|BI PV Urban Scale Project Details|
|Name project||Villa Garten Shin-Matsudo & Tiara Court Kasukabe|
|Year||1999-00-00 (Start operation date)|
|PV application||Inclined roof - mounted|
|PV power total|| kWp|
|Location||Matsudo & Kasukabe, Chiba & Saitama|
© POLUS Group
|A target for the project was to deploy residential PV systems with the housing sector playing a role in PV system installation in a residential area and to create a practical case study. The target wa achieved and a massive and creative project where all houses are equipped with PV systems was launched in two areas of the Tokyo metropolitan region, e.g. 36 PV houses in Matsudo, Chiba, and 35 PV houses in Kasukabe, Saitama.
These projects set a precedent for concentrated installation of residential PV systems, e.g. ‘PV community’, and were given ‘New Energy Award in FY1999’ in Japan.
The projects were practical case studies of developing a community equipped with PV systems and since then, similar projects were launched in various regions.
As for the Matsudo project (Villa Garten Shin-Matsudo), five additional houses equipped with PV systems were constructed and the community now consists of 41 PV houses in total.|
Urban scale PV aspects
|A harmonization between a house and PV system was well discussed at the beginning of planning.
Insolation condition, azimuth orientation and inclination of roof, appearance of house, etc. were considered house-to-house and the design for obtaining a maximum electricity generation from PV system was adopted basically.
In addition to PV systems, various kinds of facilities for energy conservation, reducing demand of air-conditioning were designed thus improving availability of equipment.|
Special PV project info
|PV architecture and building integration|
|Urban planning issues|
|Economical and financial issues||Installing lots of PV systems in a limited area, as well as bulk buying, worked for reducing installation cost.
The PV system received a governmental subsidy, available through Japan’s residential PV program. After 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 ownership||Building owner: Inhabitant.
PV owner: Inhabitant.
PV energy user: Inhabitant.|
|Tariffs and metering|
|Info on grid issues||Because there was no experience of such a high-density PV systems installation into a limited area, a precise negotiation with a utility company (Tokyo Electric Power corporation) was implemented to avoid negative influences against a grid network. Although the negotiation required much time, the PV system provider prepared preliminary test data on grid-connection with multiple inverters and no negative impacts were forecasted in their operation.
These preparatory efforts by project members made the project successful.|
|Other info||This project was a ‘Pioneer’ of concentrated installation of residential PV systems and has been contributing to deploying residential area PV system installations.
House sector’s positive action for environmental protection has realized increasing consumers’ concerns for energy conservation and environmental problems.
In addition, publicity for the project companies was increased.|
|Remarks and recommended reading||Latitude Villa Garten Shin-Matsudo:N35 49’ 22”
Longitude Villa Garten Shin-Matsudo: E139 55’ 27”
Latitude Tiara Court Kasukabe: N35 58’ 21”
Longitude Tiara Court Kasukabe: E139 45’ 32”
Energy yield per year:
2 800 – 3 050 kWh/3kW/year (calculated) + 2 840 kWh/3kW/year
Other project company: Sharp corporation.|
Other project data
|Type of project||Commercial project|
|Other relevant aspects|
|Start of PV project|
|Start operation PV system||1999-00-00|
|Main project leading company||Chuo Jutaku Co., Ltd.|
|Main project contact person|
|Contact address||POLUS group, Koshigaya-shi, Saitama, 343-0845, Japan|
|Includes PV database projects||Villa Garten Shin-Matsudo|
Tiara Court Kasukabe
Urban district data
|Kind of urban area||Residential - urban|
|Main building types||Houses - single house|
|New/Retrofit/Added||New building integration|
|Main PV area address|
|PV application||Inclined roof - mounted|
|PV power total urban project||123 kWp|
|Number of dwellings/units||41|
|PV power per dwellings/units||2 kWp|
|Main PV system types||Grid-connected - demand side|
|Main PV module types||Framed - regular module|
|Main PV cell types||Crystalline silicon - unknown other or mixed|
|PV module brand and type||Sharp Corporation|
|PV inverter brand and type||Sharp Corporation|
PV cost and energy production
|Total PV system investment||1 Euro|
|Average PV modules only costs|
|Total PV energy yield||0 kWh |
|PV energy user owner|
|Other websites |
|Webpage Educational Tool|
|(bipv) building integrated pv|