By Kate McKeown
Energy is a fun subject, particularly in Alaska. These last few weeks I have heard about unique renewable energy generation projects happening around the state.
Some of these projects were highlighted at the seventh annual Alaska Rural Energy Conference that was held in Juneau September 27-29. The Alaska Center for Energy and Power (ACEP) and the Alaska Energy Authority collaborated to bring more than 430 people, representing more than 75 different Alaska villages and urban centers together, to discuss Alaska’s rural energy generation, transmission and end use. Within the first few hours of the conference Sara Fisher-Goad, Executive Director of Alaska Energy Authority, read Governor Sean Parnell’s Alaska Energy Awareness Month proclamation. Following the announcement, U.S. Senator Lisa Murkowski addressed the crowd, announcing that lowering energy costs in rural Alaska is the best way to spur state and local economies. She also stated that replacing diesel generation with renewable energy is the wisest course for rural communities.
The theme of producing stable, local and clean renewable energy carried throughout the conference. Clean energy technical sessions included: Performance of Wind Systems, Messaging Energy Efficiency, Progress toward Alaska’s Renewable and Energy Efficiency Goals, Geothermal Project Updates, Heating beyond Biomass, Hydrokinetics Updates, and many more! The conference closed on Thursday with remarks from Lt. Governor Mead Treadwell. Besides saying that the State is committed to having 50 percent of its energy come from renewable sources by 2025, he
also stated that Alaska needs to find ways to stabilize the cost of energy in rural areas.
Some Southeast Alaskans believe that one way to stabilize energy costs is to use boilers that burn wood pellets. The Coast Guard and Forest Service have already turned to woody biomass (by-products from logging) to heat some of their buildings in Southeast Alaska. David Dungate of ACT Bioenergy, explains that when one looks at the best return per dollar invested in energy, biomass makes sense. However, biomass does not come without challenges. Funding, air pollution and sustainable timber harvesting are just a few key components that must be addressed when considering woody biomass.
Others are looking to geothermal energy for both heating and electrical generation. However, it’s not as simple as finding hot boiling water in the ground. Both temperature and flow rate are important when determining the potential power source. Location is another important factor. How far away is the nearest city? How far away is the nearest transmission line? These questions are being asked by the city of Akutan, where they are considering investing $60 million to build a geothermal plant, transmission lines and access roads. They hope to produce between 15 and 100 MW, with a minimum of 8MW, according toRay Mann, a consultant for the city. Studies show that the geothermal plant can bring Akutan’s energy costs down from 66 cents per kilowatt-hour, before power-cost equalization, to around 13 cents. Wind and hydropower were also reviewed, but geothermal seemed to be the best option for the area.
Although hydropower wasn’t chosen in the city of Akutan, it’s the top choice for Hydaburg, located on Prince of Wales Island. Reynolds Creek, about 10 miles from Hydaburg, is the future site for a small dam and powerhouse to feed electricity into the Prince of Wales Island’s grid. The hydropower is anticipated to eliminate the use of diesel generators and is expected to cost only 11 or 12 cents per kilowatt-hour. Haida Energy, a joint venture of the Haida Corporation and the Alaska Power and Telephone Company, hopes to have the project up and running by 2014, but is still waiting on additional funding.
Like this:
Like Loading...