Vacation

After four weeks vacation without interrupt I now returned to the office.

Apart from my constantly failing ambition to exercise extensive laziness in the peaceful summer of Sweden a few other achievements can be reported in the blog today.

The Pater Noster Lighthouse viewed from Carlsten castle on the Marstrand island.

The Pater Noster Lighthouse viewed from Carlsten castle on the Marstrand island.

Gull nesting on a pole in Edshultshall harbor

Gull nesting on a pole in Edshultshall harbor

The first two weeks were spent sailing in the archipelago of Bohuslän. We have this year installed 80 W Solar panels on the yacht. We have also installed a small 35 W (running about 20% of the time) refrigerator to keep some grocery cold. A logger soon revealed that balance between solar power and energy used by the fridge was kept with a healthy margin both hot sunny days and darker cloudy days. No specific action has been needed to keep the solar panel in the sun. I just glued them on a free horizontal space on the deck.

Althought, the Swedish summer is usually not challengingly hot it is useful to keep some of the food at lower temperatures than provided by the air and the sea.

Previously, I filled half the box with ice to keep it cool for some 4-5 days. Others connect to the electric grid in each harbor.

Seals resting on a rock outside Grundsund.

Seals resting on a rock outside Grundsund.

Sailing takes us close to nature. The seals are not much disturbed as we pass them serenely in the light breeze.

Hasselösund viewed from the bridge by mid-night.

Hasselösund viewed from the bridge by mid-night.

Even sailboats now days have an engine for the last mile docking or for getting to the targeted harbor. We filled up the tank with 13 liters diesel fuel after two weeks. Since we were 3 persons on board (in average that is, since we constantly had kids, friends and crew signing on and off the boat) we have used 2.2 litre diesel fuel per person and week.

For coking on the stove we use LPG on board. We consumed almost exactly one bottle of 2.3 kg Propane/Butane mix or 0.4 kg per person and week.

Once we are in official harbors we use the public bath rooms and showers there. I have estimated the energy for the hot water and the energy used for some visits to restaurants to 0.2 kWh per person. However, we mostly stay in natural harbors.

Zoie dog waiting for a guided tour to Munthes Hildasholm at Leksand, Dalarna.

Zoie dog waiting for a guided tour to Munthes Hildasholm at Leksand, Dalarna.

The third week we went by car to visit the Isabell daughter on internship at the chemical lab at ABB in Ludvika, Dalarna. The energy details are gathered below. We looked at gardens and visited the mines of Bergslagen.

On the trip back from the county of Dalarna we visited friends in Karlstad. Karlstad is a city with a lot of focus on public transports.

Like many cities around the world, Karlstad is adressing the capacity issue of the public transports. There are plans to introduce a proper BRT route. And, a lot of priority is put on promoting biking.

Karlstad makes the street space utilisation difference for bikes and cars explicit.

Karlstad makes the street space utilisation difference for bikes and cars explicit.

The fourth week was split in some days on the yacht and some days maintaining our house and garden.

Energy Summary

Week Diesel fuel Gas (for coking) Electricity solar Electricity from grid
Vacation Liter/person kg/person kWh/person kWh/person
1 2.2 0.4 0.9 0.2
2 2.2 0.4 0.9 0.2
3 22.5 19
4 10.7 19
Reference
Work week
24 38

Carbon emission summary

Week Diesel fuel Gas (for coking) Electricity solar Electricity from grid
Vacation kg CO2 kg CO2 kg CO2 kg CO2
1 6 1.2 0.0 0
2 6 1.2 0.0 0
3 59 0
4 28 0
Reference
Work week
63 0

Judging from this years’ vacation, a conclusion is that much less energy is required for the vacation than for ordinary life.

About volvobuses

Adjunct Professor of Catalysis at Chalmers University of Technology. Lives in Gothenburg, Sweden, with my wife and three daughters born in 1991, 1994 and 1997. Is a passionate runner.
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