Energy Challenges and Solutions for Rural Alaska Reducing

  • Slides: 39
Download presentation
Energy Challenges and Solutions for Rural Alaska: Reducing the High Cost of Rural Sanitation

Energy Challenges and Solutions for Rural Alaska: Reducing the High Cost of Rural Sanitation Eric Hanssen, P. E. , LEED AP, CEM Program Manager ANTHC Rural Energy Initiative

ANTHC Rural Energy Initiative Alaska Native Tribal Health Consortium Vision: Alaska Natives are the

ANTHC Rural Energy Initiative Alaska Native Tribal Health Consortium Vision: Alaska Natives are the Healthiest People in the world Formed in 1998 Consortium of the Alaska Tribal Health System (ATHS) We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Environmental Health & Engineering Sanitation Health Facilities & Clinics Operations

ANTHC Rural Energy Initiative Environmental Health & Engineering Sanitation Health Facilities & Clinics Operations & Maintenance and Training Alaska Rural Utility Collaborative (ARUC) Rural Energy Initiative We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative The Value of Rural Sanitation Investments Rate per 1, 000

ANTHC Rural Energy Initiative The Value of Rural Sanitation Investments Rate per 1, 000 births Infant Hospitalization Rates in Villages with <10% of Homes with Water Service* Compared with U. S. Infants** 5 x 11 x 5 x *YK Region, Alaska, 1999 -2004 **All U. S. , 1999 -2001

ANTHC Rural Energy Initiative Water and Sewer User Fees as a Percentage of Median

ANTHC Rural Energy Initiative Water and Sewer User Fees as a Percentage of Median Household Income 8% 7% EPA Recommended Sustainability Threshold 6% 5% 4% 3% 2% Lower 48 Average 1% 0% Lower Kalskag Deering Selawik Brevig Mission Nulato Grayling Goodnews Juneau Anchorage Bay Sitka Palmer Water and sewer bills in rural Alaska range from $80 to $250 per month, and average 3 -8% of median household income; this confluence of factors is a direct threat to the sustainability of public sanitation across rural Alaska. We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Our Purpose The Alaska Native Tribal Health Consortium’s (ANTHC) Rural

ANTHC Rural Energy Initiative Our Purpose The Alaska Native Tribal Health Consortium’s (ANTHC) Rural Energy Initiative works with communities to implement innovative energy efficiency and renewable energy solutions to make public sanitation affordable for the people we serve across Alaska. We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Rural Alaska Communities We Serve We believe basic sanitation should

ANTHC Rural Energy Initiative Rural Alaska Communities We Serve We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative The Energy Intensive Arctic Sanitation System We believe basic sanitation

ANTHC Rural Energy Initiative The Energy Intensive Arctic Sanitation System We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Understanding the Arctic Water-Energy Nexus Regulatory 4% Parts, 13% Energy,

ANTHC Rural Energy Initiative Understanding the Arctic Water-Energy Nexus Regulatory 4% Parts, 13% Energy, 39% Labor, 44% Breakdown of average operating costs for a water/sewer system in rural Alaska We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Our Path: A Comprehensive and Collaborative Approach Energy Audit Analysis

ANTHC Rural Energy Initiative Our Path: A Comprehensive and Collaborative Approach Energy Audit Analysis Implement Recommendations Savings Onsite Assessment Develop Energy Model Develop Training Plan Monitor Energy Usage Collect Data Identify Potential Improvements Purchase Materials Evaluate Retrofit Effectiveness Evaluate Operating Practices Assess Facility Energy Use Identify Cost to Implement Efficiency Retrofits Provide Operator Training Construct Renewable Energy Systems We believe basic sanitation should be efficient, sustainable and affordable

ANTHC Rural Energy Initiative Our Path: A Comprehensive and Collaborative Approach Opportunities to Reduce

ANTHC Rural Energy Initiative Our Path: A Comprehensive and Collaborative Approach Opportunities to Reduce Rural Sanitation Energy Costs Hardware Changes Behavior Changes Proper O&M Training & Education Ongoing Monitoring ANTHC Rural Utility Support Efficiency Retrofits We believe basic sanitation should be efficient, sustainable and affordable New and Ongoing Projects Renewable Energy Systems

ANTHC Rural Energy Initiative Energy Costs Vary by Type of Water System Annual Energy

ANTHC Rural Energy Initiative Energy Costs Vary by Type of Water System Annual Energy Cost To Operate Various Water Systems $ 250, 000 • Northern & Interior Alaska communities have circulating water, and many have vacuum sewer, unlike Anchorage and Southeast Alaska conventional systems. $ 200, 000 $ 150, 000 $ 100, 000 $ 50, 000 • The result is very high fuel and electricity costs. $Circ/Vac Circ/grav Average Comm Fuel Cost Average PCE Share of Elect Cost Washeteria Conventional Average Comm Share of Elect Cost

Small Efficiency Investments Yield Big Savings Implementation Cost Annual Energy Savings ($) OPERATIONS &

Small Efficiency Investments Yield Big Savings Implementation Cost Annual Energy Savings ($) OPERATIONS & MAINTENANCE 3% MAJOR PROJECTS 23% LOCAL RETROFITS 16% MAJOR PROJECTS 63% OPERATIONS & MAINTENANCE 27% MINOR PRJECTS 18% Small Efforts = Big MINOR PROJECTS 27% Results LOCAL RETROFITS 23%

ANTHC Rural Energy Initiative Efficiency: Typical Operational Issues and Minor Fixes Identified • •

ANTHC Rural Energy Initiative Efficiency: Typical Operational Issues and Minor Fixes Identified • • • Boilers need to be cleaned and tuned Boilers settings are too high and not properly staged Boilers are operated all summer when they are not needed Circulation pumps can be shut-off in summer Building temperature is not set back during unoccupied hours Water storage tank and circulating loop temperature set higher than needed Lift Station pumps short cycling due to fouled floats Electric heat trace used all winter (or all year) when designed for emergency thaw only Leaks in Distribution/Collection causing increased well pump/lift station run time

ANTHC Rural Energy Initiative Efficiency: Longer Term Energy Upgrades Identified • • • Improve

ANTHC Rural Energy Initiative Efficiency: Longer Term Energy Upgrades Identified • • • Improve the building shell by adding insulation and replacing windows/doors Replace old and tired boilers with new appropriately sized high efficiency cold start boilers Replace pumps with new high efficiency pumps and variable speed drives Repair and or replace process pipe and hydronic system insulation Add remote monitoring to optimize energy performance

ANTHC Rural Energy Initiative Non-Energy Benefits: Capacity • Expanded Local Capacity – Expanded Knowledge

ANTHC Rural Energy Initiative Non-Energy Benefits: Capacity • Expanded Local Capacity – Expanded Knowledge – Improved Job Satisfaction – Local Ownership • Access to Regional Support

ANTHC Rural Energy Initiative Safety and Comfort • Better Lighting • Reduced Fire Danger

ANTHC Rural Energy Initiative Safety and Comfort • Better Lighting • Reduced Fire Danger • Greater Confidence Interval on Freeze-Ups • Improved Space Heat Balancing • More Regular Hot Water

ANTHC Rural Energy Initiative Health and Performance Improvements • Reduced Moisture/Mold • Faster/More Effective

ANTHC Rural Energy Initiative Health and Performance Improvements • Reduced Moisture/Mold • Faster/More Effective Drying • Reduced Water Waste

ANTHC Rural Energy Initiative Extended Lifespan • Critical Component Replacement • Improved Maintenance •

ANTHC Rural Energy Initiative Extended Lifespan • Critical Component Replacement • Improved Maintenance • Improved Financial Sustainability • Spare Parts Provision

ANTHC Rural Energy Initiative Appropriate Technology • Visual feedback to inform operator behavior •

ANTHC Rural Energy Initiative Appropriate Technology • Visual feedback to inform operator behavior • Ultra Efficiency / High–Tech versus Low–Tech – Low tech but locally operable encourages engagement, long term sustainability – SCADA versus local control / simple remote monitoring • Low O /M Technologies – Heat Recovery, Programmable Thermostats • Appropriate Technology/Scaled Renewables – Biomass Heating, Solar PV

ANTHC Rural Energy Initiative Case Study: Energy Efficiency Retrofits – Pilot Station, Alaska Training

ANTHC Rural Energy Initiative Case Study: Energy Efficiency Retrofits – Pilot Station, Alaska Training and small scale improvements. • Saves sanitation system over 1, 000 gallons of fuel oil and 25, 000 k. Wh annually • Equates to 66% reduction in Fuel and 33% drop in electricity • Combined annual savings of $11, 090 BEFORE: Brushing & cleaning soot from boiler AFTER: Clean flue passage We believe basic sanitation should be efficient, sustainable and affordable 4

ANTHC Rural Energy Initiative Remote Monitoring • http: //rm. anthc. webfaction al. com/reports/ •

ANTHC Rural Energy Initiative Remote Monitoring • http: //rm. anthc. webfaction al. com/reports/ • Records Results • Allow for check ins and low cost technical assistance • Greater access to information for regional partners

ANTHC Rural Energy Initiative Remote Monitoring: System Infrastructure

ANTHC Rural Energy Initiative Remote Monitoring: System Infrastructure

ANTHC Rural Energy Initiative Remote Monitoring: Hardware Ultrasonic flow meter Temperature probe Pressure sensor

ANTHC Rural Energy Initiative Remote Monitoring: Hardware Ultrasonic flow meter Temperature probe Pressure sensor

ANTHC Rural Energy Initiative Remote Monitoring: User Interface

ANTHC Rural Energy Initiative Remote Monitoring: User Interface

ANTHC Rural Energy Initiative Remote Monitoring: Data Analysis

ANTHC Rural Energy Initiative Remote Monitoring: Data Analysis

ANTHC Rural Energy Initiative Remote Monitoring: Data Analysis

ANTHC Rural Energy Initiative Remote Monitoring: Data Analysis

ANTHC Rural Energy Initiative Alternative Energy Solutions Diesel Power Plant Water Treatment Plant (WTP)

ANTHC Rural Energy Initiative Alternative Energy Solutions Diesel Power Plant Water Treatment Plant (WTP)

ANTHC Rural Energy Initiative Alternative Energy: Power Plant Heat Recovery – Savoonga, Alaska Utilize

ANTHC Rural Energy Initiative Alternative Energy: Power Plant Heat Recovery – Savoonga, Alaska Utilize excess heat from diesel power plant to heat the community sanitation system. • Reduces water plant heating fuel usage by 90% (8, 800 gallons) annually • Annual savings of almost $40, 000 per year 4

ANTHC Rural Energy Initiative Alternative Energy: Biomass Heating – Kobuk, Alaska Replace diesel with

ANTHC Rural Energy Initiative Alternative Energy: Biomass Heating – Kobuk, Alaska Replace diesel with locally harvested cord wood to heat community water system. • Reduces heating fuel usage by 3, 000 gallons annually • Annual savings of almost $24, 000 per year • Creates local jobs for woodcutters and operators 4

ANTHC Rural Energy Initiative Alternative Energy: Wind-to-Heat – Mekoryuk, Alaska Utilize dispatchable wind electricity

ANTHC Rural Energy Initiative Alternative Energy: Wind-to-Heat – Mekoryuk, Alaska Utilize dispatchable wind electricity to provide heat to the sanitation system. • Cost of $0. 05 per k. Wh equivalent to fuel oil at $1. 46 per gallon • Projected annual savings of almost $40, 000 4

ANTHC Rural Energy Initiative Alternative Energy: Community Water Source and Hydroelectric– Ouzinkie, Alaska Provides

ANTHC Rural Energy Initiative Alternative Energy: Community Water Source and Hydroelectric– Ouzinkie, Alaska Provides clean water and electrical generation to this remote community • Concrete faced rock-fill dam built to withstand 8. 8 magnitude quake • Community produces 30%of their electricity from hydroelectric, or 300, 000 kwh/year, and off-setting 22, 900 gallons of diesel

ANTHC Rural Energy Initiative Alternative Energy: Solar • Solar PV for electricity • Solar

ANTHC Rural Energy Initiative Alternative Energy: Solar • Solar PV for electricity • Solar Thermal for Water Heating • Production occurs for nearly 10 months of the year • 8. 2 KW solar PV system at Ambler Water Plant installed by Northwest Arctic Borough in March 2013 • The solar panels produce approx. $6500 of electricity annually • Carries “base load” of facility

ANTHC Rural Energy Initiative Alternative Energy: Heat Pumps • Ground Source & Air Source

ANTHC Rural Energy Initiative Alternative Energy: Heat Pumps • Ground Source & Air Source heat pumps • Air Source Heat Pumps effective down to 15 deg. F ambient air • GSHP captures heat from the ground via geothermal wells or loop field • GSHP transfers energy to facility through water-to-water heat pump • Heat Pumps well suited for moderate climates with low electric rates

ANTHC Rural Energy Initiative Alternative Energy: Ground Source Heat Pump – Metlakatla, Alaska •

ANTHC Rural Energy Initiative Alternative Energy: Ground Source Heat Pump – Metlakatla, Alaska • Provides heating for the Lepquinum Pool & Wellness Center • Estimated to displace 47, 200 gal of heating fuel & save $203, 000 annually • 70 x 6” boreholes at 350’ deep • 1” HDPE geothermal loop, w/ 1, 194 MBH Heat Pump • Building heating system upgrades include: • Thermal storage tank • Covert heating system from 180 deg to 115 deg • New heating coils in air handling units

ANTHC Rural Energy Initiative Alternative Energy: Combined Heat and Power (CHP) Micro-turbines • CHP,

ANTHC Rural Energy Initiative Alternative Energy: Combined Heat and Power (CHP) Micro-turbines • CHP, or cogeneration, uses modern Micro-turbine technology to produce electricity and heat • High efficiency and low maintenance • Typically fueled by natural gas or diesel • Keys to efficiency are full utilization of electricity and heat: • Run turbine near full capacity • Excess power used or sold to the grid • Heat is able to be used year round • Large facilities, hospitals and swimming pools are good candidates

ANTHC Rural Energy Initiative Alternative Energy: Combined Heat and Power (CHP) Micro-turbines • Yukon-Kuskokwim

ANTHC Rural Energy Initiative Alternative Energy: Combined Heat and Power (CHP) Micro-turbines • Yukon-Kuskokwim Health Corporation (YKHC) proposed CHP • Install 3 x 65 k. W micro-turbines to provide electricity and heat to YKHC hospital in Bethel, AK • Fueled by diesel • Estimated to save 65, 100 gal in fuel annually • Annual savings: $339, 420 • Project cost: $1, 642, 000 (4. 8 year payback)

ANTHC Rural Energy Initiative Current and Identified Projects Through 2018 We believe basic sanitation

ANTHC Rural Energy Initiative Current and Identified Projects Through 2018 We believe basic sanitation should be efficient, sustainable and affordable

Thank You Eric Hanssen, P. E. , LEED AP, CEM Program Manager ANTHC Rural

Thank You Eric Hanssen, P. E. , LEED AP, CEM Program Manager ANTHC Rural Energy Initiative [email protected] org For more information, please visit: http: //anthc. org/what-we-do/rural-energy/ We believe basic sanitation should be efficient, sustainable and affordable