Solar Heating & Hot Water Stephen Condon Sales & Marketing Manager ReVision Energy, LLC
ReVision Energy Solar Hot Water Systems for Businesses, Homes and Municipalities Solar Power for our Local Residents, Businesses, Non-Profits, Schools & Municipalities
ReVision Energy’s Mission: To help Northern New England make the transition from finite, polluting energy sources to clean, renewable energy sources. Reducing dependence on fossil fuels in two of the most fossil fuel dependent States
Who is ReVision Energy? Engineers: In House Resources: NABCEP: Projects:
Brown, Dartmouth, MIT, UNH Master Plumbers and Electricians 8 Certifications More than 3,000 solar energy systems
Each of our 52 employees have a vested interest in the workmanship and long term health of the company
Solar Thermal Applications • Domestic Hot Water • Space Heating – Low temp radiant floors
• Pool Heating Professional design, installation and service of renewable energy systems.
Commercial Solar Hot Water Design Identify the hot water demand for the building • Install a flow meter to accurately measure domestic hot water consumption in gallons – more common in commercial spaces • Historical fossil fuel consumption during the summer months – Isolates Domestic Hot Water fuel from space heating fuels • Average human consumption for each dwelling/unit… – Average 20 gpd for the 1st occupant, residential – Average 15 gpd for each additional occupant, residential • Commercial Kitchen – 2-3 gallons of hot water per plate Professional design, installation and service of renewable energy systems.
Solar Hot Water Components • Collector types:
FLAT PLATE
EVACUATED TUBE
Professional design, installation and service of renewable energy systems.
Glazed Flat Plate Collectors • Construction – Metal absorber in thermally insulated sheet metal box – Transparent low iron tempered glass to minimize heat loss and maximize transmission
• Characteristics – Good mid temperature performance – More cost effective than evacuated tube - Serpentine or Harp flow pattern
• Applications – Mid temperature applications • • • •
Solar Domestic Hot Water Low Temp process water Preheat applications Occasionally Combi systems Professional design, installation and service of renewable energy systems.
Evacuated Tube Collectors • Construction – Single wall or double wall glass cylinder with vacuum with metallic absorber inside. – Typically individual tubes connected to a manifold – Include barium getter to maintain vacuum
• Characteristics – Very low heat loss – Excellent performance in low light & cold conditions – Typically higher cost over flat plate
• Applications – Domestic hot water systems in cold climates – Combi Systems – Higher temperature process water systems Professional design, installation and service of renewable energy systems.
Components: Tanks
Professional design, installation and service of renewable energy systems.
Custom Solar Hot Water Tank
Professional design, installation and service of renewable energy systems.
Components: Pump Station • • • • • • •
Pump Temperature Gauge Pressure Gauge Pressure Relieve Valve Check valve Flow meter Fill and Drain ports
Professional design, installation and service of renewable energy systems.
How A Solar Domestic Hot Water System Works
Professional design, installation and service of renewable energy systems.
Collector Mounting Options True Southern Orientation is approximately 196º on a compass (magnetic). Our latitude is the perfect tilt angle with a true south facing array, approximately 43º to the horizon. There is a wide window of opportunity outside of 180º True and 43º tilt. Professional design, installation and service of renewable energy systems.
Mounted perpendicular to building to maximize collector area
Professional design, installation and service of renewable energy systems.
Mounted Flush to Pitched Roof Takes the orientation and tilt of the roof
Professional design, installation and service of renewable energy systems.
Solar Economics • Up $50,000 C&I Cash Rebate from the NH PUC – Based on anticipated BTU output – Professional energy audit required
• • • •
30% Federal Investment Tax Credit (ITC) 5 Year Accelerated Depreciation Low interest financing and/or local utility incentive options Renewable Energy Credits: – Designed to meet the needs of the NH RPS. We aim to achieve a 25% renewable energy mix by 2025. – Acts as a means of financing the up front investment of a solar hot water array – Assists in further development of commercial solar hot water systems in NH – Gains NH a step towards independence from the high and volatile cost of traditional fossil fuels.
Professional design, installation and service of renewable energy systems.
Renewable Energy Credits adding to success stories in NH!
Colby Sawyer College Professional and serviceArray of renewable energy systems. 127design, kW installation Photovoltaic RECs used to finance the project
Proctor Academy 72 kW Photovoltaic Array RECs used to finance the project
Professional design, installation and service of renewable energy systems.
Case Study: Sunset Hill House Sugar Hill, NH
Professional design, installation and service of renewable energy systems.
Professional design, installation and service of renewable energy systems.
Professional design, installation and service of renewable energy systems.
Institutions: Bowdoin College
Professional design, installation and service of renewable energy systems.
Retail Business: LL Bean, Freeport
Professional design, installation and service of renewable energy systems.
Breweries: Common Man Concord, NH
Professional design, installation and service of renewable energy systems.
Non Profits and Affordable Housing 1000 square feet of collector area 1200 gallons of thermal storage
Professional design, installation and service of renewable energy systems.
Questions and Answers: Steve Condon NH Branch Sales Manager 603.583.0228 -
[email protected]