Showing posts with label landfill gas. Show all posts
Showing posts with label landfill gas. Show all posts

Maine PUC releases 2015 renewable report

Wednesday, April 19, 2017

Maine energy regulators have released a report on the state's electricity renewable portfolio standard, presenting data from 2015.  The Maine Public Utilities Commission's Annual Report on New Renewable Resource Portfolio Requirement - Report for 2015 Activity [PDF] provides a look at Maine's renewables law, now in its tenth year on the books.  It may also inform legislative discussions later this spring about the future of Maine's renewable portfolio standard.

In 2007, the Maine legislature enacted a law requiring that specified percentages of electricity that supply Maine’s consumers come from “new” or Class 1 renewable resources, ranging from 1% in 2008 to 10% in 2017.  The law also required the Commission to report annually to the legislative energy committee on the status of this requirement and related compliance matters.

According to the report, Maine suppliers sourced approximately 891,757 renewable energy certificates or RECs, from 30 facilities, to comply with the 2015 requirement.  Of these, 20 facilities were fueled by biomass, 4 by hydropower, 3 by wind and 1 by landfill gas.  25 out of the 30 facilities were located in Maine, with 2 in New York, and one each in Connecticut, Massachusetts, and Vermont.  By REC volume, 99% came from facilities located in Maine.

The report also estimates the cost to Maine ratepayers of Maine's new renewable resource portfolio requirement.  According to the report, the cost of RECs used for compliance in 2015 ranged from "approximately $2.00 per MWh to $42.50 per MWh, with an average cost of $13.16 per MWh and a total cost of $11,738,174."  Adding in $3,018 in alternative compliance payments by one supplier, the report estimates a total cost to ratepayers during 2015 of $11,741,192.  The report translates this total cost into "an average rate impact of about one-tenth of a cent per kWh. This is equivalent to about 55 cents per month, or 1%, for a typical residential customer; $50 per month for a medium commercial customer that uses 50,000 kWh per month; and $500 per month for a large commercial/industrial customer that uses 500,000 kWh per month."

Maine law also includes a Class 2 renewable portfolio standard, requiring an additional 30% of electricity come from existing renewables and other Class 2 resources.  According to the Commission's report, the average cost of a Class 2 REC in 2015 was $0.28 per MWh, with a total cost of $965,818.  The report notes that this is "equivalent to about 5 cents per month for a typical residential customer, and $4 and $40 per month for medium and large commercial/industrial customers with the usage levels described above, respectively."

This session, the 128th Maine Legislature is considering several bills that could affect Maine's renewable energy laws, including LD 532, An Act To Remove the 100-megawatt Limit on Hydroelectric Generators under the Renewable Resources Laws, as well as LD 1185, a concept draft which "proposes to enact measures designed to update Maine's renewable portfolio standards."

Voluntary renewable power markets small but growing

Friday, November 15, 2013

Electricity generated from renewable energy resources continues to grow its share of the U.S. market, according to a recent U.S. governmental report.  While most renewable energy sales are motivated by renewable portfolio standards -- state laws requiring utilities to source specified amounts of energy from renewable resources -- a small but growing amount of electricity is sold in voluntary green power markets.

Consumer demand for renewable-sourced electricity has led to voluntary markets in which consumers and institutions voluntarily purchase renewable energy to meet their electricity needs.  These markets include green power offers, competitive supplies, and over-the-counter renewable energy certificate (REC) sales.  According to the National Renewable Energy Laboratory's report, Status and Trends in the U.S. Voluntary Green Power Market, in 2012 voluntary retail sales of renewable energy represented approximately 1.3% of total U.S. electricity sales, or about 48 million megawatt-hours.  According to NREL, these sales represent the power produced by about 17,000 megawatts of installed renewable capacity.

While the voluntary renewable electricity market remains relatively small in absolute terms, it is growing rapidly.  NREL's report found that from 2010 to 2012, total green power market sales increased by 36%, for a compound annual growth rate of 1%.

In 2012, the resource mix supplying renewable energy to the voluntary renewable market was dominated by wind energy, at 80.1% of total green power sales.  Other resources in the mix include landfill gas and biomass (12.8%), hydropower (6.2%), solar (0.6%), and geothermal (0.3%). Like the entire voluntary market itself, solar power is a small but growing segment, experiencing a tripling of market share between 2010 and 2012.

For now, despite its recent growth, voluntary retail sales of renewable energy represent a small fraction of power sold.  The vast bulk of renewable energy is sold in compliance markets, established pursuant to state renewable portfolio standards or targets.  Will voluntary markets continue to grow?  How will proposals to increase state standards affect the voluntary markets?

Community-based renewable energy in Maine

Friday, December 30, 2011

An innovative program in Maine seeks to facilitate the development of community-based renewable energy projects.  The program offers significant incentives for the development of qualified electric generation projects of up to 10 MW in size.

In 2009, the Maine legislature enacted a law establishing the Community-Based Renewable Energy Pilot Program to encourage the sustainable development of community-based renewable energy.  By community-based, Maine's program targets locally-owned community-scale projects (as opposed to large-scale renewable projects owned primarily by out-of-state entities).

Under the program, qualified renewable energy projects can receive significant incentives including a long-term contract to sell the facility’s output to a Maine transmission and distribution utility for up to 20 years at average prices up to $100 per MWh (equivalent to 10¢ per kWh). This incentive is attractive because not only can the contract prices be above average market prices, but also the long-term power purchase agreement makes projects easier to finance by enhancing revenue certainty.

Eligible projects can apply to the Maine Public Utilities Commission for certification as community-based renewable energy projects. This process involves making public filings, negotiating with Commission staff, and demonstrating that the project meets the program’s qualification requirements. These include restrictions on resource type, nameplate capacity, and ownership.

Under the pilot program, eligible resources include:
  • fuel cells
  • tidal power
  • solar energy
  • wind systems
  • geothermal systems
  • hydroelectric generators
  • generators fueled by landfill gas
  • biomass generators whose fuel includes anaerobic digestion of agricultural products, byproducts or wastes.
Each individual project must not exceed 10 MW in nameplate capacity. Projects must also be primarily locally owned, meaning that 51% or more of the facility must be owned by Maine residents, governmental entities, businesses, or other qualifying local owners.

Once certified, a qualified project can choose either of two incentives: a long-term contract for the output of the facility with a transmission and distribution utility, or a renewable energy credit (REC) multiplier giving a 50% bonus in the amount of RECs produced.

To date, most have viewed the long-term contract as the more attractive option. Under this incentive, projects meeting the program’s requirements can obtain a contract at a fixed or variable price, provided that two criteria are met. First, the average price per kilowatt-hour must not exceed 10 cents. Second, the cost of the contract must not exceed the cost of the project plus a reasonable rate of return on investment as determined by the Commission. These contracts may be approved for up to 20 year terms.  Projects smaller than 1 MW can contract directly with the utility, while larger projects go through a competitive process held periodically by the Commission.

What will 2012 bring for Maine's community-based renewable energy pilot program?

2/24/10: some news from Maine

Wednesday, February 24, 2010

Maine roundup for today

The announced closure of the Bumble Bee sardine cannery in Prospect Harbor continues to be troubling. 128 jobs to be lost. Governor Baldacci says the state will help find a new business, and could designate the cannery as a Pine Tree Zone, allowing the new owner to be exempt from 80% percent of its employee tax withholding for the next 10 years.

Tissue manufacturer Lincoln Paper and Tissue forecasts 2010 as a moderately successful period of no major investments or substantial new hiring. LP&T's CEO Keith Van Scotter has considered switching the fuel for its steam boilers from No. 2 heating oil to natural gas, but can't do so without help from state or federal government.

Landfill gas to energy: the City of Old Town, University of Maine, and Casella Waste Management have requested $3 million in federal stimulus funding to construct a 6-mile gas pipeline allowing gas from the Juniper Ridge Landfill (operated by Casella on behalf of the state) to flow to the steam plant at the university. Phase I consists of building the pipeline and upgrading the steam plant, and would significantly reduce carbon dioxide emissions. Phase II involves building an electricity generating facility connected to the landfill by a second pipeline. These plans are tied into the nascent Maine Green Energy Alliance, an entity owned by Casella that aims to generate electricity and sell it directly to participating municipalities like Old Town. Landfill gas remains somewhat contentious, with some opposing the project on environmental and fiscal policy grounds.

Maine does have experience with the Pine Tree Landfill in Hampden, also operated (and owned) by Casella. The $10 million Pine Tree Landfill gas project commenced operation in 2008, and is projected to produce enough methane gas to power up to 3,000 homes for 15 years or more. In 2009 a similar project was launched at the Crossroads Landfill in Norridgewock.

Bangor Daily News editorial yesterday lauding Eastern Maine Electric Cooperative (EMEC) for its customer-oriented culture and low prices, noting that the customer-owned utility cut power prices by 10% last year. The editorial is careful not to bash investor-owned utilities, but hints that their profit-to-shareholder motives may result in worse rates or service than customers can get from coops like EMEC.


Elsewhere:

Bloom boxes unveiled. Lots of buzz still, relatively few details. We have learned that commercial-scale units cost $700,000 to $800,000, and that five Bloom Energy Servers deployed by EBay last July produce electricity to power space for 2,000 to 3,000 employees and cut eBay's power bill by $100,000 so far. Interestingly, EBay uses natural gas as the fuel, but plans to convert to landfill gas soon.

Iberdrola anticipates profit growth over the next three years.

The Senate continues to wrestle with the carbon bill, with carbon pricing remaining as the sticking point. Cap and trade? Cap and dividend? Carrot and stick?