Entwicklungen nach Fukushima - ESB-Radler

Matthias Jung (MBA 2009)
energy efficiency is the only real solution. Everything
from mega projects, such as offshore wind farms, hydropower,
solar concentrators, to community-sized offgrid
mini-hydro generators, village biogas digesters,
biofuels, photovoltaic panels and even wave power,
will play a crucial role in Asia’s energy future. In this
respect, looking beyond China and India, the two largest
energy-consuming countries in developing Asia,
can be rather interesting, especially from a business
perspective. Only few countries in the world offer the
renewable energy potential of Indonesia. The country
offers not only opportunities in wind, solar, biomass
and hydropower, it is also home to estimated 40 % of
the world’s known geothermal resources.
Geothermal energy is basically heat from the earth –
clean and sustainable. When magma comes close to the
surface, it heats ground water trapped in porous rock
or water running along fractured rock surfaces and
faults. Those large areas of hydrothermal resources are
called geothermal reservoirs which are deep underground
with no visible signs showing above ground.
Sometimes geothermal energy finds its natural way to
the surface in the form of volcanoes, hot springs or
geysers. The most active geothermal resources are usually
found along major plate boundaries where volcanoes
and earthquakes are concentrated.
Most of the earth’s geothermal activity occurs along
the so-called Ring of Fire which goes around the edges
of the Pacific Ocean. Not surprisingly, the U.S. currently
leads the world with an installed power generating
capacity of geothermal power plants of 3,100 MW, followed
by the Philippines with an installed capacity of
approximately 1,900 MW. Indonesia has currently more
Southeast Asia has always been in the focus of Matthias who started his undergraduate
studies right at the outset of the Asian Financial Crisis in 1997/98.
In his first role as Marketing Manager for Germany’s investment promotion agency
he developed & implemented marketing strategies to attract FDI from Southeast
Asia. After the completion of his MBA program at the ESB Reutlingen and Nanyang
Business School in Singapore, he joined Siemens as a Market Analyst for its
oil & gas business in Asia-Pacific.
Matthias is now based in Jakarta and heading the strategic marketing for Siemens
Energy in Southeast Asia.
than 1,300 MW of geothermal capacity, making it the
fourth largest producer of geothermal power in the
world.
Under the second phase of its 10,000 MW power development
plan, the Indonesian government aims to attract
about US$12bn of new investment in the geothermal
sector to boost energy production to 4,000 MW in
the medium term. By 2020, this would bring Indonesia
to the top rank of countries generating power from
geothermal resources. There are a number of advantages
with geothermal energy. Unlike other renewable
resources, particularly wind, that are relatively intermittent,
geothermal energy can provide continuous,
reliable capacity at any given time. In addition, a geothermal
power plant requires a comparatively small
land area per MWh. Hydropower, which offers huge
potential as well, has proven to be a rather unreliable
source of electricity due to the severe droughts plaguing
the region. The economics are also in favor of
geothermal energy. Depending on the scenario for a
plant, the production costs are somewhere between 4 to
10 Euro cents per kWh. This makes geothermal energy
one of the most inexpensive renewable sources of base
load power.
The technology and the maximum size of a geothermal
power plant depend primarily on the temperature of the
site and quality of thermal water. There are two basic
types of plants used to generate electricity, indirect and
direct cycles. In indirect cycles heat of the geothermal
water with temperature of 80°C and above is transferred
via a heat exchanger to a second liquid in an adjacent
loop. This fluid then boils to vapor which powers
the turbine generator. In direct cycle steam with tempe-
Schwerpunkt Erneuerbare Energien – Entwicklungen nach Fukushima 23