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HomeMy WebLinkAboutHaines Borough Biomass Project Final Design - Apr 2019 - REF Grant 7071021s go�p aft OF COMAl( y� 7 zWE m y� z O �c 0 J31 . 1N9 Haines Borough Final Biomass District Energy Design Package April 23 nd 12019 SUBMITTED BY: WISEWOOD ENERGY 735 N ALBERTA STREET * PORTLAND, OREGON • 97217 SUBMITTED TO: BRAD RYAN, DIRECTOR OF PUBLIC FACILITIES HAINES BOROUGH FUNDED BY A GRANT FROM THE USDA FOREST SERVICE AND THE ALASKA ENERGY AUTHORITY FooT SMq oU S �RWNTOFAGWv� ■ MEMORANDUM TO: Brad Ryan (Haines Borough) FROM: Meagan Hartman (Wisewood Energy) CC: Krista Kielsmeier (Haines Borough), Andrew Haden (Wisewood Energy) DATE: April 23, 2019 RE: Final biomass district energy design package summary Wisewood Energy was retained by the Haines Borough to provide the detailed design and engineering of a biomass district energy system that can utilize locally available wood chip fuel from the Haines State Forest. This summary memo and supporting documentation constitutes the final design package, and builds upon the 95% design review memo submitted on February 7, 2019. This final package includes: 1. Final energy model, operating and capital cost opinions for Add Alternate development scenarios, and financial pro forma for Add Alternate development scenarios, included as attachments to this memo; 2. Stamped Mechanical (M0.0 — M11.0), Electrical (E0.1 — E4.0), Structural (S0.01 — S8.02), and Civil (C1.00 — C1.05) design and engineering drawing sets for the biomass district energy system, provided as a separate file; 3. Stamped structural calculations, provided as a separate file; 4. Mechanical specifications, provided as a separate file; and 5. Haines Biomass Site Assessment, submitted previously and included as a separate file. The proposed biomass district energy system is designed to provide heat to the Haines School and Pool, Administration Building, Library, Vocational Education building (Voc- Ed), Garage, and future Greenhouse; however, these individual connections may be completed at different times with minimal impact to the operations of the system. In consultation with the Borough, the Pool and School have been identified as the Baseline development scenario, the Library and Administration building as Add Alternate One, and the Voc-Ed building and Garage as Add Alternate Two. Costs to connect to the future Greenhouse are not included in capital cost opinions because no site has been identified; however, the future Greenhouse is included in the operating cost opinion for the full system buildout. WE 1 WISEWOOD ENERGY Biomass System Design Based on the Borough's goals to contribute to the local economy and leverage an underutilized, locally available resource, a single 1,700-MBH (500 kW) Fr6ling TM 500 wood chip boiler has been selected for the system. The biomass boiler is designed to provide approximately 88% of the identified buildings' heating needs at full system buildout, with existing oil boilers at each building providing the remaining load during peak and/or trim use and to serve as system backup (see Attachment 1 for the full buildout energy model). The Fr6ling boiler is capable of cleanly and efficiently utilizing wood chips with up to 45% moisture content, sufficient to handle material produced from the local Haines State Forest that has been passively dried. A fuel storage bay with a walking floor and hydraulic ram infeed will enable the system to effectively handle coarse wood chips with up to a four -inch particle size. Financial Analysis Updated operating costs have been provided for the Baseline development scenario of the School and Pool, Baseline with Add Alternate One, and full system buildout with both Add Alternates and the future Greenhouse included (see Attachments 2-4). Although each development scenario has different capital and operating cost estimates, their projected annual savings against business -as -usual operations are comparable: $46,000, $45,000, and $47,000, respectively. See Table 1 below for a side -by -side comparison of savings and other relevant metrics. Approximately $70,000 - 90,000 of the annual estimated biomass operating costs is allocated to wood fuel material and fuel handling and delivery, with another $10,000 - 15,000 for ash disposal and scheduled maintenance (depending on the development scenario); should these services be provided by local contractors, approximately 73 - 77% of the total operating costs could be retained in the local economy across the proposed development scenarios. Fuel handling costs in all scenarios assume that fuel is transported from a secondary storage site to the district energy facility using small (10- yard) trucks; these costs can be significantly reduced or eliminated if either a larger truck is identified and/or a fuel provider is able to consistently deliver material directly to the district energy facility's fuel storage bay (with capacity for approximately 30 tons assuming 45% moisture content). Finally, it should be noted that estimated annual savings have increased since the 95% design memo due to a previously undetected calculation error used to estimate existing fuel costs. The capital cost opinion for the district energy facility has also been updated and divided to reflect each Add Alternate scenario. Wisewood Energy estimates capital costs at the line item level and uses a standard method of assigning risk factors based on the certainty level of the source of the estimate (such as a vendor's quote versus an engineering estimate). See Attachments 5-7 for the detailed cost opinions of the Baseline scenario, WISEWOOD ENERGY Add Alternate One additional costs, and Add Alternate Two additional costs; see Table 1 below for a summary comparison. Notably, estimated project costs have been reduced since the 95% design memo due to updated lower PEX piping prices. Based on the projected capital and operational costs for each of the project's buildout scenarios, potential payback period scenarios were calculated. The simple payback is calculated assuming the projected savings in Year One operations are the same in subsequent years, without accounting for potential price escalators over the life of the system. The accelerated payback is derived from cumulative project savings that incorporate projected price escalators of 4% for fossil fuels and 2% for electricity, wood fuel, and labor costs. Finally, Wisewood Energy understands that the Borough has approximately $1 million available in grant funding to construct the biomass project, which was also included in payback calculations. Both simple and accelerated payback calculations are summarized in Table 1 below for each development scenario, assuming the $1 million grant is applied to system construction. See Attachments 8-10 for each development scenario's pro forma, including payback calculations that do not reflect use of the grant. TABLE 1 Estimated displaced fuel oil, annual savings, capital costs, and payback periods for each development scenario. The capital cost opinion range reflects a total project cost and a risk -adjusted total Displaced Oil (gal/yr) 32,800 35,200 40,500 Annual Savings $46,000 $45,000 $47,000 Capital Cost Opinion $1.88 — 2.14 M $2.3 — 2.61 M $2.56 — 2.91 M Simple Payback** (yrs) 25 36 40 Accelerated Payback** (yrs) 15 19 20 *Estimated fuel oil displacement and savings for the Full Buildout scenario include the future greenhouse; however, capital costs for connecting the greenhouse are not included in the capital cost opinion. **Simple and accelerated paybacks assume $1 million in grant funding is used for construction. Conclusions Wisewood Energy is pleased to offer this completed design package to support the Borough's innovative efforts toward energy independence and economic development. We believe that with the estimated annual savings, potential to retain a large portion of operating costs within the local community, existing grant funding, and high capacity of VIM 3 WISEWOOD ENERGY Borough staff and community members, the proposed biomass district energy system offers a promising opportunity for the Haines community. We anticipate scheduling a close-out call to review the final design, respond to any questions the Borough might have, and discuss potential next steps for implementation. In the meantime, Wisewood Energy is available for questions or comments on this final design package. MM WISEWOOD ENERGY Attachment 1 Final Energy Model: Full Buildout rn N W U ;O y N cl K N ` d O y Eo d o o 03,LL d N m f w m C LL o s E a0 d a a£ vTj fq (do a ° d a d °a CL a = a` N N n O M O a 7 W N M O V3 a 7 m O o M n (O N M O M 0 N 1° n Vi d w O O d O c m a W o N 10 N cp 7 0 N cj O N of Oi fD Oi M O N N O (O M (G n a O W V1 W �' �°.. LO M M N n O) CD N 1p M N N N n m 9 adi c o d e Q d a £ o m N � V N T j U o U d U N N e o O. o ° c L L E N —o d o '� .T. o 3 d� o y 3 o c m o w N L Ol C (6 a �' d o a U a O O_ d 'O O. E N C O U U (0 d O a (D Ol a d C ° 6 J ° y N E V 2= a 01 4 N N C~ o L m d 7 N d d Q C N d F D U o N 6— = m m 5~ a F m a E •c d u d 'o a N Q O! L d ° o 0 0 0 O) a M N W O W a E _ o m M m oo M oo oo n N M n 0 7 (O O O N -Ita O O O M O W O U n c00 °EfT- W " m L m E O r2 LO 1p 7 (O O M N 00 W (O W N a co co oo n n a N of C N� �j o c d a Lm a cdi o d c L ,� Q [f d d O d E o R LL °• N a c a` O m m L m C C mm33go N _ O mZmmuugLD _ _ O d Lo > C C m m m m m H ll d d C C (�°- 0 d d m C o Y O) m T °o m Y a•Oi N r 3 E E 'O 'd0 E Q -" o t z E° Lm E o N i E d �- m E T a t O. O n° Q L m m m° a H a N r'n Eca p y E d d O p m p T > C y a r0. j N Q m U C° U Q L m M n N M O N V O O n M OTj N ° o (°p d d Op ° `d d U `m O U U m m d V r2 f N V (N° (0° On N c c W W°° — ° 'o m m a W d a'-' W N m m (J y N C c Q W W C W W v - c d m � N O y o a :o O 0 0 O O O N y m O V N o O N O O O n N V n y j 3 y N m O i0 O) n O M �O n M o0 M O C O 10 �' M O U a O oD M n M Oi c 0) O r2 6 M O N m O N o0 N 00 O N m N (O n m O W M N N N O W C d fR A Ur V d C L LL o p d .v d O. E 3 d Ol Ol S L O d �. m m S U o m O d N O o o o u o U U O y U LL c: N c (c0 '� E E d O C U Y U c d O j� G d V O) 7 n V n m O N N 0 7 N (O O) p n 7 M N n n LL 'Q C a U m E L 0 ?i -- N m O .n w � OT1 U C C 2 � (p N M M O E U N m U U m fNa E p N c w o d d = = a a y E aai 5 5 y y ° o o u aEi p G O O m m f0 U 'O .- W ` m o. Q a`) `m xx O) o O a N m u m c` LLJ y a N m m g '� o o o y m W Q' a� w w E oEE ; 2'a@ ca o LL } 0 10 L6 T N Lcl1 Vl T O) C d .N 0 z r� £ V m f jj s m� 3 =off M 0 A a�� W c 'm 0 0EI oaw U 0 W rn W f,) �L UJ O o:2 cn m f/1 — m E N a V3'¢ =mv 0 E c ; m L N C W m 0 c m U7 J U � � d O U CL <C O = a` g 0 N 'a _0 I ID co W y L N LL <, -6 �m o p x O z I co � � w O m 4-+ J c N o cz am [0 C a cn _ 2 O O d -O N $ O O U U) N ' pp� c' 8 $ o 0 8 0 0 ul o N o � M M (HOM puewaa leaH AjjnOH a6eaany W Q 0 0 _ V) �Ww, d W �L N_ O B N m LL Ow t m 3 E L- N MO y W U) C o ca o = a` O) N W U N 0 N ` W N Eo o O n m LL m °E' 7 � LL o aO IL my T d fn N 6 O a o oa o a Q m -� rn m = m V u. OcW O m f0 f0 !l O m O m 0 0 cN N Ci N <O V O O (q V M (q V GD N IO vO !�I 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O LL O N O Ifs O LL O N O LL O LL O N O LL O LL O N O LL O 0 O N O 0 Ln O M O N U n O N Lq n O N Lq n O N U n O N Ul n O N Lq n O N L n O N N In n N N N N M M M M V V V V In LL') N LL•' O O O O n n n n ro dD Is H L0 7 N O U L O) M O o m co LL M O 70 9 3 O v I>O H N 5 O M C Z y U' cO N - />1 y{ Q X pp Im ' N C > n O. rn m O N O 7C3 'o ' W m O v d 2 ��p N T N W N n � IM 2 a Q � 00 c v fSS n I N WQO o N a O N O O O o 0 o g o in o in o u� o in ' (H8 W) puswa4 V20H POIUWi;s3 Attachment 2 Operating Cost Opinion: Baseline (Pool and School) Haines Borough Biomass District Energy W I S E W O O D ENERGY Operating Cost Opinion - Baseline (School & Pool) Location Haines, AK Proposed System Biomass District Energy Contact Andrew Haden Client Contact Brad Ryan Proposed System Output (MBH) 1,706 Phone (503) 706-6187 Date 4/19/19 Proposed System Fuel Type Forestry Residuals Email andrew@wisewoodenergy.com Existing Fossil Fuel System Operating Cost Current oil consumption 35,042 gallons per year Current heating oil cost $ 3.23 per gallon Subtotal: $ 113,082 Electricity Current electricity for heating consumption 152,640 kWh per year Electricity cost $ 0.21 per kWh Maintenance = Maintenance labor Maintenance parts $ 5,000 per year $ 3,000 per year Proposed Biomass Energy System Operating Cost �elivered to Secondary Stora Wood use 560 tons per year Wood fuel cost $ 90 per ton Wood Fuel Handling & Delivery' Handling and transportation 560 tons per year Delivery container size 3 tons per load Fuel deliveries needed 194 loads per year Fuel handling labor rate $ 150 per hour Labor for delivery 0.75 hours per delivery Ash Disposal Primary boiler ash bin removal 26 intervals Labor rate $ 45 per hour Labor hours for primary ash bin removal 0.5 per interval Labor for primary ash bin removal $ 23 per interval Secondary ash dumpster removal 28 intervals Secondary dumpster disposal fee $ 166 per interval Secondary dumpster rental fee $ 21 per month Electricity to Run Boiler Total electrical consumption 38,680 kWh Total electrical use charge $ 8,218 per year Total electrical demand charge $ - per year Heating oil use (peak and low load) 2,247 gallons Heating oil cost $ 3.23 per gallon New Biomass System Operations Cost, Total Subtotal: $ 32,238 Subtotal: $ 8,000 Subtotal: 50,361 Subtotal: $ 21,816 Subtotal: $ 5,440 Subtotal: $ 8,218 Subtotal: $ 7,250 $ 93,085 Al me[ere6 cmrtaired n — -- are [fte i,rtel6 — Pr Ky d W6.d En V aM are yrw— exc—s .Oe,rt. p i& ® Waewood Ene,gV. NI rtM -- Scheduled Maintenance Weekly and monthly boiler checklist 9 months Labor rate $ 45 per hour Monthly labor hours 10 per month Monthly labor cost $ 450 per month Boiler water treatment $ 50 per month Annual boiler cleaning $ 720 per year Remote Monitoring2 Static IP and Internet connection $ 60 per month Third party remote monitoring $ 5,000 per year Insurance' 0.15% of Project Cost Subtotal: $ 5,220 Subtotal: $ 5,720 Subtotal: 3,213 New Biomass System Maintenance Costs, Total $ 14,153 New Biomass System Cost, Total $ 107,237 The Operating Cost Opinion budget shown above does not account for potential fuel procurement management costs Notes 1: Fuel handling assumes wood fuel is transported from a secondary storage site to the boiler site for an additional cost, and may be avoided if fuel can be consistently delivered directly to the boiler site 2: Remote monitoring services are available from Wisewood Energy as an optional recommended service; costs are estimated 3: Insurance is estimated based on other biomass district energy projects and should be confirmed with the Client's insurer Al may 6.o— n t d c— are me Mel — ­Y d w e«aod —&— are P,o+aed —usN a �P, i& ® w ewom ­v.. —tins -- Attachment 3 Operating Cost Opinion: Baseline and Add Alternate One (Pool, School, Admin, and Library) Haines Borough Biomass District Energy W I S E W O O D ENERGY Operating Cost Opinion - Baseline & Add Alternate One (Pool, School, Admin, Library) Location Haines, AK Proposed System Biomass District Energy Contact Andrew Haden Client Contact Brad Ryan Proposed System Output (MBH) 1,706 Phone (503) 706-6187 Date 4/19/19 Proposed System Fuel Type Forestry Residuals Email andrew@wisewoodenergy.com Fossil Fuel Svstem Ooeratina Cost Current oil consumption Current heating oil cost Electricity Current electricity for heating consumption Electricity cost Maintenance Maintenance labor Maintenance parts Proposed Biomass Energy System Operating Cost Wood Fuel Delivered to Secondary Storag 40,067 gallons per year $ 3.26 per gallon 164,115 kWh per year $ 0.21 per kWh $ 5,000 per year $ 3,000 per year Wood use 604 tons per year Wood fuel cost $ 90 per ton _duel Handling & Delivery' Handling and transportation 604 tons per year Delivery container size 3 tons per load Fuel deliveries needed 209 loads per year Fuel handling labor rate $ 150 per hour Labor for delivery 0.75 hours per delivery Ash Disposal Primary boiler ash bin removal 28 intervals Labor rate $ 45 per hour Labor hours for primary ash bin removal 0.5 per interval Labor for primary ash bin removal $ 23 per interval Secondary ash dumpster removal 28 intervals Secondary dumpster disposal fee $ 166 per interval Secondary dumpster rental fee $ 21 per month Subtotal: $ 129,653 Subtotal: $ 34,406 Subtotal: $ 8,000 Subtotal: $ 54,403 Subtotal: $ 23,566 Subtotal: $ 5,486 Electricity to Run Boiler Total electrical consumption 39,544 kWh Total electrical use charge $ 9,083 per year Total electrical demand charge $ - per year Subtotal: $ 9,083 �g Oil (Used At Each Building) Heating oil use (peak and low load) 4,921 gallons Heating oil cost $ 3.26 per gallon Subtotal: $ 16,042 New Biomass System Operations Cost, Total $ 108,579 al m— .o— n l d c— w e«aod —&—are c pm i& 0 w ewom ­V.. Al,tm -- Scheduled Maintenance Weekly and monthly boiler checklist 9 months Labor rate $ 45 per hour Monthly labor hours 20 per month Monthly labor cost $ 913 per month Boiler water treatment $ 50 per month Annual boiler cleaning $ 720 per year Remote Monitoring2 Static IP and Internet connection $ 60 per month Third party remote monitoring $ 5,000 per year Insurance' 0.15% of Project Cost Subtotal: $ 9,383 Subtotal: $ 5,720 Subtotal: 3,912 New Biomass System Maintenance Costs, Total $ 19,015 New Biomass System Cost, Total $ 127,594 The Operating Cost Opinion budget shown above does not account for potential fuel procurement management costs Notes 1: Fuel handling assumes wood fuel is transported from a secondary storage site to the boiler site for an additional cost, and may be avoided if fuel can be consistently delivered directly to the boiler site 2: Remote monitoring services are available from Wisewood Energy as an optional recommended service; costs are estimated 3: Insurance is estimated based on other biomass district energy projects and should be oonfinned with the Client's insurer Al may 6.o— n t d c— are me Mel — ­Y d w e«aod —&— are P,o+aed —usN a c P, i& ® w ewom ­v.. —tins -- Attachment 4 Operating Cost Opinion: Full Buildout Haines Borough Biomass District Energy W I S E W O O D ENERGY Operating Cost Opinion - Full Buildout Location Haines, AK Proposed System Biomass District Energy Contact Andrew Haden Client Contact Brad Ryan Proposed System Output (MBH) 1,706 Phone (503) 706-6187 Date 4/19/19 Proposed System Fuel Type Forestry Residuals Email andrew@wisewoodenergy.com Existing Fossil Fuel System Operating Cost Current oil consumption Current heating oil cost 46,206 gallons per year $ 3.17 per gallon Subtotal: $ 148,344 Electricity Current electricity for heating consumption 164,432 kWh per year Electricity cost $ 0.21 per kWh Subtotal: $ 34,477 Maintenance Maintenance labor $ 5,000 per year Maintenance parts $ 3,000 per year Proposed Biomass Energy System Operating Cost �elivered to Secondary Stora Wood use 702 tons per year Wood fuel cost $ 90 per ton Wood Fuel Handling & Delivery' Handling and transportation 702 tons per year Delivery container size 3 tons per load Fuel deliveries needed 243 loads per year Fuel handling labor rate $ 150 per hour Labor for delivery 0.75 hours per delivery Ash Disposal Primary boiler ash bin removal 32 intervals Labor rate $ 45 per hour Labor hours for primary ash bin removal 0.5 per interval Labor for primary ash bin removal $ 23 per interval Secondary ash dumpster removal 28 intervals Secondary dumpster disposal fee $ 166 per interval Secondary dumpster rental fee $ 21 per month Electricity to Run Boiler Total electrical consumption 45,519 kWh Total electrical use charge $ 9,736 per year Total electrical demand charge $ - per year eating Oil (Used At Each Building) Heating oil use (peak and low load) 5,719 gallons Heating oil cost $ 3.17 per gallon New Biomass System Operations Cost, Total Subtotal: Subtotal: 8,000 63,158 Subtotal: $ 27,359 Subtotal: $ 5,587 Subtotal: $ 9,736 Subtotal: $ 18,148 $ 123,988 Al me[ere6 cmrtaired n — -- are [fte i,rtel6 — Pr Ky d W6.d En V aM are yrw— exc—s .Oe,rt. p i& ® Waewood Ene,gV. NI rtM -- Scheduled Maintenance Weekly and monthly boiler checklist 9 months Labor rate $ 45 per hour Monthly labor hours 20 per month Monthly labor cost $ 913 per month Boiler water treatment $ 50 per month Annual boiler cleaning $ 720 per year Remote Monitoring2 Static IP and Internet connection $ 60 per month Third party remote monitoring $ 5,000 per year Insurance' 0.15% of Project Cost Subtotal: $ 9,383 Subtotal: $ 5,720 Subtotal: 4,368 New Biomass System Maintenance Costs, Total $ 19,471 New Biomass System Cost, Total $ 143,459 The Operating Cost Opinion budget shown above does not account for potential fuel procurement management costs Notes 1: Fuel handling assumes wood fuel is transported from a secondary storage site to the boiler site for an additional cost, and may be avoided if fuel can be consistently delivered directly to the boiler site 2: Remote monitoring services are available from Wisewood Energy as an optional recommended service; costs are estimated 3: Insurance is estimated based on other biomass district energy projects and should be oonfinned with the Client's insurer Al may 6.o— n t d c— are me Mel — ­Y d w e«aod —&— are P,o+aed —usN a c P, i& ® w ewom ­v.. —tins -- Attachment 5 Capital Cost Opinion: Baseline (Pool and School) Haines Borough Biomass District Energy Capital Cost Opinion - Baseline (Pool & School) Location Haines, AK Client Contact Brad Ryan Date 4/19119 Proposed System Biomass District Energy Proposed System Output (MBH) 1706 Proposed System Fuel Type Forestry Residuals WISEWOOD ENERGY Contact Andrew Haden Phone (503) 706-6187 Email andrew@wisewoodenergy.com 010 DEVELOPMENT $ 4,500 0.3% 0.2% 011 Permits $ 4,500 0.3% 0.2% 1 Fire Marshal review EA $ 4,500 1 S 4,500 0.3% 0.2% 020 CIVIL 32 $ 2,720 $ 2,400 $ 36,620 2.8% 1.9% 2 Site Prep EA $ 600 4 32 $ 2,720 $ 2,400 S 5,120 0.4% 0.3% 3 Excavation CY $ 105 300 Included S 31,500 2.4% 1.7% 030 STRUCTURAL 0 $ - $ - $ 276,667 21.1% 14.7% 4 Concrete Foundation CY $ 600 111 Included $ - $ - $ 66,667 5.1 % 3.5 % 5 Boiler Building (Pre-engineered Steel) SF $ 105 2,000 Included $ - $ - S 210,000 16.0% 11.2% 040 MECHANICAL 1,697 $ 212,125 $ 642,415 $ 854,540 65.2% 45.5% 041 Fuel Storage and Conveyance 380 $ 47,500 $ 65,000 $ 112,500 8.6% 6.0% 6 Hydraulics Power Unit(HPU) EA $ 10,000 1 60 $ 7,500 $ 10,000 $ 17,500 1.3% 0.9% 7 Scraper Floor EA $ 30,000 1 240 $ 30,000 $ 30,000 $ 60,000 4.6% 3.2% 8 Drag Chain Convyer EA $ 25,000 1 80 $ 10,000 $ 25,000 $ 35,000 2.7% 1.9% 042 Biomass Boiler 496 $ 62,000 $ 249,050 $ 311,050 23.7% 16.6% 9 Wood -Fired Boiler EA $ 225,500 1 360 $ 45,000 $ 225,500 $ 270,500 20.6% 14.4% 10 Breeching and Stack EA $ 250 50 40 $ 5,000 $ 12,500 $ 17,500 1.3% 0.9% 11 Flue collar adapter EA $ 250 1 8 $ 1,000 $ 250 $ 1,250 0.1 % 0.1 % 12 Boiler Trim Package EA $ 1,800 1 40 $ 5,000 $ 1,800 $ 6,800 0.5% 0.4% 13 Controls EA $ 8,000 1 40 $ 5,000 $ 8,000 $ 13,000 1.0% 0.7% 14 Computer cabinet Monitor Keyboard EA $ 1,000 1 8 S 1,000 $ 1,000 S 2,000 0.2% 0.1 % 043 Hydronic Equipment - DE Plant 360 $ 45,000 $ 46,310 $ 91,310 7.0% 4.9% 15 Pumps P-01-02 EA $ 3,449 2 40 $ 5,000 $ 6,898 S 11,898 0.9% 0.6% 16 Pumps P-03-04 EA $ 403 2 40 $ 5,000 $ 806 S 5,806 0.4% 0.3% 17 Pumps P-05-06 EA $ 2,497 2 40 $ 5,000 $ 4,994 S 9,994 0.8% 0.5% 18 Pumps P-07-08 EA $ 5,090 2 40 $ 5,000 $ 10,180 S 15,180 1.2% 0.8% 19 Pumps, P-19 EA $ 915 1 16 $ 2,000 $ 915 $ 2,915 0.2% 0.2% 20 Tank, Heating Water Buffer Refurbishment EA $ - 0 32 $ 4,000 $ - $ 4,000 0.3% 0.2% 21 Tank, Boiler Loop Expansion EA $ 5,000 1 16 $ 2,000 $ 51000 $ 7,000 0.5% 0.4% 22 Air Separator, Boiler Loop EA $ 2,000 1 16 $ 2,000 $ 2,000 S 4,000 0.3% 0.2% 23 Chemical Dosing System EA $ 2,597 1 32 $ 4,000 $ 2,597 S 6,597 0.5% 0.4% 24 Unit Heater EA $ 1,400 1 16 $ 2,000 $ 1,400 S 3,400 0.3% 0.2% 25 Utilities (Water and Drain) FT $ 285 8 40 $ 5,000 $ 2,280 S 7,280 0.6% 0.4% 26 Pipe and Duct Insulation FT $ 55 168 32 $ 4,000 $ 9,240 S 13,240 1.0% 0.7% 044 Hydronic Equipment - School and Pool 461 $ 57,625 $ 282,055 $ 339,680 25.9% 18.1% 27 Heat Exchanger EA $ 6,800 1 65 $ 8,125 $ 6,800 S 14,925 1.1 % 0.8% 28 Valves and Trim EA $ 1,000 2 16 $ 2,000 $ 2,000 S 4,000 0.3% 0.2% 29 BTU Meter EA $ 2,900 1 24 $ 3,000 $ 2,900 S 5,900 0.5% 0.3% 30 DDC Controls EA $ 5,000 1 16 $ 2,000 $ 5,000 S 7,000 0.5% 0.4% 31 Pumps P-13-14 EA $ 2,697 2 40 $ 5,000 $ 5,394 S 10,394 0.8% 0.6% 32 Zone Thermostats EA $ 500 2 12 $ 1,500 $ 1,000 $ 2,500 0.2% 0.1 % 33 Dirt and Air Separator EA $ 3,000 3 12 $ 1,500 $ 9,000 S 10,500 0.8% 0.6% 34 Steel Piping, 2.5" FT $ 30 168 80 $ 10,000 $ 5,040 $ 15,040 1.1 % 0.8% 35 Steel Piping, 4" FT $ 38 100 40 $ 5,000 $ 3,800 S 8,800 0.7% 0.5% 36 Fittings, 2.5' EA $ 150 16 16 $ 2,000 $ 2,400 $ 4,400 0.3% 0.2% 37 Fittings, 4" EA $ 315 16 16 $ 2,000 $ 5,040 S 7,040 0.5% 0.4% 38 Valves, 4" FT $ 1,479 8 8 $ 1,000 $ 11,832 $ 12,832 1.0% 0.7% 39 Butterfly Valves, 4" EA $ 300 4 32 $ 4,000 $ 1,200 S 5,200 0.4% 0.3% 40 Dual -Line PEXS" to High School FT $ 44 1,652 40 $ 5,000 $ 72,275 $ 77,275 5.9% 4.1 % 41 Dual -Line PEX Fittings 5'to High School EA $ 539 10 12 $ 1,500 $ 5,393 $ 6,893 0.5% 0.4% 42 2' PVC Conduit to High School FT $ 3 826 32 $ 4,000 $ 2,561 $ 6,561 0.5% 0.3% 43 Trenching and Backfilling LF $ 85 1,652 Included $ - $ 140,420 $ 140,420 10.7% 7.5% 050 ELECTRICAL 35,000 $ 44 Control wiring 150 $ 18,750 $ 10,000 $ 28,750 2.2% 1.5% 45 Power distribution and meter connection 150 $ 18,750 $ 25,000 $ 43,750 3.3 % 2.3 % 060 PLUMBING 0 $ - $ - $ 0.0% 0.0% 46 Sewer connections (by Haines Borough) 0 S - 0.0% 0.0% 070 MISCELLANEOUS $ $ 65,450 5.0% 3.5% 071 Logistics $ 55,450 4.2% 3.0% 47 Freight to project site EA $ 50,000 1 $ 50,000 3.8% 2.7% 48 Equipment Rental Boom Lift 40 Ft MO $ 1,950 1 $ 1,950 0.1% 0.1 % 49 Equipment Rental Forklift 1 Ok MO $ 3,500 1 $ 3,500 0.3% 0.2% 072 Inspections $ 10,000 0.8% 0.5% 50 Third party inspections EA $ 5,000 2 $ 10,000 0.8% 0.5% Copyright © Wisewood Energy. All rights reserved. Pagel of 2 80 DESIGN & ENGINEERING $ 19,654 1.5% 1.0% 1 Civil engineering 0.50% $ 6,551 0.5% 0.3% 2 Structural engineering 0.25% $ 3,276 0.3% 0.2% 3 Mechanical engineering 0.50% $ 6,551 0.5% 0.3% 4 Electrical engineering 0.25% $ 3,276 0.3% 0.2% 90 GENERAL CONTRACTOR $ 5 Overhead 5% $ 65,514 5.0% 3.5% 6 Profit 10% S 131,028 10.0% 7.0% 100 CONSTRUCTION ADMINISTRATION $ 91,719 4.9% 7 Construction administration 4% S 52,411 4.0% 2.8% 8 Installation consulting and commissioning 3% $ 39,308 3.0% 2.1 % 110 CONTRACTOR $ 63,406 4.8% 3.4% 9 Contractor per diem MD $ 150 254 S 38,044 2.9 % 2.0 % 10 Contractor travel MW $ 500 51 S 25,363 1.9% 1.4% 120 CONTINGENCY $ 196,541 15.0% 10.5% 11 Estimating and contracting contingency 10 % $ 131,028 10.0 % 7.0 % 12 Unlisted items allowance 5% $ 65,514 5.0% 3.5% TOTAL PROJECT COST $ 1,878,139 130 RISK ADJUSTMENT 3$ 263,637 13 Estimated cost variance 20.1 % $ 263,637 NA NA TOTAL PROJECT COST - RISK ADJUSTED $ 2,141,776 Prices shown reflect market data as of 4/1212019 Notes 1: Connection costs to the planned future Greenhouse are not included because no site for the Greenhouse has been identified 2: Electricity distribution may be partially funded by AP&T 3: Estimated cost variance is determined at the line Rem level based on the certainty of the source data and aggregated to provide a risk adjusted total project cost Copyright © Wisewood Energy. All rights reserved. Page 2 of 2 Attachment 6 Capital Cost Opinion: Add Alternate One (Admin and Library) Haines Borough Biomass District Energy Capital Cost Opinion - Add Alternate One (Admin & Library) Location Haines, AK Client Contact Brad Ryan Date 4119/19 Proposed System Biomass District Energy Proposed System Output (MBH) 1706 Proposed System Fuel Type Forestry Residuals WISEWOOD ENERGY Contact Andrew Haden Phone (503) 706-6187 Email andrew@wisewoodenergy.com 040 MECHANICAL 693 $ 86,625 $ 1:1,414 $ 249,139 88.0% 59.7% 045 Hydronic Equipment- Administration and Library 693 $ 86,625 $ 161,414 $ 249,13: 88.0% 59.7% 1 Pumps P-09-10 EA $ 735 2 32 $ 4,000 $ 1,470 $ 5,470 1.9% 1.3% 2 Pumps P-11-12 FA $ 1,445 2 32 $ 4,000 $ 2,890 $ 6,890 2.4% 1.7% 3 Skid Mount EA $ 3,000 2 60 $ 7,500 $ 6,000 $ 13,500 4.8% 3.2% 4 Heat Exchanger EA $ 2,540 1 65 $ 8,125 $ 2,540 $ 10,665 3.8% 2.6% 5 Dirt and Air Separator EA $ 3,000 2 8 $ 1,000 $ 6,000 $ 7,000 2.5% 1.7% 6 Valves and Trim EA $ 1,000 2 8 $ 1,000 $ 2,000 $ 3,000 1.1 % 0.7 % 7 DDC Controls EA $ 5,000 2 40 $ 5,000 $ 10,000 $ 15,000 5.3% 3.6% 8 BTU meter EA $ 2,900 2 24 $ 3,000 $ 5,800 $ 8,800 3.1 % 2.1 9 Steel Piping, 4" FT $ 38 50 260 $ 32,500 $ 1,900 $ 34,400 12.1 % 8.2 % 10 Valves, 4" FT $ 1,479 8 8 $ 1,000 $ 11,832 $ 12,832 4.5% 3.1% 11 Fittings, 4" EA $ 315 16 16 $ 2,000 $ 5,040 $ 7,040 2.5% 1.7% 12 Butterfly Valves, 4" FA $ 300 4 32 $ 4,000 $ 1,200 $ 5,200 1.8 % 1.2 % 13 Dual -Line PEX 2.5" to Admin and Library FT $ 15 1,024 40 $ 5,000 $ 15,288 $ 20,288 7.2% 4.9% 14 Dual -Line PEX 2.5" Fittings To Admin and Library FA $ 115 4 16 $ 2,000 $ 459 $ 2,459 0.9 % 0.6 % 15 Z PVC Conduit to Admin and Library FT $ 3 308 32 $ 4,000 $ 955 $ 4,955 1.7 % 1.2% 16 Trenching and Backfilling LF $ 85 1,024 Included $ - $ 87,040 $ 87,040 30.7% 20.8% 17 Concrete Foundation CY $ 550 2 Included $ - $ - $ 1,100 0.4% 0.3% 18 Modified Shed for Substation EA $ 1,000 1 20 $ 2,500 $ 1,000 $ 3,500 1.2 % 0.8% 050 ELECTRICAL 120 $ 15,000 $ 19,000 $ 34,000 12.0% 8.1% 19 Control wiring 60 $ 7,500 $ 7,000 $ 14,500 5.1% 3.5% 20 Power distribution and meter connection 60 $ 7,500 $ 12,000 $ 19,500 6.9% 4.7 % 80 DESIGN & ENGINEERING $ 4,247 1.5% 1.0% 1 Civil engineering 0.50% $ 1,416 0.5% 0.3% 2 Structural engineering 0.25% $ 708 0.3% 0.2% 3 Mechanical engineering 0.50% $ 1,416 0.5% 0.3% 4 Electrical engineering 0.25% $ 708 0.3% 0.2% 90 GENERAL CON $ 42,471 15.0% 10.2% 5 Overhead 5% $ 14,157 5.0% 3.4% 6 Profit 10% $ 28,314 10.0% 6.8% 11 100 CONSTRUCTION ADMINISTRATION $ 19,820 7.0% 4.79 7 Construction administration 4% $ 11,326 4.0% 2.7% 8 Installation consulting and commissioning 3% $ 8,494 3.0% 2.0% 110 CONTRACTOR $ 25,406 9.0% 6.1% 9 Contractor per diem MD $ 150 102 $ 15,244 5.4% 3.7% 10 Contractor travel MW $ 500 20 $ 10,163 3.6% 2.4% NTINGENCY $ 42,471 15.0% 10.2% 11 Estimating and contracting contingency 10% $ 28,314 10.0% 6.8% 12 Unlisted items allowance 5% $ 14,157 1 5.0% 3.4% TOTAL PROJECT COST $ 417,554 7 Estimated cost variance 17.3% TOTAL PROJECT COST - RISK ADJUSTED $ 466,557 Prices shown reflect market data as of4/12/2019 Notes 1: Connection costs to the planned future Greenhouse are not included because no site forthe Greenhouse has been identified 2: Electricity distribution may be partially funded by AP&T 3: Estimated cost vanance is determined at the line item level based on the certainty of the source data and aggregated to provide a risk adjusted total project cost Attachment 7 Capital Cost Opinion: Add Alternate Two (Voc-Ed and Garage) Haines Borough Biomass District Energy Capital Cost Opinion - Add Alternate Two (Voc-Ed & Garage) Location Haines, AK Client Contact Brad Ryan Date 4119/19 Proposed System Biomass District Energy Proposed System Output (MBH) 1706 Proposed System Fuel Type Forestry Residuals WISEWOOD ENERGY Contact Andrew Haden Phone (503) 706-6187 Email andrew@wisewoodenergy.com 040 MECHANICAL 308 $ 38,500 $ 119,525 $ 159,125 85.7% 59.2% 046 Hydronic Equipment - Voc-Ed Bldg and Garage 308 $ 38,500 $ 119,525 $ 159,125 85.7% 59.2 % 1 Dual -Line PEX 15: to Voc-Ed and Garage FT $ 9 344 80 $ 10,000 $ 3,120 $ 13,120 7.1% 4.9% 2 Dual -Line PEX 2.5' to Voc-Ed and Garage FT $ 15 800 80 $ 10,000 $ 11,944 $ 21,944 11.8% 8.2% 3 Pumps P-15-16 EA $ 735 2 40 $ 5,000 $ 1,470 $ 6,470 3.5% 2.4% 4 Pumps P-17-18 EA $ 1,445 2 40 $ 5,000 $ 2,890 $ 7,890 4.3% 2.9% 5 Zone Thermostats EA $ 500 2 16 $ 2,000 $ 1,000 $ 3,000 1.6% 1.1% 6 Dual -Line PEX 1.5" Fittings to Voc-Ed and Garage EA $ 67 6 16 $ 2,000 $ 402 $ 2,402 1.3% 0.9% 7 Dual -Line PEX 2.5" Fittings toVoc-Ed and Garage FT $ 115 4 16 $ 2,000 $ 459 $ 2,459 1.3% 0.9% 8 Trenching and Backfilling to Voc-Ed and Garage LF $ 85 1,144 Included $ - $ 97,240 $ 97,240 52.4% 36.2% 9 Concrete Foundation CY $ 550 2 Included $ - $ - $ 1,100 0.6% 0.4% 10 Modified Shed for Substation EA $ 1,000 1 20 $ 2,500 $ 1,000 $ 3,500 1.9% 1.3% 050 ELECTRICAL $ 7,50 26,500 14.3% 9.9% 11 Control wiring 30 $ 3,750 $ 7,000L 10,750 5.8% 4.0% 12 Power distribution and meter connection 30 $ 3,750 $ 12,000 15,750 8.5% 5.9% 80 DESIGN & ENGINEERING $ 2,784 1.5% 1.0% 1 Civil engineering 0.50% $ 928 0.5% 0.3% 2 Structural engineering 0.25% $ 464 0.3% 0.2 % 3 Mechanical engineering 0.50 % $ 928 0.5% 0.3% 4 Electrical engineering 0.25% $ 464 0.3% 0.2 % 90 GENERAL CONTRACTOR $ 27,844 15.0% 10.49/6 5 Overhead 5% $ 9,281 5.0% 3.5% 6 Profit 10% $ 18,563 10.0% 6.9% 100 CONSTRUCTION ADMINISTRATION $ 12,994 7.0% 4.8% 7 Construction administration 4% $ 7,425 4.0% 2.8% 8 Installation consulting and commissioning 3% $ 5,569 3.0% 2.1% 110 CONTRACTOR $ 11,500 2% 4.30 9 Contractor per diem MD $ 150 46 $ 6,900 3.7% 2.69 10 Contractor travel MW $ 500 9 $ 4,600 2.5% 1.7% 120 CONTINGENCY $ 27,844 15.0% 110.4% 11 Estimating and contracting contingency 10% 1 1 $ 18,563 10.0% 6.9% 12 Unlisted items allowance 5% $ 9,281 5.0% 3.5% TOTAL PROJECT COST TOTAL 6 Estimated cost variance PROJECT COST - RISK ADJUSTED 9r �i Pnces shown reflect market data as of 4/12/2019 Notes 1: Connection costs to the planned future Greenhouse are not included because no site forthe Greenhouse has been identified 2: Electricity distribution may be partially funded by AP&T 3: Estimated cost variance is determined at the line item level based on the certainly of the source data and aggregated to provide a risk adjusted total project cost Attachment 8 Pro Forma: Baseline (Pool and School) ., N N a Vy N M m 16 1 y w m N a V A t0 cli v a N Ili M O Iq W W Iq W t^ M r b q i1 m V VV 6 n t9 1614 ■ t9 ' > - - - - y r cm0 N n � - - N r v N - - e v V yy m i1 W O n N N ... d N Le 16 w m N m th G 16 m d6 16r 1. m lw N > t9 t9 fA fA f9 fA fA 1 1 m O N> M N m f9 t9 t9 N - - - - - - - - - - - - - N m M i1 N' m m N M O O tp fA t9 N -iy t9 qm N CpNv - - - - - gVV m m - - - - > - - - - a fA t9 N Ny t9 C M W - - - - - V - - - - m O> - - - - y F» F» en n w <» <» u> e> m � umi � F» <» e> e> m 4O M a n <» M 1.12 Iq IS F ' ----- m N.N. N m - --- m I'll e a 16 - a w w w m m v w N m t9 .A .A H3 m 0 N m r f9 f9 m 7 , > N M to t9 4i E» ei to t» f» ei to e3 _ o F `o `o c .R y E o - O d p U o` a` - d m `o O - w - F o w c m o W .z d ° E O c .N p-` 42 d U E m c_ ry r ED _ U d d IOL d U U a W d m = d«= oE d`- d w w U W Clo LL d `-�' 'm o m 3' •�^ •w m m •m o o d E 3 c r E E 3 3 £ E iw w 33dw� z" z 0 W o� of a` ain�¢O = Ll Attachment 9 Pro Forma: Baseline and Add Alternate One (Pool, School, Admin, and Library) ., M N O O N NLQ N yWy N a Ma Ili N M m O v vi a ip aD V c1°O N fD m � N 16 r N m W y > NI N VV n C t0 n N c0 V N N V a r a v o M v v N I� Lq a V c0 V N a fA t9 t9 N - - - - - - - - - - W - - ^ N N N O N> > yM � J^ m ■ ' a1 9 < 9 A A 9 t0 N � � A Nol �O � m ' V M N fA kA C M t9 V M G - - - - - N c0 V - to - - N rn c0 V - C - - O - > N M --- w - v o N � - --- Le °' - V w w v w v m F» vi �R O to to U vi M w W N 4i - to w - - M N N to M to t» f» - - - w O N 1° M ei to e3 _ o w d F w - V w V V N O O — ui ui c R y E o O U a` o` d m O E -go5 ° w T > c m o W d O c � w e Uru 42 o w d U U Wo =lo rn LL - 4 - � 'm d `-�' 'm ° � c m w a m 3' •�^ •w m m •m o o d E 3 c r E E 3 3 £ E LL W O M a v Ti �i 4 W K Q 2 A K Q 2 0 W W a = Lm U Attachment 10 Pro Forma: Full Buildout ., L L _U o L � 0 co rn V! Li s m G mE C C m o Fai° ° 0 L ° d d U 0 .� MO W 0 co NJ N N V Lq N N m a 16n Iq It r aa O m > m M m ;i N l V O N O b tO ip _ C tr > m W o v V M fA V N N M {7 t+� N - - - to V O M N O > N - - ` 10 V N N N N N - V rn N - lo L6 O V N n M � N V i° cq aa W yWy W t9 t9 fA f9 fVV9 N b VV �p C C C� V N m n M tO � N h c0 V i1 n & M fA EA d M tO t9 fA fA f9 16 fA fA W VV V Ip O L N N N N fA EA t9 O Wq t9 fA fA f9 q Ili M N fA fA Iq Ili q q c0 V IqN 1. m co n o mIm a o rn � v rn rn ii m o v m a m y co o C V M to to U t9 4i - to w - - N N W N to M to t» f» - - - w 1° ei to e3 _ o o - d F w » N V - N V V N O O — ui ui U U C R E - O d U a` o` _ d m O wIR F w T c m c W d w U e ED d U IpL U W lo m 2 •w m m •m o o d E 3 c r E E 3 3 £ E iw o� El z" z 0 2 w w of a` aw,-o =