Presentation on theme: "Eco Houses of Vermont, LLC"— Presentation transcript:
1Eco Houses of Vermont, LLC Passive houseA Quick Path to the Comprehensive Energy Plan’s GoalsPresented by:Chris WestCertified Passive House ConsultantPresident, PHAUS VtChair, HBRANV Green CouncilCertified Green ProfessionalEco Houses of Vermont, LLC
2Thanks to Margaret Cheney Moving the political agenda toward super energy efficient buildingsPushing for Thermal Energy Taskforce legislationSupporting RBES Code Compliance with teethWe need to all support Margaret and other politicians who are working on this issue!
3Comprehensive Energy Plan Recommends that 100% of new homes built in 2030 be Net Zero Houses.30% of all new homes built to Net Zero by 2020.
4Net Zero Goal: Two paths Big Leaky House40+ panels to get to Net Zero
5Net Zero Goal and PH+Reasonable Sized PHA few PV panels
6Home Building Energy Triangle It’s the Recycling Triangle for Home Energy1st Reduce Load3rd Use fossil fuels sparingly if needed2nd Use as many as you can renewables
7Passive House: I’ve heard of that. One of the most sighted standards in the USSteadily gaining traction in the Building Industry as the Gold Standard for energy efficiencyRegularly sited in:Journal of Light ConstructionGreen Building AdvisorDoE: Energy Star and Building AmericaBBbD presentationsEven ppl who don’t like it reference it!
8PH: What is this mystical beast? Uses the apex of Building ScienceDeveloped in the 1990’s by Wolfgang Feist in GermanyImported to the us in 2005Spreading across the country and VermontInfluencing Building Standards in Vt and the US
9How does it relate to other programs? Energy Efficient Housing Concepts in the US:Vermont Energy Code (RBES): required for all new constructionEnergy Star 3.0: DoE Program (30% more efficient than Code)Building America: DoE super energy savings Program (15% better than EStar)Passive House: 90% more efficient than Code70% more efficient than Energy Star55% more efficient than Building AmericaCosts only max. of 15% more to build
12Passive House Energy Standard Heating Load (Site): 4.75 kBTU/SF/YRCooling Load (Site): 4.75 kBTU/SF/YRTotal Energy Demand (Source): 38 kBTU/SF/YRAir Tightness: .6 50pa
13Passive House Concept Controlling Heat Loss: Insulation R58 WALLS R90 CEILINGR60 SLABWINDOWSHigh PerformanceU value 0.16High Solar Heat Gain
14Passive House ConceptControlling Heat Loss: Eliminate Thermal Bridging
15Passive House Concept Controlling Heat Loss: Airtight Envelope ACH50(Vermont Energy Code = 4 ACH50)
16Passive House ConceptCapturing Heat Gains: People
17Passive House ConceptCapturing Heat Gains: Solar Heat Gains
18Passive House ConceptControlling Gains Seasonally: Orientation and Windows
19Passive House ConceptProviding Fresh Air: High Efficiency Heat Recovery Ventilation
20Passive House ConceptIntegrating all of these elements into one house
21Passive House Concept High Efficiency Heat Recovery Ventilation 0.75 w/cfm or lessTriple glazed windows with thermally broken framesR-value of 7.1 or betterUse materials with low embodied energyFoams only where you mustShort runs for DHWCompact building designs easier to hit PH Standard
22Passive House Results90% reduction in heating and cooling loads when compared to Code70%-80% reduction in total energy demandSuperior indoor air qualityOccupant comfortLower annual energy costsSmaller carbon footprint
23People say PH is expensive Results from actual houses in Vermont:Higher construction costs (10% to 15%)Doesn’t cost more! Monthly savings from Day 1.Much higher quality construction means more durable and therefore a better value over time.
24What are we talking about? What is the payback on a marble counter top?
25Passive House CostsCosts up to 15% more to build than conventional constructionSaves 90% on Heating and Cooling Bills
27Leading the change in building Just by being there Passive House has:Set the bar higher for all building standardsTaught builders and architects techniques that can be incorporated in “less” than Passive House projectsShown that the “too much” argument doesn’t float if monthly out of pocket is same!Given legislatures data on applying modern building science in actual homes
28Vermont Case Study: HfH Charlotte 1,050 sq. feet interior space
45Conclusion Passive House High quality home Healthier living environmentSlightly more expensive to buildPayback in 3 – 7 years (depending on price rise)Monthly cost is the same from day one!90% cheaper to live in (heating/cooling bills)High resale value expectedZero energy home easily attainable with PH
46Visit a Passive House International Passive House Days