renewable energy from landfill gas n.
Skip this Video
Loading SlideShow in 5 Seconds..
Renewable Energy from Landfill Gas PowerPoint Presentation
Download Presentation
Renewable Energy from Landfill Gas

Loading in 2 Seconds...

play fullscreen
1 / 31

Renewable Energy from Landfill Gas - PowerPoint PPT Presentation

  • Uploaded on

Renewable Energy from Landfill Gas. Corporate Overview. Headquartered in Houston, Texas Operations in 47 states, District of Columbia, Canada and Puerto Rico Nearly 20 million customers Collect and process around about 115 M tons of waste 273 active landfills Over 357 collection operations

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

Renewable Energy from Landfill Gas

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Corporate Overview

  • Headquartered in Houston, Texas
    • Operations in 47 states, District of Columbia, Canada and Puerto Rico
  • Nearly 20 million customers
  • Collect and process around about 115 M tons of waste
    • 273 active landfills
    • Over 357 collection operations
    • 104 recycling facilities
  • More than 45,000 employees
wm sustainability goals
WM Sustainability Goals

1. Double ourwaste based energy production

  • Power 2 million homes by 2020

2. Triple the tons of recyclable materials processed

  • Process 20 million tons by 2020

3. Invest in cleaner technologies

  • Direct capital expenditures to reduce emissions and increase fuel efficiency by 15%

4. Preserve and restore more wildlife habitats across North America

  • Increase the number of WHC certified facilities to 100
environmental protection
Environmental Protection

Regulations governing landfill gas:

  • Off-Site Underground Migration (RCRA Subtitle D)
  • Groundwater Contamination (RCRA Subtitle D)
  • Odor control
  • Organic Carbon Emissions through cap (CAA - NSPS)

The first priority for a renewable energy project is to be compatible with landfill operations and comply with all regulations and protect the public and environment

source of landfill gas
Source of Landfill Gas

Produced by the natural anaerobic decomposition of organic waste in the landfill

Typical Landfill Gas Percentages

  • Methane (CH4) 45% to 55%
  • Carbon dioxide (CO2) 35% to 45%
  • Oxygen and nitrogen 5% to 15%
  • Minor amounts of other organics and contaminants

Natural gas fossil fuel is methane, so landfill gas can be used for the same purposes as natural gas

types of landfill gas projects
Types of Landfill Gas Projects

Electricity Generation

Small on-site plants, off-site plants, or blended with fossil fuel at utility plant

Heating Fuel (“Medium BTU”)

Medium BTU gas used in steam boilers, kilns, dryers, greenhouses, liquids disposal, etc.

Process to Natural Gas (“High BTU”)

Remove carbon dioxide, nitrogen, oxygen, and other constituents, and deliver methane to natural gas pipeline

Vehicle Fuel

Process to natural gas, then compress or liquefy to produce CNG or LNG for alternative fuel vehicles

power generation projects are the most common
Power Generation Projects are the Most Common
  • Renewable energy incentives are directed to electricity
    • Renewable Portfolio Standards and Renewable Energy Credits
    • Federal tax credits
    • State subsidies, grants, and tax credits
  • Technology for electricity production is low risk
  • Access to market is universal (power lines)
  • More amenable to landfill gas quality
  • Less product quality risk (electricity vs. gas quality)
  • Electricity prices are less volatile than natural gas prices
waste management business model
Waste Management Business Model
  • Currently own 47 power plants
  • Capital is provided internally for projects meeting minimum Internal Rate of Return: add 8 – 12 projects per year
  • Corporate Renewable Energy Group (WMRE) performs centralized management for all projects:
    • Design, construction, and commissioning
    • Plant operations
    • Accounting and finance
    • Energy marketing

Landfill business unit supports the plant with backup operators, compliance management, community relations

  • WMRE business unit pays the landfill business unit for the landfill gas used at the plant
  • WMI has appetite for all of the tax credits
feasibility of landfill gas to energy plant
Feasibility of Landfill Gas to Energy Plant

Landfill Site Considerations

  • Sufficient Landfill Gas flow
  • Availability and Cost of the Utility Interconnect
  • Constraints of Air Permit

Energy Value

  • Electricity Price
  • Renewable Energy Credits
  • Federal Tax Credits
  • State Incentives
renewable energy revenue sources
Renewable Energy Revenue Sources
  • Energy Pricing: varies with competitive vs. regulated markets, dominant fossil fuel
  • Renewable Energy Credits: varies with state portfolio standards, $3 to >$30
  • Federal Tax Credits: $11/mwh for 10 years
  • Federal MACRS accelerated depreciation
  • State Incentives: investment tax credits, property tax and sales tax exemptions, grants, loans
  • Federal Grants - ARRA
power pools
Power Pools


H & C



C & NG


C & NG

Marginal Fuel

Fuel used at

normal load

C & NG


NG - Natural Gas


C - Coal

H - Hydro


Renewable Energy Credits (RECs)

Renewable Energy Portfolio Standards (RPS)

Value range = $3 - $55 per mwh

State policy that requires electricity producers to obtain a minimum percentage of their power from renewable energy resources.

Producers purchase (RECs) from qualified resources in amount needed to comply with standard. Sales may cross state lines.

Voluntary Utility Renewable Energy Programs

Value range = $1 - $10 per mwh

Customers pay a premium for blocks of renewable energy, and the utility purchases RECs from renewable resources, resulting in premium payment by utility to renewable resource.

Voluntary Corporate Renewable Energy Programs

Value range = $0.50 - $5 per mwh

Corporations purchase RECs to support renewable energy development.

regulated markets
Regulated Markets
  • PURPA rules: utility must buy power, but at their avoided cost rate
  • Avoided cost is approved by the state PUC
  • Avoided cost is driven by the marginal fuel cost
  • In many regulated markets, the marginal fuel is coal, so the avoided cost is often less than $30/mwh
  • Rates are recalculated periodically, so there is no certainty of future pricing
  • Usually sell to the distribution line owner, but may be able to wheel power to a co-op or municipal utility
  • With no competition and low avoided cost rates coinciding with no RPS, renewable energy has been slow to develop in some regulated markets
competitive markets
Competitive Markets
  • Texas, PJM, New York, New England, MISO
  • Competitive bidding by Retail Energy Providers
  • Short-term contracts: 1 to 3 years
  • Price is based on forward curve of marginal fuel, which in most competitive markets is natural gas
  • $1/mmbtu change in natural gas can result in $3/mwh to $6/mwh change in market price of power
  • Need for Renewable Energy Credits often is the incentive for buyers, so RECs are almost always bundled with power purchase
  • LFG is attractive because of its high capacity factor (high confidence in output)
long term fixed price contracts
Long-term, Fixed Price Contracts
  • Buyers may be utilities, municipal utilities, or co-ops.
  • Buyer’s incentive is to lock in energy rates, obtain renewable energy credits, or both
  • Renewable Energy Credits are almost always bundled with power purchase
  • Utilities in states with no RPS are initiating RFPs for renewable energy
  • Negotiated rate must be approved by PUC, City council, or power co-op board of directors, and deemed beneficial or protective of the electricity customers
federal production tax credits
Federal Production Tax Credits

“Section 45” Federal tax credit of $11/mwh can be claimed by the owner of a renewable energy generation facility which uses landfill gas as fuel.

Tax credit can be claimed for a period of 10 years after the placed in service date.

Facility must be placed in service prior to January 1, 2013 to qualify.

To be eligible, no entity could have claimed previous Section 29 (45k) tax credits at the landfill

conceptual project
Conceptual Project

Conceptual Project: 4.8 MW

Capital Cost: 4.8 MW x $1.5 million/MW = $7.2 million

Capacity Factor: 5% parasitic load, 95% run rate = 90% CF

Output: 38,000 mwh per year

Combined State & Federal tax rate = 39%

Section 45 tax credits: 38,000 x $11 = $418,000 / year

landfill gas in the total energy portfolio
Landfill Gas in the Total Energy Portfolio


  • Total resource is finite
  • Individual plant size is typically less than 10 MW


  • Distributed energy: typically located in population centers and connected to distribution lines
  • Base load resource: capacity factor is typically >90%
  • Peak load generation

Solar can be a great opportunity

10 Megawatts = 60 Acres


Branding and Advertising Campaign

  • Educate our customers that we are proud to be a garbage company, but we are also
  • An energy company
  • A technology company
  • An environmental company
  • A people company
landfill gas to energy is a key point in the sustainable growth goals
Landfill Gas to Energy is a Key Point in the Sustainable Growth Goals
  • Double ourwaste based energy production by 2020
    • Short-term initiative to build 60 new renewable energy facilities by 2013
improves perception of landfills
Improves Perception of Landfills
  • 2006 National Focus Group Research:

Knowledge of landfills’ electric generation capability moves opinion in a positive direction, with 72% of respondents having a more positive opinion

  • 2008 Individual Site Survey:

Knowledge of a planned electric generation plant made 87% of respondents more likely to favor a landfill expansion