CASE STUDY
A Fast, Bilingual Website for a Yiwu Solar EPC
How SourSync designed, optimized and ranked a commercial solar website that loads in under a second — and works in China without a VPN.
Industry: Solar EPC · Location: Yiwu, China · Scope: Web Design + SEO + Speed
The Client
Yiwu SunPeak Solar is a commercial and industrial solar EPC serving the factories, warehouses and trade-market complexes of Yiwu and the wider Zhejiang region. They design, finance, install and maintain rooftop and ground-mount PV systems. They came to SourSync needing a website that could win the trust of cautious B2B buyers, speak to both Chinese and international audiences, and load fast everywhere — including inside China without a VPN.
The Challenge
Earn B2B trust
Cautious factory buyers compare several EPC vendors before committing to a multi-year rooftop investment.
Two audiences
The site had to convert both Chinese-speaking domestic buyers and English-speaking export clients.
Fast in China
It needed to load quickly and stay fully reachable inside China without a VPN, and worldwide.
Competitive SEO
Ranking for Yiwu and Zhejiang rooftop-solar searches in a crowded, high-intent niche.
Design Optimization
A conversion-first B2B layout that turns visitors into qualified enquiries.
- Conversion-first layout with a clear value proposition and CTAs on every screen
- Trust signals throughout: capacity stats, warranties, a clear EPC process and FAQ
- Mobile-first responsive design for buyers browsing on the factory floor
- Clean Urbanist typography, self-hosted for instant rendering
- Accessible colour contrast and lightweight, fast-loading components
- Prominent bilingual language switcher (English / 中文)
SEO Strategy
- Bilingual SEO with hreflang — English and 中文 served via TranslatePress
- Keyword targeting: Yiwu rooftop solar, commercial solar Zhejiang, industrial PV EPC China
- Optimized titles, meta descriptions and a clean semantic heading structure
- LocalBusiness and Service schema markup for rich, trusted listings
- Local Yiwu and Zhejiang signals to capture nearby high-intent searches
- Internal linking between services, the case study and the quote form
Top 10
for 8 target keywords
3x
organic enquiries
2
languages indexed
40+
keywords tracked
Performance & China Access
0.9s
cached page load
90+
Lighthouse score
0
China-blocked scripts
No VPN
needed in China
- LiteSpeed full-page caching for near-instant server response
- Combined and minified CSS — over 40 files reduced to one
- Lazy-loaded images and iframes to speed first paint
- Self-hosted Urbanist fonts so Google Fonts never blocks the page in China
- Zero China-blocked third parties (no Google, Facebook or YouTube calls)
- Long browser-cache lifetimes for instant repeat visits
Transparent Project Budget
A clear, fixed-price scope — no surprises. Here is exactly where the investment went.
Website design & build
Custom Elementor design, 6+ bilingual pages, lead-capture forms
¥14,800
SEO setup + 3-month campaign
Keyword research, on-page SEO, schema and local signals
¥6,000
Bilingual content & translation
Professional English and 中文 copy across the whole site
¥2,800
Speed & China optimization
Self-hosted fonts, LiteSpeed caching and CDN tuning
¥1,500
Brand & logo polish
Logo refresh and a consistent visual identity
¥1,200
Total project investment
¥26,300
Plus an optional Care Plan at ¥600 / month for hosting, updates, backups, monitoring and priority support.
The Results
3.5s -> 0.9s
page load time
-35%
bounce rate
3x
sales enquiries
Page 1
for core keywords
Within three months the new site was loading in under a second, fully reachable in China, ranking on page one for its core Yiwu solar keywords, and converting visitors into qualified rooftop-assessment enquiries at three times the previous rate.
Want a website like this for your business?
Fast, bilingual, China-ready and built to convert — from ¥3,980.