funding efficient and sustainable energy for wastewater treatment facilities · 2015-05-13 ·...
TRANSCRIPT
Connecticut Department of Energy and Environmental Protection
Funding Efficient and Sustainable Energy for Wastewater Treatment
Facilities
May 6, 2015
Diane W. Duva, Office of Energy Demand
Benefits of energy efficiency
• Energy efficiency is a valuable resource
– Reduces air pollutants and greenhouse gases
• Saves customers money
– Reduced operating costs = Opportunity for savings
reinvestment in facility
• Reduces need for more power generation
– More efficient large scale consumers can help reduce
grid strain.
• Creates jobs
3
Funding Sources
• Clean Water Fund
• Energy Savings Performance Contracts
• CT Energy Efficiency Fund
4
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
Clean Water State Revolving Fund (CWF)
PRIORITY LIST:
The following are reserves in the CWF. Reserves are utilized on a first come, first served basis.
CWF Requirements:
• Agreement is between State and Municipality as defined by State Statute
• EPA requirement: Buy American for Iron & Steel
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
Clean Water State Revolving Fund (CWF)
Available Reserves with Energy / Green
• RESERVE FOR PLANNING PROJECTS (55% grant):
– Energy audits for any WWTP that has not already received a CWF agreement for a complete treatment plant upgrade.
– Assessment of the risk to existing wastewater infrastructure from climate change (rising sea levels and increased storm intensities and coastal flooding) and an evaluation of alternatives for remedial actions.
– CSO communities to study the effectiveness of incorporating green infrastructure technologies into CSO mitigation projects associated with the implementation of a CSO LTCP.
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
Clean Water State Revolving Fund (CWF)• RESERVE FOR CONSTRUCTION OF I/I
REHABILITATION PROJECTS (20% grant):
– Projects will minimize sewage overflows resulting from surcharge, reduce hydraulic overloading and energy consumption, improve treatment efficiency, and provide reserve treatment capacity.
• RESERVE FOR PUMP STATION REHABILITATION PROJECTS (20% grant):
– For replacing aging infrastructure, reducing hydraulic overloading, incorporating energy efficiency equipment and providing emergency power.
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
Clean Water State Revolving Fund (CWF)
• RESERVE FOR RESILIENCY PROJECTS (20% grant):
– PA 13-15 requires wastewater improvement projects that may be affected by sea level rise to consider in the project’s design ways to mitigate the impact of sea level rise. The PA modified Section 22a-478 of the CGS. This reserve was created in response to this law.
– The types of projects funded under this reserve shall include work at the treatment plant, a pump station or within the collection system.
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
Clean Water State Revolving Fund (SRF)
• RESERVE FOR GREEN INFRASTRUCTURE:
– Treatment plant, pump station, and/or collection system improvement projects that incorporate cost-effective renewable energy components. (20% grant)
– Community demonstration projects of green infrastructure technologies to promote infiltration of stormwater into the ground in combined sewer overflow areas, for CSO communities that are working toward compliance with their CSO LTCP. (50% grant)
Energy Savings Performance Contracting
(ESPC)
▪ Implementation of energy saving measures, paid for by
guaranteed savings from future operating budget
▪ Approach is over 30 years old, approx. $4.1 billion market
in U.S. in 20131
– Government and institutional Sector > 50% of ESPC Market
1 Lawrence Berkeley National Laboratory, “Current Size and Remaining Market Potential of U.S. ESCO Industry”. (Presentation to Energy Services Coalition, August 13, 2013)
Performance contracting concept
– Address deferred maintenance
– Eliminate costly emergency
repairs
▪ Repurpose wasted utility dollars to:
– Upgrade to high efficiency energy systems
– Stabilize energy costs
– Improve budget accuracy
Why do one?
How does the CT ESPC program work?
▪ Pre-qualified vendors
(QESPs = “ESCOs”)
▪ Pre-approved, standardized documents and process– Required for use by state agencies.
Optional for municipalities.
▪ Support Services
Existing Buildings
▪ Incentives to replace functioning equipment with
more energy-efficient options
Covers up to:
▪ 40% of installed cost
– 35% common lighting
upgrades
– 40% high-end lighting
technologies, EMS, Custom
▪ 50% of installed cost for
comprehensive projects
14
Energy efficient lighting
Lighting controls
EMS/ Programmable Thermostats
Process Equipment
VFDs HVAC
Refrigeration Controls
Gas Measures
Pump Station Improvements
15
Process Automation Improvements
16
New Construction & Equipment
▪ Captures electric and natural gas savings where they are most cost-effective: during design
▪ Covers up to:– 95% of the incremental
cost of installing measures in new construction
– 75% of the incremental cost for equipment replacement projects
17
Energy Efficiency Lighting
Lighting Controls
HVAC Equipment
Building Envelope Refrigeration
Process Equipment
Gas Boilers VFDs
New Construction
Major Renovation
Equipment Replacement
Disinfection System Improvements
18
Aeration System Improvements
19
Business & Energy Sustainability
▪ Maximize operational strategies
with existing capital equipment
& people
▪ Integrate energy efficiency with
environmental stewardship &
corporate sustainability goals
▪ Develop sustainable energy
management practices
20
Control System Improvements
21
Pumping Efficiency
22
De-watering System Improvements
23
Mixing Improvements
24
Connecticut Department of Energy and Environmental ProtectionConnecticut Department of Energy and Environmental Protection
LINKS
Clean Water Fund: www.ct.gov/deep/cleanwaterfund
Municipal Wastewater: www.ct.gov/deep/municipalwastewater
Energy Efficiency: www.energizeCT.com
877-WISE-USE (877-947-3873)
Performance Contracting: www.ct.gov/deep/leadbyexample
Connecticut Department of Energy and Environmental Protection
Questions?
Ann A. Straut, Municipal Facilities, DEEP860-424-3137 [email protected]
Diane W. Duva, Office Director, Office of Energy Demand, DEEP860-827-2756 [email protected]
Andrew Brydges, The CT Green Bank [CEFIA]860-258-7834 [email protected]