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Saya berencana mengganti sumber listrik konvensional dengan tenaga surya demi mendukung lingkungan. Saya membutuhkan rancangan sistem yang lengkap—mulai dari perhitungan kebutuhan daya hingga skema integrasi—dengan satu komponen wajib: baterai penyimpanan sebagai solusi cadangan dan penyeimbang beban. Ruang lingkup pekerjaan: • Analisis beban listrik harian saat ini dan proyeksi pertumbuhan. • Perhitungan kapasitas panel, baterai penyimpanan, dan komponen pendukung agar pasokan stabil siang-malam. • Layout fisik serta diagram koneksi AC/DC yang mudah diikuti teknisi lapangan. • Daftar spesifikasi teknis (tipe baterai, siklus pengisian, efisiensi inverter, dan standar keselamatan). • Estimasi waktu pemasangan, langkah pemeliharaan, serta potensi penghematan karbon. Yang saya harapkan dalam lamaran: 1. Proposal proyek yang terperinci—jelaskan metodologi perhitungan, software atau alat simulasi yang akan dipakai, dan tahapan kerja. 2. Contoh pekerjaan serupa (bila ada) untuk menunjukkan pengalaman pada proyek energi terbarukan. 3. Perkiraan durasi pengerjaan sejak kickoff hingga penyampaian deliverable final. Deliverable akhir minimal berupa dokumen desain lengkap (PDF atau DWG), tabel spesifikasi, dan file simulasi/open-source data pendukung. Saya menghargai komunikasi jelas, update berkala, dan rekomendasi praktis yang memudahkan implementasi di lapangan.
Project ID: 40632531
6 proposals
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Active 2 days ago
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6 freelancers are bidding on average $20 USD/hour for this job

Hi, I would be pleased to support your solar energy project. I am an Electrical Engineer with extensive experience designing PV power systems, battery energy storage solutions, and industrial electrical infrastructure. My approach begins with a detailed load assessment and future demand forecasting, followed by accurate sizing of PV modules, battery storage, inverter, charge controllers, and protection devices. I perform energy simulations using industry-standard software (PVsyst, OpenSolar, or equivalent) to optimize system performance, battery autonomy, and lifecycle cost while ensuring compliance with applicable IEC standards. The deliverables will include complete electrical calculations, AC/DC single-line diagrams, equipment specifications, battery charging strategy, cable sizing, protection coordination, installation layout (PDF/DWG), maintenance recommendations, and estimated energy savings and carbon reduction. Every design is prepared with practical field implementation and long-term reliability in mind. I provide regular progress updates throughout the project and remain available to discuss design decisions to ensure the final solution fully meets your technical and operational requirements. Could you please share your location, average monthly electricity consumption, and whether you require an off-grid, grid-tied, or hybrid system? This information will allow me to prepare the most accurate and cost-effective design. Regards,
$15 USD in 40 days
5.8
5.8

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$20 USD in 40 days
6.0
6.0

Halo, Saya seorang Engineer Otomasi dan Sistem dengan spesialisasi dalam pemodelan sistem tenaga, konversi energi, dan simulasi sistem terbarukan. Saya siap merancang sistem tenaga surya yang handal, efisien, dan dilengkapi baterai penyimpanan untuk kebutuhan Anda. Metodologi & Tahapan Kerja: * Analisis Beban & Dimensi Sistem: Memetakan profil beban harian (peak/off-peak) dan proyeksi pertumbuhan untuk menghitung kapasitas panel surya (kWp), bank baterai (kWh), serta inverter secara presisi. * Simulasi Sistem (MATLAB Simulink): Saya akan menggunakan MATLAB Simulink untuk mensimulasikan dinamika sistem (skenario pengisian/pengosongan baterai, fluktuasi iradiasi matahari, dan stabilitas tegangan AC/DC) guna memastikan keandalan pasokan siang-malam. * Skema Teknik & Layout: Menyusun diagram skematik koneksi AC/DC, proteksi arus/tegangan, grounding, serta spesifikasi detail komponen (baterai LiFePO4/Lithium-ion, MPPT, efisiensi inverter) yang siap digunakan teknisi lapangan. * Studi Kelayakan & Pemeliharaan: Menyediakan estimasi penghematan emisi karbon (CO2), panduan pemeliharaan berkala, serta timeline pemasangan. Pengalaman Terkait: Saya berpengalaman dalam pemodelan sistem kontrol, manajemen daya, dan konversi energi terbarukan pada platform teknik, memastikan setiap desain tidak hanya teoritis tetapi juga praktis untuk diimplementasikan. Saya siap mendiskusikan detail data beban listrik harian Anda untuk memulai tahapan simulasi! Salam hangat, Zakaria L.
$25 USD in 40 days
2.8
2.8

We've recently helped a client transition to renewable energy by designing a comprehensive solar power system that met their specific needs. I can assist you in creating a detailed plan for your solar energy system that incorporates battery storage for reliable supply and load balancing. I understand you need a clean, professional design that includes daily load analysis and an easy-to-follow layout for technicians. Clear and effective communication during the project is also essential. We specialize in renewable energy solutions, offering detailed designs and simulations. We have 35+ 5-star reviews on similar projects on other platforms, but are new to Freelancer! I look forward to the opportunity to work together. Regards, MORNE.
$15 USD in 7 days
0.0
0.0

saya pernah rancang bangun solar cell untuk power pompa penyiraman otomatis kebun dan pernah untuk project PJU
$25 USD in 40 days
0.0
0.0

Dear Client, Untuk sistem tenaga surya dengan baterai, kesalahan paling umum adalah menentukan ukuran panel dan baterai hanya dari konsumsi harian. Desain yang baik juga harus mempertimbangkan beban puncak, profil pemakaian per jam, autonomy time, depth of discharge, losses, serta kemungkinan pertumbuhan beban. Saya memiliki pengalaman 11+ tahun di bidang elektronika dan sistem daya dengan 500+ assignment, termasuk power conversion, battery-operated systems, monitoring, protection, low-power design, dan integrasi sistem energi. Load Profile → Energy Balance → PV Sizing → Battery Sizing → Inverter & Protection → AC/DC Diagram → Layout → Validation Saya juga akan mengevaluasi tipe baterai, usable capacity, charging cycles, inverter efficiency, cable sizing, voltage drop, protection, grounding, dan safety margin agar sistem tidak hanya bekerja di atas kertas tetapi juga praktis untuk instalasi lapangan. Deliverable dapat mencakup: 1. Dokumen desain PDF/DWG 2. Single-line dan wiring diagram 3. Tabel spesifikasi komponen 4. Perhitungan sizing dan asumsi 5. Data/simulation file 6. Estimasi instalasi, maintenance, dan pengurangan emisi karbon Mohon kirim konsumsi listrik bulanan atau data beban harian serta lokasi proyek. Berapa lama backup yang Anda inginkan saat produksi solar tidak mencukupi—misalnya 4 jam, 8 jam, atau sepanjang malam? Kind Regards, Avi Gupta Quality is never an accident
$20 USD in 40 days
0.0
0.0

Bandar Lampung, Indonesia
Member since Jun 7, 2026
$3000-5000 USD
$30-250 AUD
$3000-5000 USD
$30-250 NZD
$30-250 NZD
$30-250 USD
$30-250 NZD
$30-250 NZD
$30-250 AUD
$30-250 AUD
$30-250 AUD
$30-250 USD
$30-250 NZD
$30-250 USD
$30-250 AUD
$3000-5000 USD