<p>The subject of this essay in archaeology is the economy at the mining village of Saladuringthe 16th and early 17th century. The silvermine in Sala was once the foremost producer of silver in Sweden, and the mine as well as the mining village had had a long and rich history. This history can be seen in historical documents as well as in archaeological findings. The lure of silver attracted many different people to the mining village. This in turn madetrade an important part of the mining village. The trade made it possible for coins to circulatefreely and this made it possible for a monetary based economy to be established in the miningvillage. The focus of this essay is mainly on coin finds, but also on other archaeological items foundduring excavations of the mining village. These other archaeological finds can shed some light on the type of economy that existed in the mining village. Included is a comparison of coin finds in two other locations, namely the chapel ruins of St. Ursula in Västerås and Vårfrukyrkan in Enköping. Each of the churches is located near Sala and were used contemporary with the mining village. The purpose of including them into this study is to see whether these churches used the same stock of coin as they did in the mining village.</p>

The subject of this essay in archaeology is the economy at the mining village of Saladuringthe 16th and early 17th century. The silvermine in Sala was once the foremost producer of silver in Sweden, and the mine as well as the mining village had had a long and rich history. This history can be seen in historical documents as well as in archaeological findings. The lure of silver attracted many different people to the mining village. This in turn madetrade an important part of the mining village. The trade made it possible for coins to circulatefreely and this made it possible for a monetary based economy to be established in the miningvillage. The focus of this essay is mainly on coin finds, but also on other archaeological items foundduring excavations of the mining village. These other archaeological finds can shed some light on the type of economy that existed in the mining village. Included is a comparison of coin finds in two other locations, namely the chapel ruins of St. Ursula in Västerås and Vårfrukyrkan in Enköping. Each of the churches is located near Sala and were used contemporary with the mining village. The purpose of including them into this study is to see whether these churches used the same stock of coin as they did in the mining village.

Sala Silvergruva AB är ett av många företag som just nu kämpar med höga energi-kostnader. Denna rapport undersöker vilka möjligheter det finns att skapa ett hållbart energisystem i Sala Silvergruva med avseende på ekonomi, miljö samt sociala aspekter.   Rapporten undersöker nio tekniker; vindkraft, vattenkraft, solfångare, solceller, pelletspannor, värmepumpar, effektivisering samt lagring av värme från växthus respektive fjärrvärme. Dessa analyseras var för sig med utgångspunkt i tio krav som speglar hållbarhetsaspekterna. I samband med analysen ges rekommendationer angående investering i respektive energilösning. Rapporten mynnar ut i en resultatskarta där det tydligt framgår vilka krav de olika teknikerna uppfyller. Den följande diskussionen leder fram till en slutsats som presenterar vilka åtgärder som bör vidtas i syfte att skapa ett uthålligt energisystem för Sala Silvergruva AB.   Pelletspannor och värmepumpar visar sig i nuläget vara de mest uthålliga tekniklösningarna. På grund av husens ålder och egenskaper bör även energieffektiviserande investeringar göras. Eventuella investeringar beräknas vara återbetalda inom 1-5 år.   Det finns finansiella incitament för det lokala energiföretaget Sala-Heby Energi AB att bygga ett fjärrvärmelager i gruvan. En sådan lösning visar sig skapa nytta för såväl Sala Silvergruva AB som regionen i helhet. Återbetalningstiden för Sala-Heby Energi blir mellan 4 till 12 år vid en investering, beroende på lagerstorlek. / Sala Silvergruva AB is one of many companies currently struggling with high energy prices. This thesis examines what possibilities there are to create a sustainable energy system for Sala Silvergruva considering economics, environment and social aspects.   The report examines nine technologies; wind power, hydropower, solar capture, solar cells, pellet boilers, heat pumps, energy efficiency and storage of heat from greenhouses or district heating. These technologies are analyzed from ten different aspects representing the sustainability demands. In the analysis recommendations are given according investment to each technology. The thesis culminates in a result map which clearly indicates what requirements the various techniques fulfill. The following discussion will lead to a conclusion that present the steps to be taken in order to create a sustainable energy system for Sala Silvergruva AB.   Pellet boilers and heat pumps show to currently be the most resilient solutions. Due to the age and properties of the houses energy-efficiency investments should also be made. These investments are expected to be repaid in 1-5 years.   There are financial incentives for the local energy company Sala-Heby Energi AB to build storage for district heating water in the mine. Such a solution is found to create benefits for both the Sala Silvergruva AB region as a whole. Payback time for the investment is for Sala-Heby Energi AB between 4 to 12 years, depending on size of the storage.