Distributed Energy Resources Integration
DER-CAM has been developed for analysts of site-specific electricity and heat requirements, producing an optimal plan for on-site generation to meet customer's energy requirements. The objective of the model is to minimize the site's energy bill by installing and operating on-site generation and combined heat and power (CHP) systems, installing other equipment, e.g. photovoltaic cell, or simply buying energy over a test period. DER-CAM models individual customer sites or a Microgrid.
This economic model is unique in its ability to consider both a customer's electrical and heat energy requirements at one time in a fully technology neutral manner (looking at trade-offs, benefits, and costs), instead of an analysis of each individual component. DER-CAM chooses which distributed generation and/ or CHP technologies a customer should adopt and how that technology should be operated based on specific site load and price information, together with performance data for available equipment options.
- Electricity-only loads (e.g. lighting and office equipment) can only be met by electricity.
- Cooling loads can be met either by electricity or by heat (via absorption chiller).
- Hot water and space heating loads can be met either by recovered heat or by natural gas.
- Natural gas-only loads (e.g. usually cooking) can only be met by natural gas.
The results of a DER-CAM analysis provide a valuable starting point for a more detailed engineering feasibility study of the optimal equipment choice, for forecasting and policy analysis.
Additional information can be found at the DER at LBNL website.
- Microturbine Economic Competitiveness: A Study of Two Potential Adopters
(696 KB PDF, 49 pp)
Lawrence Berkeley National Laboratory