was decided.
Other infoAll houses of the community were all-electric. A heat pump system for heating, a high-efficiency electric water heater and an induction heater (for kitchen) were used to realize a high efficiency energy system.
Remarks and recommended reading

Other project data
Type of projectCommercial project
Other relevant aspects
Start of PV project
Start operation PV system2003-00-00
Main project leading companyMisawa Homes Co., Ltd.
Main project contact person
Contact email
Contact address
Includes PV database projects

Urban district data
Kind of urban areaResidential - urban
Main building typesHouses - single house
New/Retrofit/AddedNew building integration
Main PV area address

PV systems
PV applicationInclined roof - mounted,
Inclined roof - integrated: PV roof tiles
PV power total urban project336 kWp
Number of dwellings/units142
PV power per dwellings/units2 kWp
Main PV system typesGrid-connected - demand side
Main PV module typesFramed - regular module,
PV building elements - PV roof tile
Main PV cell typesCrystalline silicon - unknown other or mixed
PV module brand and type
PV inverter brand and type

PV cost and energy production
Total PV system investment
Average PV modules only costs
Total PV energy yield0 kWh
PV energy user owner

Projects website
Other websites
Webpage Educational Tool

1. Hills-GardenKiyota.pdf (language: English)

(bipv) building integrated pv