Economics of Renewable Energy Integration and Energy Storage via Low Load Diesel Application

Abstract

One-quarter of the world's population lives without access to electricity. Unfortunately, the generation technology most commonly employed to advance rural electrification, diesel generation, carries considerable commercial and ecological risks. One approach used to address both the cost and pollution of diesel generation is renewable energy (RE) integration. However, to successfully integrate RE, both the stochastic nature of the RE resource and the operating characteristics of diesel generation require careful consideration. Typically, diesel generation is configured to run heavily loaded, achieving peak efficiencies within 70-80% of rated capacity. Diesel generation is also commonly sized to peak demand. These characteristics serve to constrain the possible RE penetration. While energy storage can relieve the constraint, this adds cost and complexity to the system. This paper identifies an alternative approach, redefining the low load capability of diesel generation. Low load diesel (LLD) allows a diesel engine to operate across its full capacity in support of improved RE utilization. LLD uses existing diesel assets, resulting in a reduced-cost, low-complexity substitute. This paper presents an economic analysis of LLD, with results compared to conventional energy storage applications. The results identify a novel pathway for consumers to transition from low to medium levels of RE penetration, without additional cost or system complexity.

Dimensioning of Reactive Power Compensation in an Autonomous Island System

“…To enhance the flexibility of the system, the dual minimum loading technique proposed in [22] is adopted. This approach enables low load operation of the thermal units, below their normal technical minimum loading level, in a coordinated manner aiming to increase RES absorption during base-load hours without committing expensive peaking units [25][26][27].…”

The Role of Low-Load Diesel in Improved Renewable Hosting Capacity within Isolated Power Systems

“…More recently IPSs have started to integrate renewable generation, as awareness of the economic and environmental impacts of diesel generation have become known [1,2]. Wind and solar photovoltaic (PV) represent the two most common renewable technologies employed to reduce diesel consumption, however, both are stochastic, and unable to eliminate diesel generation entirely [3,4]. To eliminate diesel generation, enabling technologies such as energy storage are required.…”

Development A Burner for Warming Poultry Houses by Used Oil تطویر محرقة لتدفئة عنابر الدواجن باستخدام الزیت المستعمل.

“…For this reason, stable working temperature was a clear indication of engine heat loss. The use of oil produced from waste tire as fuel, and the production of synthetic diesel fuel from renewable sources are at least as popular research topics as biodiesel ( Trongkaew et al (2011), Rowhani (2016, Rosa (2017), Hamilton et al (2018) and Samavati et al (2018). Waste mineral oils are generally divided into two groups: waste mineral engine (or automotive) oil and waste mineral industrial oil.…”