INTRODUCTION 5designed to promote renewable energy sources using Yokohama as a case
study (Sect. 2.3 ). Third, it describes the methodology and data used for
the investment risks and returns analysis (Sect. 2.4 ). Fourth, it describes
the outcomes of renewable energy investments by focusing on solar PV in
both the residential and commercial sectors (Sect. 2.5 ). Yokohama, the
second largest city in Japan, offers more opportunities for installation of
solar PV than other renewable sources such as wind energy sources, which
require regulation and large-scale land acquisition. In fact, solar PV repre-
sent more than 80 % of the installed capacity of renewable energy sources
in Yokohama, whereas wind sources constitute only 10 % and hydro
sources account for 3 % (as of 2011). Thus, in this study, we focus on solar
PV investments. Investment challenges faced under the current FIT
system in Japan are presented as examples of other risks (Sect. 2.6 ). The
last section includes a discussion and conclusion.
The increase in the number of new green buildings shares represents
just a small component of the overall growth trend in the building sector
in China in recent years. For instance, in 2003, newly constructed build-
ings covered a total area of 3892 million metres^2 , whereas newly built
green buildings (including all 1-star, 2-star and 3-star green buildings)
covered a total area of 83 million metres^2 , which accounts for only 2 % of
the total building area. Chapter 3 addresses research issues such as the
causes of the current status of green building, the barriers and problems
associated with green building development, and the possible solutions to
such problems. Research methods are designed to address these research
questions.
Chapter 4 presents the results of a modelling study on the 2030
Low- Carbon City Scenario for DKI Jakarta. The study aims to identify
development paths that will allow DKI Jakarta to become a low-carbon
city by 2030. As the energy sector accounts for 89 % of all GHG
emissions generated in DKI Jakarta, the study focuses on this sector.
Particular emphasis is placed on the selection of energy technologies
that are necessary to achieve low-carbon city status. The results of the
study may be used as an information source to help prepare develop-
ment strategies, policies, and plans for DKI Jakarta.
Rather than assessing the environmental and social impacts of
renewable energy investments, Chap. 5 assesses the economic effects of
renewable energy investment in Yokohama. To determine the impact
of renewable energy expansion in Yokohama, we assess economic trans-
actions using the city input–output table.