EnergyOnline
Services

RSS FEED

EnergyOnline.com rss

News

New York Issues Offshore Wind Solicitation

LCG, November 9, 2018--The Governor of New York yesterday announced a solicitation for 800 MW or more of new offshore wind projects to supply renewable energy to New York to combat climate change. The New York State Energy Research and Development Authority (NYSERDA) issued the Request for Proposals (RFP), which is the first key step in New York's plan to install 2,400 MW of offshore wind projects by 2030.

Read more

Xcel Energy to Acquire Mankato Energy Center from Southern Power

LCG, November 8, 2018--Xcel Energy and Southern Power, a subsidiary of Southern Company, earlier this week announced an agreement for Southern Power to sell the Mankato Energy Center to Xcel Energy for $650 million. The completion of the sale, subject to regulatory approval and other closing conditions, is expected to be mid-2019.

Read more

Press Release

Impacts of High Variable Renewable Energy Futures


May 23, 2018 -- Lawrence Berkeley Lab partnered with LCG Consulting to develop a large number of variable renewable energy (VRE) scenarios to derive future generator portfolios and hourly price and emissions series. The main objective of this exercise is to offer policymakers, utilities and grid authorities a long-range view of how current choices could impact their future ability to cope with changes in the electric sector.

In particular, simulations address generation mix, wholesale and ancillary service prices, and carbon emissions across SPP, NYISO, CAISO, and ERCOT in 2030. The modeling effort and the underlying simulations were led by an LCG expert team and conducted with LCG’s proprietary models including the long-term least-cost planning program, Gen-X, the integrated G&T market model, UPLAN-NPM, and the regional PLATO data models.

The study found a general decrease in average annual hourly wholesale energy prices with more VRE penetration, increased price volatility and frequency of very low-priced hours, and changing diurnal price patterns. Ancillary service prices rise substantially and peak net-load hours with high capacity value are shifted increasingly into the evening, particularly for high solar futures. A significant decrease in non VRE generation and a modest decrease of firm capacity need were observed for high VRE future. Figure below shows the mean diurnal (24h) energy price profiles by scenario and region, averaged over all weekdays.
Wholesale Price Effects of 40-50% Wind and Solar
Source: Lawrence Berkeley National Laboratory

The diurnal price profiles display the infamous duck curve in all regions for high solar case. The overall electricity prices for all VRE scenarios show a decline across all regions by $5 - $16/MWh with strong total price decline in NYISO, CAISO, and SPP for the solar case while ERCOT has the largest price reduction in the wind case. For the high VRE cases, the study observed substantial increase in low price hours. The annual share of low price hours where the prices are below $5/MWh varies from region to region from 2.5% to 19% for all hours of the year. These low price hours offer an opportunity for hybrid renewables and storage developers such as CAES, batteries, and load shifting programs to optimize their asset portfolios.

Energy Prices
Source: LCG UPLAN-NPM simulation

The changes in the diurnal energy price profile, high ancillary service prices, and increased volatility may offer energy industry participants a new perspective for their future planning under alternative scenario. Hopefully, the study brings into focus how the current choices could impact their future ability to cope with changes in the electric sector.

Report (LBNL, LCG): http://eta-publications.lbl.gov/sites/default/files/report_pdf_0.pdf
Abstract, report and Data (LBNL): https://emp.lbl.gov/publications/impacts-high-variable-renewable


Copyright © 2018 LCG Consulting. All rights reserved. Terms and Copyright
Generator X
Generation and Transmission Planning and Optimization
UPLAN-NPM
The Locational Marginal Price Model (LMP) Network Power Model
UPLAN-ACE
Day Ahead and Real Time Market Simulation
PowerMax
Day-ahead and real-time portfolio revenue optimization
UPLAN-G
The Gas Procurement and Competitive Analysis System
PLATO
Database of Plants, Loads, Assets, Transmission...
MarketWatch
Annual summary of prices, congestion and important events in ERCOT
CAISO CRR Auctions
Monthly Price and Congestion Forecasting Service